# Civil Technology Grade 12 NSC November 2022 Memo (English)

> Grade 12 Civil Technology memorandum from the NSC November Exam 2022 (English), 20 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/civil-technology-nov-2022-civil-services-mg-eng/aa7a3b53-ca43-4382-9557-91a70fd02a20
- Updated: 2026-10-29
- Subject: Civil Technology
- Grade: Grade 12
- Document type: Memorandum
- Year: 2022
- Exam period: NSC November Exam
- Curriculum: CAPS
- Pages: 20

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## About this document

Civil Technology · Grade 12 · NSC November Exam · 2022. Memorandum. Read online or download the PDF.

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                                   NATIONAL
                              SENIOR CERTIFICATE

                                     GRADE 12

                      CIVIL TECHNOLOGY: CIVIL SERVICES

                                  NOVEMBER 2022

                               MARKING GUIDELINES

MARKS: 200

                      These marking guidelines consist of 20 pages
                                           .

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Civil Technology: Civil Services               2                            DBE/November 2022
                                    NSC – Marking Guidelines

INSTRUCTIONS FOR THE MARKERS

1.       Markers should:
          Familiarise themselves with the question and answer before
            evaluating responses from candidates.
              Always interpret the responses of the candidates within the context of
               the question.

              Consider any relevant and acceptable answer during pre-marking but
               should strictly adhere to the answers after finalisation of the marking
               guideline.

              There are TWO approaches to answering questions; these are (1) to
               explain and (2) to describe.
               1. If a candidate is required to explain a process in a specific number
                  of steps, only the first required number of responses should be
                  considered.
               2. However, if for example a candidate is required to explain or
                  describe a process, we need to consider that candidates may write
                  a long description, not necessarily well organised. In this case the
                  marker needs to evaluate the complete statement to judge if the
                  candidate explained the required outcome satisfactorily and
                  allocate marks on merit.

              Mark what the candidate wrote and do not interpret or predict
               responses.

              Indicate the tick or cross right at the position where the mark needs to
               be awarded or where the candidate made the error.

              Accept the letter corresponding with the correct answer as well as the
               answer written in full in multiple-choice or similar questions.

              Accept incorrect spelling in answers unless the spelling changes the
               meaning of the answer.

              If a learner writes two or more answers separated by a slash (/) mark
               only the first response, unless the additional answer/s are different
               names for the same item e.g., Yale lock/Night latch. In this case, the
               answer for the response should be awarded and the slash (/) should
               NOT be considered as an additional answer.

2.       For calculations:

              A mark is only awarded if the correct unit is written next to the
               answer. If the question states that the answer must be in a specific
               unit, a mark will ONLY be awarded if the answer has the correct unit
               as indicated in the question.

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Civil Technology: Civil Services               3                           DBE/November 2022
                                    NSC – Marking Guidelines

              Marks will only be allocated for the correct values if the candidates
               add are instead of multiply. NO marks will be awarded for the
               calculations and the answer.

              Where an incorrect answer is correctly carried over, the marker must
               recalculate the values, using the incorrect answer from the first
               calculation. If correctly used, the candidate should receive the full
               marks for subsequent calculations.

              Alternative methods of calculations must be considered, provided that
               the correct answer is obtained.

              For the calculation of quantities marks will be awarded for the correct
               use of the dimension paper.

3.       When marking drawings:

              The member for which the mark should be awarded must be drawn
               correctly in the correct position to receive a mark.

              A member incorrectly drawn but wrongfully repeated in another
               position will be awarded the mark for the repeated incorrect member
               provided that the marking guideline provide for TWO or more marks
               for that member (positive marking).

              Marks can only be awarded for a label if the label is correctly
               indicating the correct member that was drawn. Do not consider labels
               for members that were provided with labels on the answer sheet.

              Scale drawings should always be marked using an appropriate mask.

              If the incorrect/wrong drawing was drawn, the candidate can be
               awarded for only what was provided for on the marking guideline.

              If a two-dimensional drawing is required and a line
               diagram/pictorial/isometric drawing is drawn, members will be marked
               according to the assessment criteria and no marks will be awarded
               for the correctness of the drawing.

              If candidates draw/give more information than what is required, mark
               strictly according to the assessment criteria.

              The marks for the correctness of the drawing will only be awarded if
               the entire drawing with all members/parts is correctly drawn.

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Civil Technology: Civil Services               4                           DBE/November 2022
                                    NSC – Marking Guidelines

4.       Incorrect numbering of questions:

              If a candidate numbered an answer incorrectly, but the answer is in
               the correct position according to the sequence of the questions in the
               question paper, circle the incorrect numbering and mark the
               response.

              If questions were answered randomly not following the same
               sequence as in the question paper and the learner numbered
               incorrectly, the response should NOT be marked.

5.       Duplication of responses and questions answered in the incorrect
         place:

              If a question is answered twice, mark the first response.

              If a question should be answered on an answer sheet and the
               candidate answered it on both the answer sheet and in the answer
               book, mark the response on the answer sheet and cancel the
               response in the answer book.

              If the question was answered in the answer book instead of on the
               answer sheet, mark the response in the answer book according to the
               assessment criteria on the marking guideline.

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Civil Technology: Civil Services                5                           DBE/November 2022
                                     NSC – Marking Guidelines

QUESTION 1:          OHSA, MATERIALS,           TOOLS,      EQUIPMENT      AND     JOINING
                     (GENERIC)

1.1        1.1.1        Oil or water-based paint                                                   (1)

           1.1.2        Increases the strength of concrete                                         (1)

           1.1.3        Electrolysis                                                               (1)

           1.1.4        Plastic                                                                    (1)

           1.1.5        Zinc                                                                       (1)

1.2        1.2.1             50º/50 degrees 
                             38°/38 degrees
                             42°/42 degrees
                        ANY ONE OF THE ABOVE                                                        (1)

           1.2.2          Ensures stair rails/handrails/railings and or balustrades
                           are in place 
                         Keep treads free of dangerous obstacles
                         Keep treads free of protruding nails
                         Post warning signs
                         Ensure there is sufficient lighting
                         Ensure the surface is not slippery
                        ANY ONE OF THE ABOVE                                                        (1)

           1.2.3         To keep concrete in position 
                         To enable the filling of concrete
                         To act as formwork
                         To shape the treads
                        ANY ONE OF THE ABOVE                                                        (1)

1.3        When transporting/carrying long ladders:
            Ensure that it does not protrude excessively 
            Tie a red or orange flag/warning signs to the end of the ladder 
            Ensure that the ladder is firmly secured to the vehicle
            Protect the ladder during transportation or while carrying it
            Two people should carry the ladder
            It should be carried horizontally and on the same side
           ANY TWO OF THE ABOVE                                                                     (2)

1.4         Safety net/Net 
            Catch platform
           ANY ONE OF THE ABOVE                                                                     (1)

1.5        Brace/Strut                                                                             (1)

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Civil Technology: Civil Services                6                           DBE/November 2022
                                     NSC – Marking Guidelines

1.6        If the scaffold planks protrude more than 230 mm beyond the last support:
             The scaffold planks might tilt if worker steps on it 
             The worker might fall from scaffold
             It might be hazardous to workers working around the scaffold
            ANY ONE OF THE ABOVE                                                                  (1)

1.7        3 m/3 000 mm                                                                          (1)

1.8
                                           
                               
                                                   OR

                                                   OR

                                                  HOOK
                                       
                             

                                                   OR

                                                  EYE                                             (4)

1.9        1.9.1        Multi-detector                                                           (1)

           1.9.2        Laser level/Spirit level/Transparent pipe level                          (1)
                                                                                                  [20]

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Civil Technology: Civil Services              7                           DBE/November 2022
                                   NSC – Marking Guidelines

QUESTION 2: GRAPHICS AS MEANS OF COMMUNICATION (GENERIC)

NO.                     QUESTIONS                               ANSWERS                  MARKS
                                                   Ground floor: B/FIGURE B 
                                                   FIGURE B shows: No roofline/
        Name the FIGURE that represents the        Roofline in FIGURE A/
  1     ground floor. Give ONE reason for          Garage/Arrows on the                         2
        your answer.                               staircase/Ramp/Door at
                                                   lounge/Entrance door/Garage door/
                                                   Balcony in FIGURE A 
        Deduce the scale that was used to
  2     draw the floor plan of the house from      1:100                                       1
        the given building plan.

  3     Identify number 1.                         Landing                                     1

  4     Identify number 4.                         Balcony/Cantilever                          1

  5     Identify number 5.                         Shower                                      1

                                                   Wash hand basin/Wash
  6     Identify number 6.                                                                      1
                                                   basin/Basin/WHB 

        Give the abbreviation for the symbol at
  7                                             WC                                             1
        number 7.

  8     Identify number 8.                         Ramp                                        1

  9     Identify number 9.                         Roll-up door/Garage door                    1

 10     Identify number 10.                        Fluorescent light                           1

        Identify the number that indicates the
 11                                                No 11/11                                    1
        wall mounted light.

        Give the abbreviations for the
        following:                                 FFL 
 12                                                                                             2
          Finished floor level                    NGL 
          Natural ground level
        Name a suitable material that can be       Concrete/Wood/Aluminium/Steel/
 13                                                                                             1
        used for constructing number 2.            Masonry/Bricks/Glass 

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Civil Technology: Civil Services              8                             DBE/November 2022
                                   NSC – Marking Guidelines

                                                   Coffee nook/Kitchen/Playroom/
                                                   Private lounge/Office/TV room/
        Recommend ONE use for the area
 14                                                Bar/Dining room/Storage space/Any                1
        indicated by number 3.
                                                   use with utility value 

        Recommend ONE permanent fixture            Built-in cupboard/BIC/Cupboard/
 15     for bedroom 1 that can be used for         Closet/Bookshelf/Desk/                           1
        storage.                                   Drawer unit 

        Who is the architect that was
 16                                                HB Nel                                          1
        responsible for the drawing?

        Describe what is indicated by the
 17                                                Direction of the rise of the stairs             1
        arrows on the staircase in FIGURE B.

                                                   Revision 1 – Drawing of sanitary
        State what was done during revision 1                   fitments 
 18                                                                                                 2
        and revision 2 of the house plan.
                                                   Revision 2 – Drawing of staircase 

        Deduce the reference code from the
 19                                                QP 6 – 2022                                     1
        building plan.
        Who must be notified when a
 20     contractor sets out levels on a site and Architect/HB Nel                                  1
        there are variances?
                                                   Ceiling light/Light/Light switch/
        Identify ONE important fixture that is
 21                                                Switch/Fan light/Extractor fan/                  1
        omitted in the bathroom.
                                                   Bath/Bidet/Socket outlet/Cabinet 

 22     Draw the symbol for face brick.                                                           2

 23     Draw the electrical symbol for earth.                                                     2

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Civil Technology: Civil Services               9                                DBE/November 2022
                                    NSC – Marking Guidelines

 24     Draw the symbol for a grease trap.                                                            2

                                                      Total vertical dimensions:
                                                     Control test left    Control test right
                                                     220                 2 960 
                                                     5 450               110 
                                                     220                 2 820 
                                                     5 890               = 5 890 

        Prove by means of a control test that
        the total vertical dimensions on the left                        OR
 25                                                 Left side:                                          7
        and right of the plan in FIGURE B are
        equal.                                        220 + 5 450 + 220 = 5 890 mm
                                                    Right side:
                                                      2 960 + 110 + 2 820
                                                      = 5 890 mm
                                                     Note: If the alternative method is
                                                            used, one mark should be
                                                            allocated if both totals are
                                                            the same.
                                                    = 5,89  m x 8,11 m
                                                    = 47,77 m²
        Calculate the area of the first floor.      OR
 26     Show ALL calculations. Give your                                                                3
        answer in m².                               = 5 890 mm x 8 110 mm
                                                    = 47,77 m²
                                                    (47,7679 m2/47,8 m2/48,0 m2)
                                                                                     TOTAL:             40

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Civil Technology: Civil Services                        10                            DBE/November 2022
                                              NSC – Marking Guidelines

QUESTION 3: CONSTRUCTION ASSOCIATED WITH CIVIL SERVICES, OHSA
            AND QUANTITIES (SPECIFIC)
3.1        Manholes must be placed at the following locations:
            Close to the municipal connection 
            No further than 2 m from the boundary 
            Every 20 to 25 m on a straight drain line
            Where the drain changes direction
            At changes of gradients and levels, where the ground is terraced
            At all junctions
             ANY TWO OF THE ABOVE                                                                           (2)

3.2         To ensure that raw sewage spills will slide back into the channel pipe 
            So that vermin can’t settle there                                                             (2)

3.3        Jetting/Flowable fill                                                                           (1)

3.4
            POLING BOARD
                                                               POLING BOARD
                                          2
                                                  4

                              3

                     2
                                                       OR
                          3

                     STRUT/BRACE                                         STRUT/BRACE
   CORRECTNESS OF SUPPORT TO FIRM GROUND: 1

                                                      OR

                                                      OR

                                  NO            ASSESSMENT CRITERIA             MARK
                                  1    Correctness of support to firm ground:     1
                                  2    Poling boards                              2
                                  3    Struts/Braces                              2
                                  4    Trench                                     1
                                                                      TOTAL:      6                         (6)

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Civil Technology: Civil Services                 11                         DBE/November 2022
                                       NSC – Marking Guidelines

3.5        Transparent pipe level/Dumpy level/Laser level                                            (1)

3.6        A qualified person has:
            The knowledge 
            Training 
            Experience
            The qualifications
           ANY TWO OF THE ABOVE                                                                       (2)

3.7       Safety regulations for open manholes:
           The area must be cordoned off 
           Warning signs must be clearly visible 
           Only competent persons are allowed to work in a manhole
           The competent person must be accompanied by at least ONE other
            person
          ANY TWO OF THE ABOVE                                                                        (2)

3.8        3.8.1         Rope grab                                                                   (1)

           3.8.2         Breathing apparatus                                                         (1)

3.9        3.9.1         Volume of a cubic water storage tank
                         = Area of base x height
                         = s3
                         = 2,9 m  x 2,9 m  x 2,9 m 
                         = 24,39 m3                                                                  (4)

           3.9.2         Volume of water in tank = 24,39 x 1 000  litres/cubic metre
                                                 = 24 390 ℓ /24 389 ℓ                                (2)

3.10                                                                            2
                     4                         3                      4

                                   2                              2            4    4   4   4

                         CORRECTNESS OF CONSECUTIVE BRICK COURSES:                      1

                              NO              ASSESSMENT CRITERIA                  MARK
                               1   Correctness of consecutive brick courses:        1
                                    delete row
                               2   First course: Stretcher bricks                   2
                                   : delete row
                               3   Second course: Stretcher bricks                  1
                               4   Header bricks                                    2
                                                                     TOTAL:         6                 (6)
                                                                                                      [30]

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Civil Technology: Civil Services               12                           DBE/November 2022
                                     NSC – Marking Guidelines

QUESTION 4: COLD AND HOT WATER SUPPLY, TOOLS, EQUIPMENT AND
            MATERIALS (SPECIFIC)

4.1        4.1.1     E

           4.1.2     K

           4.1.3     G

           4.1.4     F

           4.1.5     B

           4.1.6     D

           4.1.7     L

           4.1.8     H                                                                            (8)

4.2        4.2.1        Y-waste junction with inspection eye                                      (1)

           4.2.2        To connect three pipes of the same diameter at an angle of
                        135°/To connect soil pipes at an angle.                                   (1)

           4.2.3        To ensure a watertight seal around the pipe.                              (1)

4.3        4.3.1        Rodding eye/RE                                                            (1)

           4.3.2        Drain-cleaning machine/Jetting machine                                    (1)

           4.3.3        By using hot water and cleaning agent/detergent/A hose with a
                        special nozzle that releases water at a high pressure is pushed into
                        a pipe.                                                                   (1)

           4.3.4        The stopper diameter increases when turned.                               (1)

4.4               Water pressure testing pump is used for pressure testing of water
                   systems. 
                  Compressed-air test apparatus is used to inspect for leakages in
                   sewerage systems.                                                              (2)

4.5        An air-lock occurs when there is an interruption in the water supply when air
           gets trapped in a high point of the hot-water system.                                  (2)

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Civil Technology: Civil Services                      13                          DBE/November 2022
                                            NSC – Marking Guidelines

4.6        4.6.1                                            
                                                                                                           (2)

           4.6.2
                                                                                                         (2)

4.7        4.7.1                  Solar panels must face North. 
                                  Panels facing North will be exposed to direct sunlight for the
                                   longest part of the day in the Southern hemisphere.                    (2)

           4.7.2                                        2
                                                                               OUTER GLASS TUBE

                                                                               RADIATION ABSORBING
                                                                               COATING 5
                                                    4
                                                                               FLUID TUBE

                                                            3
                                                                           INNER GLASS TUBE
                                                            

                        CORRECTNESS OF EVACUATED TUBE:                     1

                                       NO            ASSESSMENT CRITERIA          MARK
                                        1      Correctness of evacuated tube:       1
                                        2      Outer glass tube                     1
                                        3      Inner glass tube                     1
                                        4      Fluid tube                           1
                                        5      Label: Radiation absorbing
                                               coating                              1
                                                                       TOTAL:       5
                                                                                                           (5)

4.8        4.8.1        Non-return valve                                                                  (1)

           4.8.2        Locking valve                                                                     (1)

           4.8.3        Water can only flow in one direction  When the water starts
                        flowing back the lock valve closes on its seating immediately.                   (3)

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Civil Technology: Civil Services                     14                               DBE/November 2022
                                           NSC – Marking Guidelines

4.9                                                            HOT-WATER
                                                               OUTLET
                                                                          3       5

                                                     GEYSER
                     4

                         2
                                   COLD- WATER INLET

                                                        DRIP TRAY
           CORRECTNESS OF COLD-AND HOT-WATER PIPES:                           1

                               NO                 ASSESSMENT CRITERIA                   MARK
                                   1     Correctness of cold and hot-water pipes          1
                                   2     Cold water inlet Spelling differ from            1
                                         above
                                   3     Hot water outlet                                 1
                                   4     Direction cold water                             1
                                   5     Direction hot water                              1
                                                                             TOTAL:       5
                                                              OR
                                                                      HOT-WATER
                                                                      OUTLET

                                                       GEYSER

                                       COLD- WATER INLET

                                                          DRIP TRAY

                                                         OR

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Civil Technology: Civil Services                15                       DBE/November 2022
                                      NSC – Marking Guidelines

                                                             HOT-WATER
                                                             OUTLET

                                                  GEYSER

                                   COLD-WATER INLET

                                                     DRIP TRAY
                                                                                               (5)
                                                                                               [40]

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Civil Technology: Civil Services              16                            DBE/November 2022
                                    NSC – Marking Guidelines

QUESTION 5: GRAPHICS AS MEANS OF COMMUNICATION, ROOF WORK AND
            STORM WATER (SPECIFIC)

5.1        Flashing can be used:
            At the junction of a roof and a wall (parapet wall) that extends above the
              roof 
            Where a pipe protrudes through the roof covering 
            At the junction of a chimney and the roof covering
            Where two parts of a roof meet (valley/ridge)
              ANY TWO OF THE ABOVE                                                                 (2)

5.2        5.2.1      Gutter outlet/Outlet                                                        (1)
           5.2.2      It allows/channels water to flow from the gutter through to the
                      downpipe.                                                                   (1)
           5.2.3      The union clip is used to join two gutters/Prevent leaks where
                      gutters are joined.                                                         (1)
           5.2.4      PVC/Polyvinyl Chloride                                                      (1)

5.3        Dangerous chemicals and solid waste should not be dumped into the storm
           water system because:
            Water will be contaminated 
            The system will be under strain because of the solid waste 
            Overflows and flooding can occur
            Can result in blockages of the storm water pipes
             ANY TWO OF THE ABOVE                                                                  (2)

5.4        The municipality is responsible for:
            Cleaning storm water systems 
            Maintaining storm water systems 
            Upgrading storm water systems
            The installation of storm water systems
             ANY TWO OF THE ABOVE                                                                  (2)

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Civil Technology: Civil Services                         17                                        DBE/November 2022
                                               NSC – Marking Guidelines

5.5
                         5
        7
                                               5
                         6

                             6

                                                                         5

                                   6

                                       4
                     2

                             2                     6                         5   4

                                           3
                                                        6

                                                                   5

                                               7

                                                               3

                                                                       NOT TO SCALE
                                                   A
                                                                       USE A MASK TO MARK THIS
                                                           3
                                                                       QUESTION

                                                                             CORRECTNESS OF DRAWING:               1

                                                       NO            ASSESSMENT CRITERIA           MARK
                                                        1          Correctness of development        1
                                                        2          Projection lines to determine     2
                                                                   the apex
                                                       3           Determine the true length         3
                                                       4           Top and bottom arc of pyramid     2

                                                       5           Development of base of the        5
                                                                   pyramid
                                                       6           Development of top of the         5
                                                                   pyramid
                                                       7           3 mm seams on both sides           2
                                                                                         TOTAL:      20                     [30]
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Civil Technology: Civil Services               18                         DBE/November 2022
                                     NSC – Marking Guidelines

QUESTION 6: SEWERAGE, SANITARY FITTINGS AND JOINING (SPECIFIC)

6.1        6.1.1        A                                                                        (1)

           6.1.2        D                                                                        (1)

           6.1.3        D                                                                        (1)

           6.1.4        C                                                                        (1)

           6.1.5        B                                                                        (1)

6.2        Sewerage – a system of pipes and channels that carry sewage. 
           Sewage – is water that contains urine, faecal matter and other
           contaminants.                                                                         (2)

6.3        6.3.1        Straight pan collar/Pan collar                                           (1)

           6.3.2        Water closet pan/Toilet pan                                              (1)

           6.3.3        110 mm pipe/Soil pipe                                                    (1)

6.4        The vent valve:
            Allows gases that are present in the drain pipeline to be released into the
             environment 
            Allows air into the system so that water can flow freely 
            Ensures that the drainage system is vented to prevent anti-siphoning
             ANY TWO OF THE ABOVE                                                                 (2)

6.5        6.5.1        Vacuum tank /Conservancy tank                                            (1)

           6.5.2        The vacuum tank can be made of:
                         Brick 
                         Concrete 
                         Plastic                                                                 (2)
                          ANY TWO OF THE ABOVE

           6.5.3        Suction pipe /Draw off valve                                             (1)

           6.5.4        The purpose of A is:
                          To connect the pump attachment 
                                                                                                  (2)
                          To remove/suck the content from the vacuum tank 

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Civil Technology: Civil Services              19                         DBE/November 2022
                                    NSC – Marking Guidelines

           6.5.5       The tank will be installed on a residential property:
                        Where there is no waterborne sewerage system 
                        Where there is no municipal service 
                        Where pollution of ground water is at risk
                        For the disposal of human waste/To channel wastewater away
                         from a residential property                                            (2)
                       ANY TWO OF THE ABOVE

6.6        Water is chemically treated and chlorine is added.                                 (2)

6.7        6.7.1        The bedding mortar supports the bath unit to prevent cracking or
                        breakage when in use.                                                  (1)

           6.7.2        Combined bath and trap overflow/P-trap/Water trap                      (1)

           6.7.3        40 mm or 50 mm pipe                                                    (1)

           6.7.4        The overflow pipe allows water to exit./Prevent the water in the
                        bath from overflowing.                                                 (1)

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Civil Technology: Civil Services 20
                                     hlayiso.com
                                               DBE/November 2022
                                        NSC – Marking Guidelines

ANSWER SHEET 6.8
                                                                                     7

                                                                                 R.E
                                                 8
               7
                                                I.E        2
            R.E                                                                          THE CURVE CAN BE
                                        4                                    3           REPLACED WITH A
                                            5
                                   VP                                                    45°LINE

                                                           I.E
                                                                                         SEPARATE
                                                           I.E       8           2       BRANCH PIPES
                                                                                         MAY BE DRAWN
                                                                                         FROM EACH
                                                           I.E                           SANITARY FITMENT

                                                                         4

                                                                                 I.E

                                                                 6
                                                          G

                                                                         4

                                                                                 I.E

                                                                                     9
CORRECTNESS OF DRAINAGE LAYOUT:                       1
                                                                                     M.H
 NO                ASSESSMENT CRITERIA                    MARK
  1    Correctness of drainage layout                      1
  2    Main sewer lines                                    2
  3    45° junction of 2 main sewer lines                  1                         MUNICIPAL CONNECTION
  4    Branch pipes                                        3
  5    Vent pipe                                           1
  6    Gully                                               1
  7    Rodding eyes (ANY TWO)                              2
  8    Inspection eyes (ANY TWO)                           2
  9    Manhole/Rodding eye near Municipal
                                                           1
       connection
                                       TOTAL:              14
                                                                                                            [40]

                                                                                                TOTAL:      200

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