Engineering Science NCV Level 3 — Document
November 2019 — NCV Level 3 — Engineering Science
NCV Level 3
2019
NCV Engineering
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Q1— Section header —
1.10in the ANSWER BOOK.
1.1elding symbol parts consist of certain elements like the arro w. A welding symbol can also indicate certain process information. Which ONE of the following types of
1.2ferrous metal. Copper Wrought iron
1.3Which marking off tool may be used to draw a line parallel to the edge of a plate, without the support of any other tool? Prick punch
1.445 30
1.5ONE component of the center head. engineer square. tape measure. scriber.
1.6Identify the marking media tha t will be applied to rough steel structures. Copper sulphate White wash/chalk Marking blue
1.7gusset connect and strengthen structural steel members.
1.8GTAW. AW. GMAW. GAW.
1.9
1.10The following drawing illustrate a certain drawing layout method. Identify the layout method. Parallel line method
Q2— Section header —
2.1Structural steel sections are formed by means of the following two processes: ot rolled and old formed processes.
2.2A water cooler must never be connected to a GMA W system.
2.3An overhead traveling crane can be operated by means of a remote control.
2.48
Q3— Section header —
3.1FIGURE 1 indicates a weld symbol with indication s of specific welding information. Write the answer next to the question number (3.1.1
3.1.5
3.2Draw a neat drawing of a weld symbol and add the following basic and supplementary welding symbols to the drawing of the weld symbol. Ensure that the symbols are placed in the correct posi tions. Write the question
3.2.3\next to the indications of the welding symbols in the ANSWER BOOK.
3.2.311
4.1Draw neat drawing s illustrating the following utt joints. Also indicate the position of the bead.
4.1.2
4.2Draw neat drawings illustrating the following co rner joints. Also indicate the pos ition of the bead.
4.2.2
4.3Explain the reason why each type of shielding gas must use its own flow meter. (2\
4.4
4.5
4.6Explain ONE negative result the following welding defects have on a weld:
4.6.1
4.6.3
4.7State the type of injury that might happen if a welding helmet is not used properly during welding. (1\ [27] (6031013\ Copyright reserved27
Q5— Section header —
5.1FIGURE 2 indicate a round tank, fabricated fr om 12 mm hot rolled sheet. The tank is sealed with a top lid and a bottom base. Take note that the measurements indicated are outside measurements. Calculate the
5.3FIGURE 3 illustrate a specific reading on a ernier calliper. Study the sketch and identify the reading as illustrated. FIGURE 3 (3\ (6031013\
5.3FIGURE 4 ill ustrate itched roof truss. Calculate the length of the rafter, given that the ingpost height is 2 340 mm
5.4Which type of crane will normally be used in a fabricating workshop? (1\
5.5State TWO advantages of an overhead electric travelling crane that is operated by a remote control. (2\
5.6The following pictures indicate TWO different hand signals used during rigging work. Write only the name and the meaning of the hand signals next to the question numbers (5.6.1
5.6.2\the ANSWER BOOK.
5.6.2(2 1\ (2\
5.7List THREE typical main components of a pressure vessel. (3\ [22] (6031013\ Copyright reserved Please turn over22
Q6— Section header —
6.1FIGURE 5 illustrate a frame, manufactured from 16 mm quare bar. Calculate the total length of material needed to manufac ture the frame. Give the answer in millimetres and round off to three decimals. P
6.2FIGURE 6 illustrate the front and top views of a square cone. Re draw the drawin g according to cale 1:1 in your ANSWER BOOK and
Topics Identified
1
Construction
Mark Allocation
Sections10 + 8 + 11 + 27 + 22 = 78 marks
Paper information
TitleDocument
SubjectEngineering Science
LevelNCV Level 3
Document typeQuestion paper
Year2019
MonthNovember
Pages10
Downloads5
Examination context
Decade2010s
Years ago7y
SeasonSpring (SH)
Start dayFriday
Exam periodNovember 2019
Days since exam2,536
About Engineering Science examination preparation
Engineering Science combines physics principles with engineering applications. The examination covers mechanics, thermodynamics, electricity, and materials science at the relevant N-level.
How to use this resource for revision
A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?
For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.
applying physics principles
selecting appropriate formulae
performing calculations with units
interpreting engineering scenarios
explaining scientific reasoning
A practical revision approach
Create a formula sheet organised by topic. The memorandum rewards correct formula identification, proper substitution, and accurate unit handling — always write the formula before substituting values.
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