Engineering Science NCV Level 3 — Document
February 2020 — NCV Level 3 — Engineering Science
NCV Level 3
2020
NCV Engineering
Preparing document
📋 Document Analysis
See full analysis
Questions — A Preview of What to Expect in the Document
56
This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.
Q1— Section header —
1.18\in the ANSWER BOOK.
1.1A/An blast cupola electric Bess
1.2
1.3to enter the reservoir tank. air valve safety valve check valve
1.4be used to determine whether a vertical surface is plumb
1.5out of the nozzle at high speed while a t the same time an electrical arc is formed through the gas fro m the nozzle to the surfac e being cut.
1.6liquid. slag. vapour. gas. (6031023\
1.7is added to the acetylene in a cylinder to absorb the acetylene which enlarges the compression inside the cylinder. Oxygen
1.8weld is made when two pieces join in the form of a T butt
1.9An acetylene cylinder is made of 5 mm steel and can withstand a pr essure of ar.
1.10commonly used to weld thin sections of stainless steel and light metals such as aluminium , magnesium and copper alloys. GMAW
1.11cavities or voids within a weld bead. penet ration with insufficient fusion fusio
1.12undercutting during a weld process. Gas contamination Gun angle Too large weld puddle
1.13zoned control radiant
1.14Figure an expansion joint symbol related to an HVAC system.
1.15/An is installed at the outlet of a ventilation system normally at t he end of intermediate areas.
1.16An unsafe act according to the OHS A ct
1.17A crane driver should not switch off the machine or allow it to stall with a load in suspension. keep his/her eyes on the load. always examine the ropes and slings at the start of a shift. ensur
1.18The hand signal for travel Arm extended, hand open, wave fore arm in the direction of motion
Q2— Section header —
2.9\in the ANSWER BOOK. ive reason for each answer.
2.1Do not grip the handle of a hammer too close to the head.
2.2Open ended spanners have weak jaws, so it should not be used on very ti ght nuts or bolts.
2.3edestal drilli ng machine can drill diagonal/ inclined holes in a work piece.
2.4centre punch is used to punch holes to assist with drilling work.
2.5dd leg calliper can be used to scribe a line parallel to the refe rence face.
2.6If the end hook of a tape measure is loose, the tape measure is broken.
2.7The circumference of an o blique round pipe ca n be calculated by the formula
2.8The common central sphere construction forms part of the connection between a right cone and a cylindrical pipe.
2.918
Q3— Section header —
3.1Give the purpose of adding each of the following elements to the furnace mixture during the melting process in iron manufacturing:
3.1.1Coke
3.1.2
3.2Give the carb on content range of each of the following metals , for example
3.2.1Carbon steel
3.2.2
3.3Give TWO examples of each of the following groups of materials:
3.3.1Ferrous metals
3.3.2Non ferr ous metals
3.3.3
3.4List FOUR safety precautions to take when using shaping machines. (4\
3.5Name FIVE resources, pieces of equipment or needs of which the location must be known in case of emergency. (5\
3.6Give THREE methods to avoid hazardous fume vapours of metals and fluxes in a welding bay. (3\
3.7List FOUR types of cracks that might appear during or after welding. (4\
3.8
3.9List THREE types of heating, ventilation and air condition (HVAC\ drawings or orientations (3\
3.10List the FOUR main hazard categories of accidents involving hands and arms (4\
3.11
3.12Give the meaning of the abbreviation WLL related to lifting chains (1\ [46]46
Q4— Section header —
4.1A half roof truss has the following measurements: Run distance: 3,124 m Rise distanc e: 2,341 m Use the theorem of Pythagoras to calculate the length of the rafter. Round off
4.2FIGURE 1 Calculate the area of FIGURE 1. Sizes indicated are in meters. Ro und off the answer to THREE decimals and
4.3FIGURE 2 shows a lobster back bend with the centre face distance and pipe diameter. FIGURE 2
Q4— Section header —
Topics Identified
1
Construction
Mark Allocation
Total100 marks
Sections18 + 18 + 46 + 18 = 100 marks
Paper information
TitleDocument
SubjectEngineering Science
LevelNCV Level 3
Document typeQuestion paper
Year2020
MonthFebruary
Pages9
Downloads4
Examination context
Decade2020s
Years ago6y
SeasonSummer (SH)
Start daySaturday
Exam periodFebruary 2020
Days since exam2,443
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.
File details
File size339.9 KB
Pages9
Archived on8 September 2026
File age45d
ContributorFreeMode
Fingerprint09E01503CD9D
Questions and learner discussion
Log in to ask a question or leave a review.
No questions or discussions have been posted yet.