Engineering Science N1 — Document
November 2022 — N1 — Engineering Science
N1
2022
Nated Engineering
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Q1— Section header —
1.1Which of ONE the following is not a scalar quantity? Velocity
1.2What is t he magnitude of the resultant of the vectors shown below 20
1.3Which unit is used for measuring electrical current
1.4What is the work done by gravity if a 50 kg block is pushed along a 40 m track? 392
1.5The way heat moves from hot coffee to cold milk is called ...
Q2— Section header —
2.5\n the ANSWER BOOK.
2.1The force of gravity acts only while objects are moving downwards.
2.2An electron is the smallest part of an element
2.3Displacement gives the shortest distance between the initial and final positions of an object.
2.4An insulator conduct electricity very well.
2.55
Q3— Section header —
3.5\in the ANSWER BOOK. COLUMN A COLUMN B
3.5orce with which the earth attracts an object esisting power of a specified material mallest part into which a substance can be
Q4— Section header —
4.5\n the ANSWER BOOK. inetic energy; esultant; peed; Joule's aw;
4.1Influence which , when applied to a body will change or tend to change the state of rest or uniform motion in a straight line
4.2Rate of change of displacement
4.3eat generated in an electrical circuit proportional to the square of the current, the resistance and the time the current flows
4.4
4.55
Q5— Section header —
5.1
5.1.1
5.1.2
5.2Danny drops a rock from the edge of a cliff t takes 4 seconds for the rock to hit the bottom of the cliff.
5.2.1Draw a neat labelled velocity/time graph of the movement of the rock. HINT: Use scale 9,8 m/s = 10 mm and 1 second = 20 mm (3\
5.2.2Use the graph to determine the slope of the graph (1\ [9] 75 m 56 m 150703919
Q6— Section header —
6.1FIGURE 2 shows a shop sign that is suspended by two ropes. FIGURE
6.1.1Draw , not to scale, a space diagram of the sign and the two ropes. (2\
6.1.2Use the triangle of forces method to determine the unknown forces in the ropes. (3\ 15070391
6.2FIGURE 3 shows t wo forces (X and Z\ that are working in on a body and balanced by a third force (E\ FIGURE Determine the value of the unknown force Z by using the parallelogram of forces method.
6.3A wheel and axle lifting machine is used to lift a load of 1 560 N. The diameter of the wheel is 320 mm and the diameter of the axle is 64 mm. The effort needed to lift the load is 390 N
6.3.1Draw a neat labelled sketch of the wheel and axle lifting machine. (3\
6.3.2Calculate the mechanical advantage of the machine. (2\
6.3.3Calculate the velocity ratio of the machine. (2\
6.4A torque spanner with a length of 650 mm is used to tighten a nut. The nut needs to be torqued to a value 494 Nm. Calculate the force needed to torque the nut. (2\ [17]17
Q7— Section header —
7.1A crane hoists a mass of 250 kg vertical ly upwards to a height of 15 m.
7.1.1Draw a neat labelled force/displacement graph of the movement. HINT: Use a scale of 000 N = 3
7.1.2Calculate the work done from the graph. (2\
7.2A motor vehicle travels at a constant speed of 100 km/h. o keep the speed constant a force of 2,85 kN must be applied. Calculate:
7.2.1The speed of the vehicle in m/s (1\
7.2.2The power to maintain the speed (2\ [8]8
Q8— Section header —
8.1Give TWO advantages of a mercury thermometer. (2\
8.2
8.2.1Calculate the difference in temperature. (1\
8.2.2Calculate the heat energy required for the temperature increase. (2\
8.3Explain the working principle of bimetallic strip. (2\
8.4
8.4.1Calculate the difference in temperature. (1\
8.4.2Calculate the final length of cable in meters. (2\
8.5Explain the working principle of a thermocouple. (2\ 15070391 10
8.6Explain how heat is propagated in each of the following materials
8.6.1Steel
8.6.2
8.7Give ONE example of each of the following effects that heat can have on different materials:
8.7.1Change in colour
8.7.216
Q9— Section header —
9.1Explain the movement of matter particles in each of the following phases of matter
9.1.1Gas phase
9.1.2
9.2Give ONE term for each of the following descriptions by writing it next to the question number (
9.2.2\n the ANSWER BOOK.
9.2.1Smallest part of an element
9.2.2
9.3Draw a neat labelled sketch of an atom. (4\
9.4Write down the charges of each of the following parts of an atom
9.4.1Electron
9.4.210
Q10— Section header —
10.1Identify each of the following IEC circuit symbols
10.1.3
10.2FIGURE shows three resistors connected in parallel over a 12 V power supply. FIGURE
10.2.1Calculate the total resistance of the circuit. (2\
10.2.2Calculate the total current of the circuit. (2\
10.3What will happen to the resistance of each of the following materials if the temperature is reduced?
10.3.1Insulators like PVC
10.3.2
10.4List THREE factors that determine the resistance of a material. (3\ 15070391 12
10.5A steam iron is connected to a 220 V supply f a current of 12 A is flowing through the steam iron, calculate the amount of heat energy generated in 6 minutes. (2\
10.6Draw a neat labelled sketch of the magnetic field around a current carrying conductor.
10.7The following is printed on an electrical kettle: 200 W; 230 V Calculate the current flowing through the kettle. (2\
10.8Give ONE practical application for an electromagnet. [2 TOTAL SECTION B:
Mark Allocation
Total100 marks
Sections5 + 5 + 5 + 9 + 17 + 8 + 16 + 10 = 75 marks
Paper information
TitleDocument
SubjectEngineering Science
LevelN1
Document typeQuestion paper
Year2022
MonthNovember
Pages13
Downloads3
Examination context
Decade2020s
Years ago4y
SeasonSpring (SH)
Start dayTuesday
Exam periodNovember 2022
Days since exam1,439
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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File size354.5 KB
Pages13
Archived on8 September 2026
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