Engineering Science N2 — Document
November 2022 — N2 — Engineering Science
N2
2022
Nated Engineering
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4.1The formula used or the manipulation thereof
4.2The substitution of the given data in the formula
4.3ound off your answer to three decimal places where applicable .4 Include the
Q1— Section header —
1.1Convert 0,002 m to cm. (1\
1.2A man runs for 6 km d irectly east until he gets to a T junction where he turns around and run another 8 km directly west. Determine
1.2.1otal displacement of the man (2\
1.2.2ve rage speed of the man if he takes 47 minutes to complete the exercise . Give the answer in km/h (2\
1.3A motor car travels at a constant velocity of 10 m/s for 15 seconds and then accelerates at 0,5 m/s for 10 seconds.
1.3.1Calculate the final velocity of the motor car. (2\
1.3.2Make a neat labelled sketch of the velocity time graph for this motion. (3\
1.4Determine from the graph
Q1— Section header —
Q2— Section header —
2.1State the law of moments. (2\
2.2The horizontal beam shown in the diagram, rests on two supports A and B.
2.2.1Determine the reaction of both supports by taking moments about each support Ignore the weight of the beam (6\ 15070402
2.2.2Test the answers of
Q2— Section header —
2.3Give ONE example of couples. (1\ [10]10
Q3— Section header —
3.1Define the term otential energy. (2\
3.2A lorry with a mass of 3 tons travels at 92 km/h on a horizontal plane. Calculate the following:
3.2.1inetic energy of the lorry (2\
3.2.2omentum of the lorry (1\
3.3Determine to what height the load of 25 kg can be lifted, when 10 kJ of energy is used. (2\ [7]7
Q4— Section header —
4.1Define the SI unit oule. (1\
4.2A chain that is 50 m long with a w eight of 160 N/m will be wound around drum that is 50 m above the ground.
4.2.1Draw a force distance graph for the chain when it is wound onto the
4.2.2Calculate the work done to wound the 50 m chain on to the drum. (2\
4.2.3Calculate the power required to pull the full length of the chain if it takes 2 minutes to complete the task.
4.3Calculate the diameter of a pulley if an effective force of 130 N exerts a torque of 10, 5 Nm on the pulley. (3\ [10]10
Q5— Section header —
5.1Name TWO disadvantages of gear drives. (2\
5.2Name the gear that ensures that the driver and the driven gears rotate in the same direction. (1\ 15070402
5.3Three gears , A, B and C engage and have 70, 130 and 65 teeth respectively. Gear A rotates at 600 r ev /min. Calculate the rotational frequency of gear C in r ev /s.
5.4The driving pulley of the belt drive has a diameter of 130 mm and runs at 625 ev /min. he maximum allowable tension in the belt is 2 300 N and the tension ratio of the tight side to
5.4.1The belt velocity (3\
5.4.2The diameter of the driven pulley in mm, if it rotates at 15 r ev /s (2\
5.4.3Power transmitted (3\
5.5Make a neat labelled line sketch of a Weston pulley block lifting machine. (3\ [17]17
Q6— Section header —
6.1Name ONE application of friction in practice. (1\
6.2A body with a mass of 70 kg is pulled down an incline with an angle of to the horizontal. The frictional force against the motion is 00 N. Draw a neat sketch
Q6— Section header —
6.3The coefficient of friction (2\
6.3.2The component of the weight parallel to the plane (2\
6.3.3The force required to pull the body down the incline (2\ [9]9
Q7— Section header —
7.1Define the heat capacity of a substance (1\
7.2Name THREE forms in which fuels are found and give ONE example of each. (3\
7.3State THREE factors that influence the gain or loss of the heat energy of a substance. (3\
7.4Determine the amount of water in kg which cooled down from 15 C to 10 when 93 730 J of heat is released. (2\
7.5A copper wire with a length of 2,3 m is heated from 12 C to 33 C. Calculate the final length of the copper wire. (2\ [11]11
Q8— Section header —
8.1Define an ion (1\
8.2Name THREE fundamental constituents of an atom and their charges. (3\
8.3Explain why pure water does not conduct electricity (2\
8.4Give TWO practical examples where electrolytes are used. (2\ [8]8
Q9— Section header —
9.1Name TWO types of resistors that may be used in a circuit. (2\
9.2State Ohm's law. (2\
9.3Two resistors are connected in parallel and their total resistance is 2 Calculate the resistance of one resistor if the other one has a resistance of (3\
9.4Calculate the length of a copper conductor with a diameter of 1,3 mm and a C. (3\
9.5Draw a neat labelled sketch to demonstrate mutual induction by using soft iron rod (3\ [13] TOTAL:13
Mark Allocation
Total100 marks
Sections15 + 10 + 7 + 10 + 17 + 9 + 11 + 8 + 13 = 100 marks
Paper information
TitleDocument
SubjectEngineering Science
LevelN2
Document typeQuestion paper
Year2022
MonthNovember
Pages7
Downloads3
Examination context
Decade2020s
Years ago4y
SeasonSpring (SH)
Start dayTuesday
Exam periodNovember 2022
Days since exam1,438
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 size285 KB
Pages7
Archived on8 September 2026
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