Engineering Science N5 — Document
November 2022 — N5 — Engineering Science
N5
2022
Nated Engineering
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Q1— Section header —
1.1Indicate whether the following statements are TRUE or FALSE by writing only 'True' or 'F alse' next to the question number (1.1.1
1.1.5\in the ANSWER BOOK.
1.1.1Period of a wave is the number of vibration in one second
1.1.2Standing waves are formed when a wave does not move forward through a medium but reflected as much as it is transmitted so that the total movement of the wave is zero
1.1.3A sugar solution will diffuse more rapidly than the same concentration of starch at the same te mperature
1.1.4The diameter of solenoid does not affect the magnetic flux density inside the solenoid
1.1.5
1.2Explain the following terms
1.2.1Charle s' s law (2\
1.2.2Cohesion (1\
1.2.3Diffusion (2\
1.2.4The law of refraction (2\
1.3Give the SI unit of the following
1.3.1Intensity of light
1.3.2Electrical energy
1.3.3
1.4Name ONE use of each of the following
1.4.1Diffusing grating
1.4.2Magnetometer
1.4.3Tourmaline crystal
1.4.4
1.5Give ONE suitable example of each of the following
1.5.1Artificial source of light
1.5.2The total reflection that cause light to turn through 180
1.5.3
1.6Find the intensity of a source of light 20 m from a surface on which the illumination intensity is 1 000 lux (3\ [25]25
Q2— Section header —
2.1Choose a term from COLUMN B that matches a description in COLUMN A. Write only the letter (A E\next to the question number (2.1.1
2.1.5\in the ANSWER BOOK. COLUMN A COLUMN B
2.1.5Boyle s apparatus Slip rings Farsightedness Three images Current size
2.2Name THREE things that occur when light strikes surface (3\
2.3Given:
2.3.1(4\
2.3.2Calculate h if T = 3 kg /m (3\
2.4Make a neat labelled sketch of diffraction with light (3\
2.5Two similar balls with a mass of 4 kg and a force of 2 MN attract each other. Find the distance between them (4\
2.6Calculate the magnetic flux density at the point P which is 90 mm from a straight wire through which a current of 12 A is flowing (3\ [25]25
Q3— Section header —
3.1An object is placed at a distance of 250 mm from a concave mirror with a focal length of 125 mm. Find the following:
3.1.1Position of the image (2\
3.1.2Nature of the image (2\
3.1.3Size of the image formed if the height of the object is 50 mm (3\
3.2A container has a volume of 0 08 gas at 1
3.3A cylinder contains 0 44 gas at a pressure of 3 kPa and a temperature of 46 C. The gas is compressed adiabatically to three quarter of the original
3.3.1The value of the compression coefficient (2\
3.3.2The original volume of the gas (3\
3.3.3The final pressure of the gas (3\
3.3.4The final temperature of the gas (2\
3.3.5Root mean square velocity of the gas molecules at the final stage (3\
3.4Illustrate osmotic pressure with the aid of diagram using sugar solution and semi permeable membrane
Q4— Section header —
4.1Calculate the kinetic energy of a lead bullet with a mass of 40 g travelling at a speed of 300 m/s (3\
4.2Make a neat labelled sketch of the human eye (7\
4.3A transformer has 3 000 turns at the primary side and 500 turns on the secondary side. The supply voltage is 120 Calculate the following:
4.3.1Secondary voltage
4.3.2Secondary current if the primary current is 3 A
4.3.3
4.4A wire of m long carries a current of 10 in a magnetic field with a flux density of 1
4.5Calculate the frequency of the fundamental as well as the fir st overtone of an open tube at 28 C, if the tube is 550 mm long. Hint: In the tube, the antinode is always at the open end of the tube At
Multiple Choice Options
2C)Calculate the
C)The gas is compressed adiabatically to three quarter
Mark Allocation
Total100 marks
Sections25 + 25 + 25 + 25 = 100 marks
Paper information
TitleDocument
SubjectEngineering Science
LevelN5
Document typeQuestion paper
Year2022
MonthNovember
Pages9
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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