4.1 What is the function of the pressure relief valve on the compression tester?
A - NSC Mechanical Technology Automotive - Question 4 - 2022 - Paper 1
Question 4
4.1 What is the function of the pressure relief valve on the compression tester?
A. Ensures that the tester's maximum pressure is not exceeded
B. Reveals the conditi... show full transcript
Worked Solution & Example Answer:4.1 What is the function of the pressure relief valve on the compression tester?
A - NSC Mechanical Technology Automotive - Question 4 - 2022 - Paper 1
Step 1
4.1 What is the function of the pressure relief valve on the compression tester?
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Answer
The correct answer is D. The pressure relief valve prevents a loss of pressure in the compression tester by allowing excess pressure to escape.
Step 2
4.2 While performing wheel balancing, the wheel weight hammer is used to...
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Answer
The correct answer is D. The wheel weight hammer is used to stop the wheel from spinning, allowing for accurate balance adjustments.
Step 3
4.4 With reference to a four-stroke four-cylinder engine, which cylinder is firing if the valves of cylinder 1 are rocking?
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Answer
The correct answer is B. If the valves of cylinder 1 are rocking, it indicates that cylinder 2 is currently firing due to the firing order of the engine.
Step 4
4.6 Which ONE of the following volumes represents a capacity of 1 litre?
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Answer
The correct answer is C. 1 000 cm³ represents 1 litre, as it is the equivalent volume.
Step 5
4.8 Which ONE of the following is a possible cause of low oil pressure in an engine?
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Answer
The correct answer is A. Blocked oil passages can restrict oil flow, leading to low oil pressure.
Step 6
4.9 During a cooling system pressure test, pressure is applied by ...
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Answer
The correct answer is D. A hydraulic pump is typically used to apply pressure during cooling system tests.
Step 7
4.10 Which ONE of the following is part of the automatic transmission gearbox?
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Answer
The correct answer is D. The stator is a component of the automatic transmission gearbox.
Step 8
4.12 Which component in an alternator is a rotating electromagnet?
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Answer
The correct answer is A. The rotor in an alternator acts as the rotating electromagnet.
Step 9
4.13 Identify wheel alignment angle W in FIGURE 4.13 below.
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Answer
The correct answer is A. The angle W refers to camber in the context of wheel alignment.
Step 10
4.14 Which ONE of the following is an air induction sensor?
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Answer
The correct answer is D. The MAP sensor is an air induction sensor used to measure manifold pressure.
