FIGURE 5.1 below shows equipment that is used in the automotive workshop - NSC Mechanical Technology Automotive - Question 5 - 2018 - Paper 1
Question 5
FIGURE 5.1 below shows equipment that is used in the automotive workshop. Answer the questions that follow.
5.1.1 Identify the equipment in FIGURE 5.1.
5.1.2 Label... show full transcript
Worked Solution & Example Answer:FIGURE 5.1 below shows equipment that is used in the automotive workshop - NSC Mechanical Technology Automotive - Question 5 - 2018 - Paper 1
Step 1
5.1.1 Identify the equipment in FIGURE 5.1.
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Answer
The equipment in FIGURE 5.1 is a Compression Tester.
Step 2
5.1.2 Label parts A–D.
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Answer
A – Flexible piping / hose / tubing
B – Adaptor screw / Fitting / Attachment / Connector
C – Gauge
D – Pressure release valve
Step 3
5.1.3 Describe the purpose of the equipment?
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Answer
The purpose of the Compression Tester is to measure the pressure created when the piston is at top dead center on the power stroke.
Step 4
5.2 What is the function of the cylinder leakage tester?
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The function of the cylinder leakage tester is to check whether the engine leaks gases from the cylinder during the compression stroke.
Step 5
5.3 A gas analyser is used to analyse the exhaust gases of a motor vehicle. Give ONE reason why it is important to make sure that there are no leakages in the exhaust pipe.
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It is important to ensure an accurate reading from the gas analyser.
Step 6
5.4 State ONE function of a computerised diagnostic scanner.
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A function of a computerised diagnostic scanner is to scan all systems on the vehicle.
Step 7
5.5 Explain the procedure to follow when checking the camber using a bubble gauge.
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Answer
To check the camber using a bubble gauge, first mount the bubble gauge on the straightened wheel. Zero the bubble gauge at the gauge zero scale, then take the reading on the camber scale. Repeat the process for the other wheel.
Step 8
5.6 Name THREE faults that can be established when performing dynamic wheel balancing.
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The plane of imbalance
The extent of the unbalancing forces
The location of weight placement
Step 9
5.7 What is the purpose of the turn-tables used to adjust the wheel alignment on a motor vehicle?
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The purpose of the turn-tables is to allow the wheels to turn in or out to check the wheel angles.
