3.1 Give TWO reasons for conducting a bending test on a roof beam - NSC Mechanical Technology Automotive - Question 3 - 2016 - Paper 1
Question 3
3.1 Give TWO reasons for conducting a bending test on a roof beam.
3.2 Give TWO reasons for a high CO reading when conducting a gas analysis test on the engine of a... show full transcript
Worked Solution & Example Answer:3.1 Give TWO reasons for conducting a bending test on a roof beam - NSC Mechanical Technology Automotive - Question 3 - 2016 - Paper 1
Step 1
Give TWO reasons for conducting a bending test on a roof beam.
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Answer
To investigate the deflection of beams, ensuring they can withstand the applied loads without excessive bending.
To check if the beam is capable of supporting the intended load safely.
Step 2
Give TWO reasons for a high CO reading when conducting a gas analysis test on the engine of a motor vehicle.
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Answer
A rich mixture setting may lead to incomplete combustion, resulting in elevated carbon monoxide levels in the exhaust.
Incorrect ignition timing can also contribute to high CO emissions, as it may cause fuel to not burn completely.
Step 3
State TWO advantages of the MIG/MAGS welding process.
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Answer
MIG/MAGS welding allows welding in any position, increasing versatility in various applications.
It provides a faster welding process compared to traditional methods, thus improving overall efficiency.
Step 4
Name TWO tests that can be done with a multimeter.
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Answer
DC voltage test to check the potential difference in a circuit.
Resistance test to measure how much the resistor impedes the flow of current.
Step 5
Why are the procedures below followed?
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Answer
Remove the high-tension lead to prevent any electrical shorts or hazards during testing.
Unplug the fuel-injection system to avoid fuel spray and ensure a safe environment.
Open the throttle valve fully to ensure proper airflow during the compression test.
Record the readings to analyze the engine's performance accurately.
