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 that the structure maintains integrity under load.
To verify that the beam is capable of supporting the intended load.
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 can result in incomplete combustion, increasing the carbon monoxide output.
A clogged air filter may restrict airflow, leading to a poor air-fuel mixture and higher CO readings.
Step 3
State TWO advantages of the MIG/MAGS welding process.
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Answer
MIG/MAGS welding can be performed in any position, enhancing versatility in various welding applications.
The process allows for long continuous welds without the need to stop, offering greater efficiency.
Step 4
Name TWO tests that can be done with a multimeter.
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Answer
DC current test to measure the flow of direct current in a circuit.
Voltage test to check the voltage levels across various components.
Step 5
Why are the procedures below followed?
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Answer
Removing the high-tension lead prevents electrical shock and damage to the ignition system during the test.
Unplugging the fuel-injection system avoids fuel delivery during the test, ensuring accurate compression readings.
Opening the throttle valve fully allows for maximum airflow, providing a true reading of the cylinder's performance.
Recording the readings allows for analysis and troubleshooting of the engine's power loss.
