3.1 Give TWO reasons for conducting a bending test on a roof beam - NSC Mechanical Technology Welding and Metalwork - 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 Welding and Metalwork - 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, which ensures structural integrity under load.
To determine if the beam is capable of supporting the required 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
Incorrect fuel mixture settings, which can lead to inefficient combustion.
Faulty components like the air filter or fuel injectors that cause improper air-fuel ratios.
Step 3
State TWO advantages of the MIG/MAGS welding process.
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Answer
The capability to weld in any position, providing versatility in various applications.
Less skilled operator is required, which can reduce training costs and time.
Step 4
Name TWO tests that can be done with a multimeter.
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Answer
Measuring DC voltage to check battery levels or circuit operation.
Testing resistance to identify shorts or open circuits in electrical components.
Step 5
Due to engine power loss in a vehicle the mechanic conducts a compression test according to certain procedures. Why are the procedures below followed?
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Answer
The procedures are followed to ensure accuracy and safety during testing. Removing the high-tension lead prevents electric shocks and prevents the engine from starting. Unplugging the fuel-injection system stops fuel delivery, which can be hazardous. Opening the throttle valve fully allows for maximum airflow during the test, ensuring peak engine performance assessment. Recording the readings provides data for evaluating engine health.
