Aux 1 Unit 15 Q4

1 / 7

Why should the generator’s brushes and slip rings be inspected during routine maintenance?

C) To increase the generator's power output

D) To reduce the noise produced by the generator

A) To ensure the generator runs faster

B) To check for wear and ensure proper contact, preventing sparking and maintaining efficient power generation

2 / 7

Which maintenance task is important for ensuring the reliability of the generator's automatic voltage regulator (AVR)?

B) Testing and calibrating the AVR to ensure it maintains the correct voltage output under varying loads

C) Cleaning the generator’s exhaust system

A) Replacing the engine’s fuel filter

D) Replacing the generator's bearings

3 / 7

What is the purpose of performing insulation resistance tests on an a.c. generator set during routine maintenance?

D) To measure the frequency of the generator

B) To detect any deterioration or damage to the insulation of the generator’s windings, which could lead to electrical faults or failures

C) To check the oil level in the engine

A) To measure the generator’s voltage output

4 / 7

Why is it important to regularly check and clean the ventilation system of an a.c. generator set?

A) To reduce the generator's noise level

B) To prevent overheating and ensure proper cooling of the generator’s windings and other electrical components

C) To increase the generator's speed

D) To improve fuel efficiency

5 / 7

Why is it important to periodically test the generator under load during routine maintenance?

D) To improve the generator's appearance

A) To measure the generator's physical size

C) To reduce the generator’s fuel consumption

B) To verify the generator's performance and ensure that it can handle its rated load without any issues, such as voltage fluctuations or overheating

6 / 7

Which of the following is an essential routine maintenance task for the electrical side of an a.c. generator set?

D) Changing the engine oil

C) Inspecting and tightening all electrical connections to ensure they are secure and free from corrosion

B) Inspecting and cleaning the generator’s air filters

A) Checking the coolant level in the engine

7 / 7

What routine maintenance should be performed to check the condition of the generator's bearings?

B) Lubricate the bearings and check for excessive noise or vibration, which may indicate wear or failure

D) Test the generator’s fuel consumption rate

A) Measure the voltage output of the generator

C) Increase the generator’s operating speed

Your score is