Hotel Service Unit 5 Q4 Quiz

Correct Answer:
A) To monitor the oil’s viscosity and ensure proper engine lubrication

Explanation:
Lubricating oil temperature affects its viscosity. If the temperature is too high or too low, the oil may not lubricate the engine components properly, leading to increased wear and potential engine damage.

Correct Answer:
B) Engine overheating, potential damage to exhaust components, and reduced engine performance

Explanation:
High exhaust temperatures can lead to overheating, damage to the turbocharger and exhaust valves, and reduced engine efficiency. This can eventually cause serious engine failures if not corrected.

Correct Answer:
A) Reduced engine efficiency and increased wear due to improper lubrication

Explanation:
If the lubricating oil temperature is too high, the oil may lose viscosity, leading to inadequate lubrication and increased engine wear. If the temperature is too low, the oil may thicken, also causing poor lubrication and increased friction.

Correct Answer:
B) To monitor engine performance and detect possible issues such as poor combustion or turbocharger inefficiency

Explanation:
Recording exhaust temperatures helps monitor engine performance. Significant deviations in temperature may indicate problems such as poor combustion, a malfunctioning turbocharger, or blocked exhaust passages.

Correct Answer:
B) To ensure the engine is being cooled effectively and prevent overheating

Explanation:
Recording cooling water inlet and outlet temperatures ensures that the engine is being properly cooled. Any abnormalities in these temperatures can indicate cooling system problems, leading to engine overheating if not addressed.

Correct Answer:
B) Overheating or insufficient cooling, leading to thermal stress and potential engine damage

Explanation:
If cooling water temperatures are too high, it can cause the engine to overheat. If they are too low, it can lead to thermal stress and uneven engine cooling. Both conditions can cause significant engine damage.