Hotel Service Unit 5 Q5 Quiz

Correct Answer:
B) To ensure sufficient air is entering the engine for efficient combustion

Explanation:
Inlet manifold air pressure is crucial for ensuring that enough air enters the engine for efficient combustion. A proper air-fuel mixture is necessary to achieve optimal engine performance and fuel efficiency.

Correct Answer:
A) Clogged air filters or a malfunctioning turbocharger

Explanation:
A low inlet manifold air pressure could result from clogged air filters or a malfunctioning turbocharger, both of which restrict the airflow into the engine. This leads to poor combustion and reduced engine performance.

Correct Answer:
B) To ensure there is adequate oil for proper engine lubrication and prevent engine damage

Explanation:
The LO sump level is essential for engine lubrication. Without sufficient oil, friction between engine components increases, leading to excessive wear and possible engine damage. Recording the LO sump level ensures proper lubrication is maintained.

Correct Answer:
A) To ensure the engine is being properly cooled and prevent overheating

Explanation:
Cooling water inlet temperature is recorded to ensure the engine is being cooled effectively. If the cooling water is too hot or too cold, it can lead to inefficient engine cooling and potential overheating or thermal stress.

Correct Answer:
B) Oil dilution due to water or fuel contamination

Explanation:
If the LO sump level is too high, it could indicate contamination of the oil with water or fuel, which reduces the oil’s effectiveness as a lubricant and can cause serious engine damage if not corrected.

Correct Answer:
B) A blockage or malfunction in the cooling system, such as a fouled heat exchanger or reduced water flow

Explanation:
A high cooling water inlet temperature may indicate a problem with the cooling system, such as a blockage in the heat exchanger or reduced water flow, which can lead to inefficient cooling and engine overheating.

Correct Answer:
A) Oil leaks or excessive oil consumption

Explanation:
A low LO sump level could be due to an oil leak or excessive consumption of oil by the engine. This can lead to insufficient lubrication, increasing the risk of engine damage or overheating.