Class 4 (4th Engineer) MEKM 📅 Feb 2024

Exam Question

Explain how leakage of the undermentioned valves may become apparent to watchkeepers and state the effects on engine operation. Describe the immediate and subsequent action which might be necessary in each case.

(a) Exhaust valve

(b) Fuel valve

Reference Answer

### (a) Exhaust Valve Leakage
#### Apparent Indications to Watchkeepers
1. **High Exhaust Temperature:** The primary and most immediate indication is a steady rise in the exhaust gas temperature of the specific, affected unit, observable on the engine control room's pyrometer panel or monitoring system. This deviation from the average temperature of other cylinders is a key diagnostic sign.
2. **Loss of Power:** The engine's overall RPM may drop, or the fuel rack position will need to increase to maintain the same speed, indicating a loss of power contribution from one cylinder.

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play