1.Cold start up. 2. What do you mean by critical speed. 3.Reason for deteriotion of vacuum. 4.If rolling at 3000rpm without synchronisation what whappen. 5.Boiler and turbine protection. 6.feed water chemistry.

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Accepted Answer

Answers to interview questions for an Operation Engineer position.

1. Cold start up: The process of starting a machine or system from a completely cold state.
2. Critical speed: The rotational speed at which a machine or system becomes unstable.
3. Deterioration of vacuum: Reasons for a decrease in vacuum pressure, such as leaks or equipment malfunction.
4. Rolling at 3000rpm without synchronization: Potential consequences of operating machinery without proper synchronization, such as damage to components or loss of efficiency.
5. Boiler and turbine protection: Measures taken to ensure the safe and efficient operation of boilers and turbines, such as temperature and pressure monitoring, safety valves, and automatic shutdown systems.
6. Feed water chemistry: The chemical composition and treatment of water used in boilers to prevent corrosion, scaling, and other issues.