300+ TOP Boiler Operator Interview Questions and Answers

1. What Will You Do When Your Timed Schedule Or Jobs Assigned To The Plant Fail To Meet Due To Some Unforeseen Forecast Conditions?

This happens generally on every other day in this profession, but the key is not to stay back but move on. I will take some preventive measures to avoid loss of resources.

2. Which Eicas Message Indicates That Actual Thrust Is Significantly Less Than The Commanded Thrust?

ENG THRUST (L or R). FCOM 1 70.20.16

3. What Is Lock Out Tag Out?

It is a procedure that is used for the protection of the workers and the equipments during the maintenance or repair of the power plant.

4. Why Is A Block Of Coal Crushed Into Powder Before Burn?

A block of coal takes a lot of time to burn and give out the energy, but the powdered coal burns uniformly faster and since it is in its powdered form the entire coal burns and there is no waste of coal which leads in achieving greater calorific value.

5. Which Rotor Vibration Is Most Likely To Cause Tactile Vibration?

N@FCOM 1 70.2016

6. What Are The Secondary Engine Parameters?

N2, N3, fuel flow, oil pressure, oil temperature, oil quantity and engine vibration. FCOM 1 70.20.1

7. What Is The Amount Of Energy Out Of The Total Energy Produced That Is Taken Away By The Boiler Feed Pump?

A boiler feed pump takes away one third part of the energy generated by the power plant.

8. What Things Are Missing From A Natural Gas Power Plant To A Coal Power Plant?

CHP & stock yard, crushers, coal conveyors, wet or dry ash disposal, ash slurry disposal units, ash pond, LDO HFO oil elevations.

9. Tell Me Have You Ever Come Across A Situation When The Plant Went Into Some Technical Issues, How Did You Manage That?

Technical issues are very common in a plant, give an example from your past experience where you successfully managed to overcome a technical issue.

10. In Water Tube Boilers Are?

water passes through the tubes which are surrounded by flames and hot gases

11. The Object Of Producing Draught In A Boiler Is?

  1. to provide an adequate supply of air for the fuel combustion
  2. to exhaust the gases of combustion from the combustion chamber
  3. to discharge the gases of combustion to the atmosphere through the chimney

12. When Is The Auto-relight Function Activated?

When ever an engine is at or below idle with the fuel control switch in RUN. FCOM 1 70.20.8

13. How Many Ignitors Are Used For In Flight Starting?

Dual ignitors are always used for in flight starts. FCOM 1 70.20.8

14. Explain The Abilities You Have In Order To Work With Us As A Boiler Operator?

I’m familiar with the boiler operation, I was trained to fix and install boiler. I am a good trouble shooter and a good operator.

15. When Is A Crossbleed Start Indication Displayed Next To The N3 Indication?

If the airspeed is below that recommended for a windmilling start. FCOM 1 70.20.7

16. How Important Is Safety To You?

Safety in this profession is very important for every worker working inside the plant. A small mistake can lead to a big hazard and hence every minor chance of a mistake should be taken seriously.

17. Who Is A Power Plant Operator?

A power plant operator is a person who operates a power plant. He has got to be good at the technical skills of using the power plant and must be equally talented in distributing the work to the other workers who are working with the power plant.

18. What Can You Do To Drive The Blades Of The Turbine Faster And Preventing The Damage Of The Blades?

Steam should be heated to the temperature it is before making it to enter the turbine because superheated steam produces a lot of energy and also prevents the blades from rusting or damaging.

19. What Is The Difference Between An Induced Draft And Forced Draft?

Forced draft installed to force the air inside the plant while the induced draft fetches and pulls the air inside the air.

20. Do You Know In Flight, How Many Attempts Will The Autostart Perform?

The autostart will make continuous start attempts until the engine either starts or the pilot aborts the start attempt. FCOM 1 70.20.7

21. What Are The Primary Engine Parameters Displayed On Eicas?

EPR, N1 and EGT. FCOM 1 70.20.1

22. When Will The Engine Fail Message Appear On The Pfd?

If actual thrust is less than commanded thrust during takeoff with airspeed between 65kts and V1-6kts. FCOM 1 70.20.16

23. Explain And Convince Me That You Can Adapt To A Wide Variety Of People, Situations And Environments?

Swithching from oil to propane.

24. Tell Me After The Production Of Electricity, Why Do We Increase The Voltage Before Sending It To The Grid?

To avoid the trmission losses.

25. A Grate, In A Boiler, Is A Place In The Combustion Chamber Upon Which Fuel (wood Or Coal) Is Burnt.


26. Tell Me What Do You Feel Is An Acceptable Work Attendance Record?

Safety driven and self directed, I can and do work with minimal supervision and always put my plant and co- workers safety above all else.

27. Do You Know And Can You Comment Why Some Cooling Towers Are 300 Feet Tall And Others Are Like 30×30 Cubicle On Top Of A Building?

It depends on the type of plant and the application the tower has to deal with it.