Preview Questions Boiler Operator | Role Specific Skill

Question 1: What action should be taken if a safety valve fails to open during an overpressure situation?

Which action should you take?

Choose only one option

Shut down the boiler immediately and check the valve

Increase steam output to relieve pressure

Adjust the fuel input to reduce pressure

Attempt to manually release the pressure

Question 2: What is the minimum required distance between a boiler exhaust and any air intake to comply with safety standards?

Which action should you take?

Choose only one option

15 feet

10 feet

20 feet

5 feet

Question 3: What is a critical component of a boiler shutdown procedure to comply with safety standards?

Which action should you take?

Choose only one option

Shutting down the burner without cooling the boiler, for faster shutdown.

Turning off fuel supply immediately, regardless of pressure levels.

Shutting off the boiler while maintaining high steam pressure for safety.

Gradually lowering the pressure in the system to prevent thermal stress or mechanical failure.

Question 4: What is the most common cause of flame failure in a boiler burner?

Which action should you take?

Choose only one option

Incorrect fuel-to-air ratio

Faulty flame sensing equipment

Low water level in the boiler

Excessive pressure in the combustion chamber

Question 5: What is a blowdown valve used for in a steam boiler, and what would an improper setting cause?

Which action should you take?

Choose only one option

It is used to increase fuel efficiency, and improper setting will reduce combustion rates.

It is used to adjust the water level, and improper setting leads to water carryover.

It is used to control steam pressure, and improper setting will cause low pressure.

It is used to remove impurities from the boiler water to maintain system integrity; improper setting leads to excessive water loss.

Question 6: During a boiler shutdown, what critical parameter should be monitored to ensure safe cooling of the system?

Which action should you take?

Choose only one option

Water pH levels to ensure no corrosion occurs during shutdown.

The rate of temperature reduction to prevent thermal stress and damage to the boiler material.

Steam pressure levels to avoid sudden depressurization.

Fuel flow rates to ensure no fuel leaks during shutdown.