Marine Boiler Safety Systems A7
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a safety valve?
To regulate the flow of steam to the main engine.
To prevent the boiler pressure from exceeding a safe working limit.
To blow down sediment from the boiler.
To indicate the water level in the boiler.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a non-return valve fitted in the feedwater line of the boiler?
Main steam stop valve
Auxiliary steam stop valve
Feed check valve
Scum valve
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a scum valve on a boiler?
To drain the boiler completely during maintenance.
To remove impurities that float on the water surface.
To release air and non-condensable gases from the boiler.
To allow for internal inspection.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The blowdown valve is a boiler mounting used for what purpose?
To prevent a vacuum from forming inside the boiler.
To release excess steam pressure.
To remove solid impurities, sediment, and sludge from the lowest part of the boiler.
To measure the pressure of the steam inside the boiler.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of an air vent valve?
To release steam when the boiler pressure is too high.
To blow down the boiler to remove impurities.
To prevent the accumulation of air and other non-condensable gases.
To shut off the steam from the boiler.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which boiler mounting is used for the visual inspection, cleaning, and repair of the boiler?
Pressure gauge
Water level gauge
Manhole
Safety valve
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A water level gauge is a boiler mounting that is used to:
Control the water level automatically.
Indicate the water level inside the boiler.
Add water to the boiler.
Drain water from the boiler.
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