Exam (elaborations)
BOILERS EXAM – QUESTIONS & SOLUTIONS
BOILERS EXAM – QUESTIONS & SOLUTIONS
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BOILERS EXAM – QUESTIONS & SOLUTIONSWhich of the following is necessary to generate steam in a boiler?
A. A container
B. Heat
C. Water
D. All of the above ✔️Ans - D. All of the above
It is the part of the boiler with water on one side and heat on the other side
✔️Ans - Heating surface
The area of a safety valve 4" in diameter is how many square inches? ✔️Ans
- 12.5664
The ASME code states that boilers with over _______square feet heating surface
must have two or more safety valve. ✔️Ans - 500
Which of the following best defines a total force acting on a boiler?
A. Area times diameter
B. Area times pressure
C. Area times distance
D. The MAWP times pressure ✔️Ans - Area times pressure
The MAWP on a low pressure steam boiler is _______ psi. ✔️Ans - 15
Which of the following is the most important valve on a boiler?
A. Main steam stop valve
B. Automatic nonreturn valve
C. Safety valve
D. Feedwater stop valve ✔️Ans - Safety valve
Which of the following statements is true for cast iron sectional boilers?
A. Cast iron sectional boilers have fire tubes
B. These boilers do not require water
C. Can be expanded in size
D. None of the above ✔️Ans - None of the above
At what temperature will water normally turns to steam? ✔️Ans - 212 F
ͦ
, Which of the following can be a function of the container in a boiler?
A. Holds the water
B. Collects the steam that is produced
C. Transfers heat to the water to produce steam
D. All of the above ✔️Ans - All of the above
The _________forms a vacuum that draws out of the condensate return line and
into the vacuum tank. ✔️Ans - Vacuum pump
What are the four systems necessary to operate a boiler? ✔️Ans -
Feedwater; fuel; draft; steam
Which of the following will make a boiler work more efficiently?
A. More fuel is added
B. Fire tubes are decrease in size
C. The heating surface is increased
D. All of the above ✔️Ans - The heating surface is increased
Which of the following boiler does not use tubes?
A. Cast iron sectional
B. Water tube
C. Scotch marine
D. Firebox ✔️Ans - Cast iron sectional
The gases of combustion leave the boiler through the: ✔️Ans - Breeching
It is the system that provides the air necessary for combustion. ✔️Ans -
Draft
Excess fuel oil in the fuel oil system returns to the: ✔️Ans - Fuel oil tank
Which of the following is the most common type of water tube boiler?
A. Firebox
B. Scotch marine
C. Vertical
D. Straight-tube multiple pass ✔️Ans - Straight-tube multiple pass
The function of the steam boiler is to ______. ✔️Ans - Produce steam
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