Power Engineering 4th Class Ch 140 Exam Questions And Answers 100% Pass
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Course
Power Engineering
Institution
Power Engineering
Power Engineering 4th Class Ch 140 Exam
Questions And Answers 100% Pass
When the fire side of a boiler is opened up, small spots of water leakage may be detected by:
Choose one answer.
a. Ultraviolet light
b. White salt deposits resulting from water evaporation
c. Water on the furnace floor
...
Power Engineering 4th Class Ch 140 Exam
Questions And Answers 100% Pass
When the fire side of a boiler is opened up, small spots of water leakage may be detected by:
Choose one answer.
a. Ultraviolet light
b. White salt deposits resulting from water evaporation
c. Water on the furnace floor
d. Hissing sounds
e. Water running down the tubes - answer✔b
A tube beading tool is used:
Choose one answer.
a. On water tube boilers
b. On fire tube boilers
c. To fasten the stays in the tube sheet
d. To cut fire tubes
e. To unfasten fire tubes from the tube sheet. - answer✔b
A substance that will absorb humidity inside a boiler during dry layup is:
Choose one answer.
a. Zeolite
b. Sodium sulphite
c. Sodium chloride
e. Lime soda - answer✔d
It is recommended that a new boiler be shut down, drained, opened up, flushed out and
inspected after the first _____ months of operation.
Choose one answer.
a. Two
b. Three
c. Six
d. Nine
e. Twelve - answer✔b
The furnace refractory in a boiler should be ___________ to prolong its life.
Choose one answer.
a. Wash coated with a dilute solution of heat resistant cement
b. Painted with heat resistant paint
c. Oiled
d. Wire brushed
e. Washed with a high-pressure hose - answer✔a
The packing gland of a boiler circulating pump should have some leakage:
Choose one answer.
a. To prevent the packing from drying out
b. So that the shaft sleeve will take the wear
c. In order for the stuffing box to run at the desired high temperature
d. So the operator can tell when the pump becomes vapour bound
e. In order to keep the motor amperage down - answer✔a
Firetubes are cleaned annually to remove _______ deposits.
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