Power Engineering 4th Class Ch 140 Exam Questions And Answers 100% Pass
1 view 0 purchase
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.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Thebright. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
