COMMERCIAL BOILERS FINAL EXAM
QUESTIONS WITH PASSED ANSWERS!!
1 of 86
Term
Feedwater is treated to
decrease need for make-up
increase circulation
decrease dissolved solids
prevent formation of scale
Give this one a try later!
, b. serve as a sediment chamber d. prevent formation of scale
c. tenths of an inch of mercury a. top of the steam drum
Don't know?
2 of 86
Term
What type of valve has the least resistance to flow?
a.globe
b. gate
c. reducing
d. needle
Give this one a try later!
c. three b. natural
b. gate c. water
Don't know?
3 of 86
Term
, During boiler inspection, the main steam stop valves are ____.
a. left fully open
b. closed, locked and tagged
c. left partially open
d. none of the above
Give this one a try later!
c. expansion bends b. excessive suspended solids
b. closed, locked and tagged b. oxygen and carbon dioxide
Don't know?
4 of 86
Term
Increasing the pressure has what effect on the boiling point of
water?
a.temperature will increase 2 F for every psi
b. temperature will be raised
c. temperature will be lowered
d. no change
Give this one a try later!
a. raise the water level c. boiler water analysis
, b. lower than the drum safety valves b. temperature will be raised
Don't know?
5 of 86
Term
Boiler tubes are manufactured using materials that meet ____
specifications.
a. DOE
b.ASME
c. ABMA
d. ASTM
Give this one a try later!
b. ASME c. steel
b. gate d. 338 F
Don't know?
6 of 86
Term
Foaming in boiler water is a result of ____.
a.carryover
b. excessive suspended solids
QUESTIONS WITH PASSED ANSWERS!!
1 of 86
Term
Feedwater is treated to
decrease need for make-up
increase circulation
decrease dissolved solids
prevent formation of scale
Give this one a try later!
, b. serve as a sediment chamber d. prevent formation of scale
c. tenths of an inch of mercury a. top of the steam drum
Don't know?
2 of 86
Term
What type of valve has the least resistance to flow?
a.globe
b. gate
c. reducing
d. needle
Give this one a try later!
c. three b. natural
b. gate c. water
Don't know?
3 of 86
Term
, During boiler inspection, the main steam stop valves are ____.
a. left fully open
b. closed, locked and tagged
c. left partially open
d. none of the above
Give this one a try later!
c. expansion bends b. excessive suspended solids
b. closed, locked and tagged b. oxygen and carbon dioxide
Don't know?
4 of 86
Term
Increasing the pressure has what effect on the boiling point of
water?
a.temperature will increase 2 F for every psi
b. temperature will be raised
c. temperature will be lowered
d. no change
Give this one a try later!
a. raise the water level c. boiler water analysis
, b. lower than the drum safety valves b. temperature will be raised
Don't know?
5 of 86
Term
Boiler tubes are manufactured using materials that meet ____
specifications.
a. DOE
b.ASME
c. ABMA
d. ASTM
Give this one a try later!
b. ASME c. steel
b. gate d. 338 F
Don't know?
6 of 86
Term
Foaming in boiler water is a result of ____.
a.carryover
b. excessive suspended solids
