Steam

Question 1

Auxiliary steam at full operating pressure is supplied from the boiler directly to the

Answer 1

soot blowers

Question 2

Which of the valves listed should be closed before lighting off a boiler?

Answer 2

Economizer drain valve

Question 3

Which of the devices listed is indicated by arrow “H” shown in the illustration? SG-0008

Answer 3

Economizer

Question 4

The major heat loss in an oil fired boiler is the heat __________.

Answer 4

going up the stack

Question 5

According to the illustration of a typical boiler furnace rear wall, which item number would best represent “insulating block”? Illustration SG-0003

Answer 5

7

Question 6

Boiler refractory firebrick is secured to the casing by __________.

Answer 6

slots in the brick engaging anchor bolts

Question 7

Which of the listed refractory materials can be used in an area directly exposed to the highest heat in the furnace?

Answer 7

Firebrick

Question 8

When you are installing a new furnace floor in an oil fired boiler, the clearance between the firebricks should be large enough to __________.

Answer 8

allow for expansion without subjecting the joint to flame penetration

Question 9

In which of the listed components is chemical energy converted to thermal energy with regards to boiler operation?

Answer 9

Furnace

Question 10

Recirculation of the feed water ensures a flow of water through the __________.

Answer 10

main feed pump

Question 11

The device illustrated is referred to as a/an __________. GS-0048

Answer 11

inverted bucket trap

Question 12

The function of the device illustrated is to __________. GS-0048

Answer 12

control condensate output from a heat exchanger

Question 13

The quantity of condensate passing through the illustrated steam trap will be reduced as the __________. GS-0005

Answer 13

amount of vapor contained in “A” increases

Question 14

The trap illustrated operates as a __________. GS-0005

Answer 14

thermostatic bellows type steam trap

Question 15

If “E” is moved closer to the top of “B” as shown in the illustration, the __________. GS-0002

Answer 15

point of condensation will be moved closer to the steam inlet of the heat exchanger

Question 16

In the operation of the illustrated steam trap, condensate will continue to pass through the outlet as long as __________. GS-0002

Answer 16

the drop in pressure at “B” does not lower the pressure of the condensate below its current saturation pressure

Question 17

Which of the following statements is correct concerning the operation of the bucket type steam trap shown? GS-0048

Answer 17

The valve is opened by the sinking bucket.