3.9 Boiler procedures

Question 1 of 10

1

In order to avoid scale formation and corrosion in the _____, the make up water for the feedwater supply must be properly treated

Select one of the following:

dearator
boiler
furnace
tank

Explanation

Question 2 of 10

1

When examining the waterside surfaces, the inspector looks for signs of corrosion, pitting and ________ of the metal.

Select one of the following:

bulging
blistering
cracking
wearing

Explanation

Question 3 of 10

1

During the high-pressure flush, the blowdown valves should be disconnected, if possible, to prevent them from getting plugged with _________

Select one of the following:

water
dirt
rust
scale

Explanation

Question 4 of 10

1

Moisture absorbing material should be placed on trays inside the drums to absorb moisture from the ________

Select one of the following:

metal
tubes
air
fuel

Explanation

Question 5 of 10

1

Inert gas, such as nitrogen, is connected to the drum vent to maintain approximately ______ kpa, positive pressure.

Select one of the following:

100
35
325
500

Explanation

Question 6 of 10

1

When the pressure in the boiler steam drum drops to ______kPa, the drum vents are to be opened to avoid the formation of a vacuum within the boiler.

Select one of the following:

170
500
35
1000

Explanation

Question 7 of 10

1

Which of the following is not a common cause of furnace explosions

Select one of the following:

failure to purge the furnace adequately before start-up
admission of fuel to main burner before pilot flame or other ignition source is established.
Loss of id fan
attempting to light one burner off other burners, in operation
incorrect amount of air supplied to the burner can resulting in incomplete combustion

Explanation

Question 8 of 10

1

The operator must be familiar with manual operation of the ______system, in case of a system failure

Select one of the following:

generator
water
control
air

Explanation

Question 9 of 10

1

___________ storage is preferable for boilers that are out of service for an extended period of time or in locations where freezing temperatures.

Select one of the following:

Dry
Short
Wet
Long

Explanation

Question 10 of 10

1

In order for the gauge glass to show the correct level, all connections to the gauge glass and the water column, must be ______ to ensure they are clear and free from obstructions.

Select one of the following:

tight
purged
blowndown
unblocked

	Created by TRAVIS CANNING almost 9 years ago

Quiz on 3.9 Boiler procedures, created by TRAVIS CANNING on 29/01/2016.

3.9 Boiler procedures

3.9 Boiler procedures

Question 1 of 10

In order to avoid scale formation and corrosion in the _____, the make up water for the feedwater supply must be properly treated

Select one of the following:

Explanation

Question 2 of 10

When examining the waterside surfaces, the inspector looks for signs of corrosion, pitting and ________ of the metal.

Select one of the following:

Explanation

Question 3 of 10

During the high-pressure flush, the blowdown valves should be disconnected, if possible, to prevent them from getting plugged with _________

Select one of the following:

Explanation

Question 4 of 10

Moisture absorbing material should be placed on trays inside the drums to absorb moisture from the ________

Select one of the following:

Explanation

Question 5 of 10

Inert gas, such as nitrogen, is connected to the drum vent to maintain approximately ______ kpa, positive pressure.

Select one of the following:

Explanation

Question 6 of 10

When the pressure in the boiler steam drum drops to ______kPa, the drum vents are to be opened to avoid the formation of a vacuum within the boiler.

Select one of the following:

Explanation

Question 7 of 10

Which of the following is not a common cause of furnace explosions

Select one of the following:

Explanation

Question 8 of 10

The operator must be familiar with manual operation of the ______system, in case of a system failure

Select one of the following:

Explanation

Question 9 of 10

___________ storage is preferable for boilers that are out of service for an extended period of time or in locations where freezing temperatures.

Select one of the following:

Explanation

Question 10 of 10

In order for the gauge glass to show the correct level, all connections to the gauge glass and the water column, must be ______ to ensure they are clear and free from obstructions.

Select one of the following:

Explanation