Power Engineering - 4B3 Practice Questions and Answers Rated A
The bottom of the gauge glass for a firetube boiler must
be:
a. 76 mm above the highest firetube
a. 76 mm above the highest firetube
b. Level with the normal water level
c. 25 mm above the lowest firetube
d. Level with the highest firetube
e. 25 mm below the highest firetube
A disadvantage of a gauge glass safety shutott valve is:
a. It cannot withstand high pressure
b. The glass cannot be blown down d. It requires more maintenance
c. Loss of water is not prevented
d. It requires more maintenance
e. It makes the gauge glass replacement more diflcult
Flat gauge glasses are lined with mica to:
a. Cool the glass
b. Make the level easier to see c. Prevent erosion of the glass
c. Prevent erosion of the glass
d. Provide a high temperature seal
e. Increase the strength of the glass
In which ASME part it says that all steam boilers with fixed
water level shall have at least one gauge glass to show the
water level?
a. ASME VII BPVC, Part C2.423 b. ASME I BPVC, Part PG-60.1
b. ASME I BPVC, Part PG-60.1
c. ASME IV, Part HG-606
d. ASME CSD-1, Part CW-130
e. ASME IV BPVC, Part HG-603
, Power Engineering - 4B3 Practice Questions and Answers Rated A
Dirt traps are installed on an Igema remote water level
indicator:
a. To prevent osmosis from occurring
b. Because of the high amount of suspended solids col-
d. To prevent contamination of the indicating liquid
lecting in the constant head
c. So that overfilling of the indicating section is prevented
d. To prevent contamination of the indicating liquid
e. To prevent mixing of the indicating liquid with the boiler
water
ASME section VII says that each automatically fired boiler
is required to have two independent low water cut-otts.
b. False
a. True
b. False
A great advantage of an Igema level indicator over a Hop-
kinson unit is:
a. There are no moving parts
a. There are no moving parts
b. Its ability to show steam and water as ditterent colors
c. That it has the highest degree of accuracy
d. That it is the least costly to purchase
e. It requires no electricity
Two types of indirect level indicators are the:
a. Hopkinson and Igema
b. Igema and Ledoux a. Hopkinson and Igema
c. Bicolor and multi-tube
d. Bicolor and reflex
e. Ledoux and multi-tube
When a firetube boiler is filled for the first time, it should
be confirmed that when the water first appears in the
, Power Engineering - 4B3 Practice Questions and Answers Rated A
gauge glass, that there is mm of water over
the top of the tubes.
a. 25.4
d. 76
b. 50.8
c. 101.6
d. 76
e. 84
Hot water boilers may operate at higher pressure than
steam heating boilers.
a. True
a. True
b. False
A gauge glass may be surrounded by a few thin rods:
a. When the boiler is a high-pressure unit
b. To prevent cold draft damage e. To protect the glass from damage
c. If the gauge glass is attached to a water column
d. To make it easier to read the level
e. To protect the glass from damage
When a ditterential pressure is used to measure the water
level in a boiler steam drum, the ditterential pressure is:
a. Greatest when the steam pressure is low
d. Greatest when the drum level is low
b. Greatest when the drum level is high
c. Least when the drum level is low
d. Greatest when the drum level is low
e. Least when the steam pressure is low
In a high pressure, horizontal firetube steam boiler, the
bottom of the gauge glass should be above
the lowest permissible level in the boiler.
, Power Engineering - 4B3 Practice Questions and Answers Rated A
a. 50 cm
b. 51 mm
c. 76 mm b. 51 mm
d. 47 cm
e. 25.4 mm
As per ASME I & IV, in steam boilers, gauge glass either to
be connected directly to the shell or drum or to its water column
- --- --.
If a gauge glass breaks, the first action by the operator
should be to:
a. Open the gauge glass drain valve
d. Close the gauge glass isolation valves
b. Run for help
c. Shutdown the boiler
d. Close the gauge glass isolation valves
e. Reduce the feedwater flow
There is no normal water level has to be maintained in the
hot water heating boilers.
a. True
a. True
b. False
Try cocks are:
a. Used for draining the gauge glass
b. Are on the water column drain line e. Used for checking the water level while the gauge glass
c. Operated simultaneously is out of service
d. Used to blowdown the gauge glass
e. Used for checking the water level while the gauge glass
is out of service
For pressures above 2800 kPa, a gauge glass housing is
constructed of:
The bottom of the gauge glass for a firetube boiler must
be:
a. 76 mm above the highest firetube
a. 76 mm above the highest firetube
b. Level with the normal water level
c. 25 mm above the lowest firetube
d. Level with the highest firetube
e. 25 mm below the highest firetube
A disadvantage of a gauge glass safety shutott valve is:
a. It cannot withstand high pressure
b. The glass cannot be blown down d. It requires more maintenance
c. Loss of water is not prevented
d. It requires more maintenance
e. It makes the gauge glass replacement more diflcult
Flat gauge glasses are lined with mica to:
a. Cool the glass
b. Make the level easier to see c. Prevent erosion of the glass
c. Prevent erosion of the glass
d. Provide a high temperature seal
e. Increase the strength of the glass
In which ASME part it says that all steam boilers with fixed
water level shall have at least one gauge glass to show the
water level?
a. ASME VII BPVC, Part C2.423 b. ASME I BPVC, Part PG-60.1
b. ASME I BPVC, Part PG-60.1
c. ASME IV, Part HG-606
d. ASME CSD-1, Part CW-130
e. ASME IV BPVC, Part HG-603
, Power Engineering - 4B3 Practice Questions and Answers Rated A
Dirt traps are installed on an Igema remote water level
indicator:
a. To prevent osmosis from occurring
b. Because of the high amount of suspended solids col-
d. To prevent contamination of the indicating liquid
lecting in the constant head
c. So that overfilling of the indicating section is prevented
d. To prevent contamination of the indicating liquid
e. To prevent mixing of the indicating liquid with the boiler
water
ASME section VII says that each automatically fired boiler
is required to have two independent low water cut-otts.
b. False
a. True
b. False
A great advantage of an Igema level indicator over a Hop-
kinson unit is:
a. There are no moving parts
a. There are no moving parts
b. Its ability to show steam and water as ditterent colors
c. That it has the highest degree of accuracy
d. That it is the least costly to purchase
e. It requires no electricity
Two types of indirect level indicators are the:
a. Hopkinson and Igema
b. Igema and Ledoux a. Hopkinson and Igema
c. Bicolor and multi-tube
d. Bicolor and reflex
e. Ledoux and multi-tube
When a firetube boiler is filled for the first time, it should
be confirmed that when the water first appears in the
, Power Engineering - 4B3 Practice Questions and Answers Rated A
gauge glass, that there is mm of water over
the top of the tubes.
a. 25.4
d. 76
b. 50.8
c. 101.6
d. 76
e. 84
Hot water boilers may operate at higher pressure than
steam heating boilers.
a. True
a. True
b. False
A gauge glass may be surrounded by a few thin rods:
a. When the boiler is a high-pressure unit
b. To prevent cold draft damage e. To protect the glass from damage
c. If the gauge glass is attached to a water column
d. To make it easier to read the level
e. To protect the glass from damage
When a ditterential pressure is used to measure the water
level in a boiler steam drum, the ditterential pressure is:
a. Greatest when the steam pressure is low
d. Greatest when the drum level is low
b. Greatest when the drum level is high
c. Least when the drum level is low
d. Greatest when the drum level is low
e. Least when the steam pressure is low
In a high pressure, horizontal firetube steam boiler, the
bottom of the gauge glass should be above
the lowest permissible level in the boiler.
, Power Engineering - 4B3 Practice Questions and Answers Rated A
a. 50 cm
b. 51 mm
c. 76 mm b. 51 mm
d. 47 cm
e. 25.4 mm
As per ASME I & IV, in steam boilers, gauge glass either to
be connected directly to the shell or drum or to its water column
- --- --.
If a gauge glass breaks, the first action by the operator
should be to:
a. Open the gauge glass drain valve
d. Close the gauge glass isolation valves
b. Run for help
c. Shutdown the boiler
d. Close the gauge glass isolation valves
e. Reduce the feedwater flow
There is no normal water level has to be maintained in the
hot water heating boilers.
a. True
a. True
b. False
Try cocks are:
a. Used for draining the gauge glass
b. Are on the water column drain line e. Used for checking the water level while the gauge glass
c. Operated simultaneously is out of service
d. Used to blowdown the gauge glass
e. Used for checking the water level while the gauge glass
is out of service
For pressures above 2800 kPa, a gauge glass housing is
constructed of:
