Which ASME code states "If the water level is above the visible range of the gauge glass, shut off the feed water,fuel, and combustion air in that order."

Which ASME code states "If the water level is above the visible range of the gauge glass, shut off the feed water,fuel, and combustion air in that order."

A. Section I
B. Section II
C. Section VI
D. Section VII
E. Section VIII

Answer: D

High water level is usually caused by?

High water level is usually caused by?

A. Defective level control system
B. Defective feedwater pump
C. Defective valve
D. All of the above
E. B and C

Answer: A

Which ASME code states "If the water level is below the gauge glass, the safest and most conservative action is to shut off fuel and air, but continue to feed water slowly until the normal water level is restored"

Which ASME code states "If the water level is below the gauge glass, the safest and most conservative action is to shut off fuel and air, but continue to feed water slowly until the normal water level is restored"

A. Section I
B. Section II
C. Section VI
D. Section VII
E. Section VIII

Answer: D

If the operator is unable to see the water level in the gauge glass, what should be done?

If the operator is unable to see the water level in the gauge glass, what should be done?

A. Shut down the boiler
B. Check the level by opening the drain on the glass
C. Continue firing and add water to see if the water level rises
D. Notify the chief engineer before responding to the condition

Answer: B

The boiler should be at __%(or more) of maximum when sootblowers are in service.

The boiler should be at __%(or more) of maximum when sootblowers are in service.

A. 90
B. 70
C. 80
D. 60
E. 50

Answer: E

Soot Blowers should be operated

Soot Blowers should be operated

A. Weekly
B. Monthly
C. Once a shift
D. Annually
E. Semi-Annually

Answer: C

Stack temperature should be checked

Stack temperature should be checked

A. Weekly
B. Monthly
C. Daily
D. Annually
E. Semi-Annually

Answer: C

In the stack, a white plume is due to the presence of __ from the combustion process

In the stack, a white plume is due to the presence of __ from the combustion process

A. Carbon dioxide
B. Water vapor
C. Sulphur dioxide
D. Ash
E. Nitrogen dioxide

Answer: B

If the steam increases in a boiler, the amount of fuel burned in the boiler furnace must

If the steam increases in a boiler, the amount of fuel burned in the boiler furnace must

A. Increase
B. Decrease
C. No change

Answer: A

Low water level alarm should be checked

Low water level alarm should be checked

A. Once a year
B. Once a week
C. Once a month
D. Beginning of each shift
E. At the end of each shift

Answer: D

The gauge glass, water column and connecting lines should be blown through

The gauge glass, water column and connecting lines should be blown through

A. Weekly
B. Monthly
C. Daily
D. Annually
E. Semi-Annually

Answer: C

A high water level in a boiler:

A high water level in a boiler:

a. Is of no concern to the boiler operator
b. Will cause the high water cut-off to shut down the boiler
c. Is usually caused by a boiler feed pump malfunction
d. Will necessitate an immediate shutdown and cool down
e. Is usually caused by malfunction of the water level control

Answer: E

One cause of flame failure in oil or gas fired boilers is:

One cause of flame failure in oil or gas fired boilers is:

a. Excessive fuel temperature
b. Fuel pressure being too high
c. The fuel being too volatile
d. Water in the fuel
e. The hydrogen content is too low

Answer: D

Failure to _____ the furnace thoroughly before light-up can cause a furnace explosion.

Failure to _____ the furnace thoroughly before light-up can cause a furnace explosion.

a. preheat
b. clean
c. soot-blow
d. cool
e. purge

Answer: E

The water level in a boiler is dropping rapidly, even though you have increased the water supply. What should you do?

The water level in a boiler is dropping rapidly, even though you have increased the water supply. What should you do?

a. Call the chief engineer and ask for advice
b. Hook up an auxiliary source of water
c. Shut off the burners before the level reaches the bottom of the gauge glass and determine the cause of the falling water
d. Lower the firing rate of the boiler to prevent the tubes being overheated if the water drops too low
e. Shut the boiler down and start the standby pump

Answer: C

A boiler pressure explosion:

A boiler pressure explosion:

a. Could be the result of water in the fuel oil
b. Could be the result of inadequate ignition
c. May be caused by a low water condition
d. Could result from improper soot blowing procedures
e. Could result from a defective flame scanner

Answer: C

If a low water condition occurs in a boiler, the engineer in charge should:

If a low water condition occurs in a boiler, the engineer in charge should:

a. Shut down the burner immediately and add water
b. Notify the chief engineer before responding to the condition
c. Shut down the burner, let the boiler cool slowly, then drain and inspect it
d. Shut down the burner, let the boiler cool, then restore level
e. Continue firing and restore the water level

Answer: C

Operating sootblowers when the boiler load is too low may cause:

Operating sootblowers when the boiler load is too low may cause:

a. Flame-out
b. Excessive draft
c. Increased thermal efficiency
d. Excessive steam pressure in the soot blower pipe
e. The tubes to be eroded by the steam

Answer: A

A reason for many boiler accidents may be:

A reason for many boiler accidents may be:

a. Inadequate training of operating personnel
b. Log books up to date and adequate
c. Regular testing and checking of control devices
d. Asking insurance companies to inspect boilers more often
e. Oversized safety valves

Answer: A

A boiler pressure explosion is NOT caused by:

A boiler pressure explosion is NOT caused by:

a. Scale and sludge build-up
b. Overheating
c. Insufficient combustion air
d. Corrosion
e. Thermal shock

Answer: C