Stationary Engineer License Exam Prep
Sensible heat is: B. Heat quantity that can be felt or measured by a thermometer
A. An established relationship comparing any
substance to the heat content of water.
B. Heat quantity that can be felt or measured by a
thermometer
C. Heat quantity above the saturation point
D. Measure of heat intensity
All steam lines should be pitched: A. In the direction of flow
A. In the direction of flow
B. Back towards the boiler
C. Level
D. For convenience
Draw a simple picture of a Sterling Boiler. Label it.
Describe the water flow through a Sterling Boiler Feedwater flows to 1) rearmost drum 2) down to the mud drum 3) up to middle
drum 4) to front drum through crossover pipes and 5) back down to mud drum
Draw a picture of a Scotch Boiler. Label the firebox,
combustion chamber, crown sheet, tubes, feed water
inlet, steam outlet, stack, Economizer and Superheater.
Draw a picture of a Firetube Boiler. Label it.
Draw a picture of a Locomotive Fire Tube Boiler. Label
it.
Increasing the pressure will have what effect on the C - higher Boiling Point
boiling point of water?
A. No change
B. Lower BP
C. Higher BP
D. Temperature will increase 2F for every psi
, Stationary Engineer License Exam Prep
Heat absorbed by water when is changes from liquid to B. Latent Heat
steam at the boiling point is called:
A. Sensible heat
B. Latent heat
C. Specific heat
D. Super heat
Heat may be transferred in how many ways? C. 3 ways: conduction, convection and radiation
A. 1
B. 2
C. 3
D. 4
A boiler horsepower is defined as: C. evaporation of 34.5 lb of water and at 212F per hour
A. 970.3 BTU
B. Total heating surface times the evaporation factor
C. evaporation of 34.5 lb of water and at 212F per hour
D. evaporation of 34.5 lb of water from and at 212F per
8 hours
A boiler's steam pressure gauge reads 150 psig. What is D. 164.7 psia (150 psig + 14.7 psi = 164.7 psia)
the absolute pressure?
A. 14.7 psia
B. 135.3 psia
C. 150 psia
D. 164.7 psia
What does 212F equal on the Celsius scale? B. 100C
A. 32C
B. 100C
C. 180C
D. 970.3C
One boiler horsepower is equal to how many BTU's? B. 33,472 BTU
A. 970.3
B. 33,472 BTU
C. 125,000 BTU
D. 288,000 BTU
A British Thermal Unit is A. The amount of heat needed to raise 1 lb of water 1F
A. the amount of heat needed to raise 1 lb of water 1F
B. the amount of heat needed to raise 1 lb of steam 1F
C. A unit of temperature measurement
D. the amount of heat in water between freezing and
boiling
, Stationary Engineer License Exam Prep
Hydronic heat is: B. Hot water heat
A. Steam heat
B. Hot water heat
C. Radiant heat
D. Heat of evaporation
Superheated steam is: B. Very hot steam
A. reheated steam
B. very hot steam
C. flash steam
D. saturated steam
2,545 Btuh represents: C. 1 horsepower-hour
A. 1 brake horsepower
B. 1 kilowatt-hour
C. 1 horsepower-hour
D. 1 therm
A throttling calorimeter is used to measure the quality B. saturated steam
of:
A. dry steam
B. saturated steam
C. superheated steam
D. BTU in coal
The amount of heat in 1 lb of saturated steam is B. 1,150 BTU
approximately
A. 970.3 BTU
B. 1,150 BTU
C. 3,412 BTU
D. 100,000 BTU
A boiler operating at 100 psi has a dry saturated steam D. 338F
temperature of 338F. What is the boiler's water
temperature?
A. 180F
B. 212F
C. 309F
D. 338F
A dry pipe is used to A. separate moisture from steam as it leaves the drum
A. separate moisture from steam as it leaves the drum
B. separate moisture from steam as it leaves the
superheater
C. separate moisture from steam at the turbine throttle
D. increase superheater temperature
, Stationary Engineer License Exam Prep
The purpose of a staybolt is to: D. strengthen and support the flat plates of a firetube boiler
A. support the boiler shell
B. reinforce the heads of a firetube boiler
C. make a water tube boiler safer
D. strengthen and support the flat plates of a firetube
boiler
The boiler vent valve is located on the A. Top of the steam drum
A. top of the steam drum
B. bottom of the steam drum
C. top of the mud drum
D. top of the water drum
The purpose of the hole at the end of a staybolt is B. indicate a cracked or broken staybolt
A. indicate how much water in is the boiler
B. indicate a cracked or broken staybolt
C. help the boiler operator operate more efficiently
D. provide a means for attaching insulation to a boiler
A fusible plug melts at B. 450F
A. 212F
B. 450F
C. 1000F
D. None of the above
As the firing rate increases in a boiler equipped with a A. Increases
convection superheater, the steam temperature
A. increases
B. decreases
C. stays constant
D. both increases and decreases
When boilers are connected to a common header, it is B. manholes
required that an ample free blowing drain be provided
between the stop valves if either or both boilers have
A. handholes
B. manholes
C. over 10 tubes or flues
D. more than one safety valve
It is permissible to have only one bottom blowdown A. MAWP does not exceed 100 psi
valve on a boiler when the
A. MAWP does not exceed 100 psi
B. MAWP exceeds 125 psi
C. heating surface does not exceed 100 sq ft
D. heating surface does not exceed 250 sq ft
Sensible heat is: B. Heat quantity that can be felt or measured by a thermometer
A. An established relationship comparing any
substance to the heat content of water.
B. Heat quantity that can be felt or measured by a
thermometer
C. Heat quantity above the saturation point
D. Measure of heat intensity
All steam lines should be pitched: A. In the direction of flow
A. In the direction of flow
B. Back towards the boiler
C. Level
D. For convenience
Draw a simple picture of a Sterling Boiler. Label it.
Describe the water flow through a Sterling Boiler Feedwater flows to 1) rearmost drum 2) down to the mud drum 3) up to middle
drum 4) to front drum through crossover pipes and 5) back down to mud drum
Draw a picture of a Scotch Boiler. Label the firebox,
combustion chamber, crown sheet, tubes, feed water
inlet, steam outlet, stack, Economizer and Superheater.
Draw a picture of a Firetube Boiler. Label it.
Draw a picture of a Locomotive Fire Tube Boiler. Label
it.
Increasing the pressure will have what effect on the C - higher Boiling Point
boiling point of water?
A. No change
B. Lower BP
C. Higher BP
D. Temperature will increase 2F for every psi
, Stationary Engineer License Exam Prep
Heat absorbed by water when is changes from liquid to B. Latent Heat
steam at the boiling point is called:
A. Sensible heat
B. Latent heat
C. Specific heat
D. Super heat
Heat may be transferred in how many ways? C. 3 ways: conduction, convection and radiation
A. 1
B. 2
C. 3
D. 4
A boiler horsepower is defined as: C. evaporation of 34.5 lb of water and at 212F per hour
A. 970.3 BTU
B. Total heating surface times the evaporation factor
C. evaporation of 34.5 lb of water and at 212F per hour
D. evaporation of 34.5 lb of water from and at 212F per
8 hours
A boiler's steam pressure gauge reads 150 psig. What is D. 164.7 psia (150 psig + 14.7 psi = 164.7 psia)
the absolute pressure?
A. 14.7 psia
B. 135.3 psia
C. 150 psia
D. 164.7 psia
What does 212F equal on the Celsius scale? B. 100C
A. 32C
B. 100C
C. 180C
D. 970.3C
One boiler horsepower is equal to how many BTU's? B. 33,472 BTU
A. 970.3
B. 33,472 BTU
C. 125,000 BTU
D. 288,000 BTU
A British Thermal Unit is A. The amount of heat needed to raise 1 lb of water 1F
A. the amount of heat needed to raise 1 lb of water 1F
B. the amount of heat needed to raise 1 lb of steam 1F
C. A unit of temperature measurement
D. the amount of heat in water between freezing and
boiling
, Stationary Engineer License Exam Prep
Hydronic heat is: B. Hot water heat
A. Steam heat
B. Hot water heat
C. Radiant heat
D. Heat of evaporation
Superheated steam is: B. Very hot steam
A. reheated steam
B. very hot steam
C. flash steam
D. saturated steam
2,545 Btuh represents: C. 1 horsepower-hour
A. 1 brake horsepower
B. 1 kilowatt-hour
C. 1 horsepower-hour
D. 1 therm
A throttling calorimeter is used to measure the quality B. saturated steam
of:
A. dry steam
B. saturated steam
C. superheated steam
D. BTU in coal
The amount of heat in 1 lb of saturated steam is B. 1,150 BTU
approximately
A. 970.3 BTU
B. 1,150 BTU
C. 3,412 BTU
D. 100,000 BTU
A boiler operating at 100 psi has a dry saturated steam D. 338F
temperature of 338F. What is the boiler's water
temperature?
A. 180F
B. 212F
C. 309F
D. 338F
A dry pipe is used to A. separate moisture from steam as it leaves the drum
A. separate moisture from steam as it leaves the drum
B. separate moisture from steam as it leaves the
superheater
C. separate moisture from steam at the turbine throttle
D. increase superheater temperature
, Stationary Engineer License Exam Prep
The purpose of a staybolt is to: D. strengthen and support the flat plates of a firetube boiler
A. support the boiler shell
B. reinforce the heads of a firetube boiler
C. make a water tube boiler safer
D. strengthen and support the flat plates of a firetube
boiler
The boiler vent valve is located on the A. Top of the steam drum
A. top of the steam drum
B. bottom of the steam drum
C. top of the mud drum
D. top of the water drum
The purpose of the hole at the end of a staybolt is B. indicate a cracked or broken staybolt
A. indicate how much water in is the boiler
B. indicate a cracked or broken staybolt
C. help the boiler operator operate more efficiently
D. provide a means for attaching insulation to a boiler
A fusible plug melts at B. 450F
A. 212F
B. 450F
C. 1000F
D. None of the above
As the firing rate increases in a boiler equipped with a A. Increases
convection superheater, the steam temperature
A. increases
B. decreases
C. stays constant
D. both increases and decreases
When boilers are connected to a common header, it is B. manholes
required that an ample free blowing drain be provided
between the stop valves if either or both boilers have
A. handholes
B. manholes
C. over 10 tubes or flues
D. more than one safety valve
It is permissible to have only one bottom blowdown A. MAWP does not exceed 100 psi
valve on a boiler when the
A. MAWP does not exceed 100 psi
B. MAWP exceeds 125 psi
C. heating surface does not exceed 100 sq ft
D. heating surface does not exceed 250 sq ft
