Stationary Engineer License Exam Prep
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A ______ fuse is necessary for a circuit with a A. 100 amps. Note: V = IR Therefore I = V/R 21,000 amps /220 volts = 95 amps
load of 21,000 watts and a voltage of 220
volts.
A. 100
B. 150
C. 175
D. 200
At 0 psig, how many BTU's are required to C. 970 BTU 3 multiple choice options
change 1 lb of water at 212F to steam?
A. 144
B. 180
C. 970
D. 1190
Radiation is: D. Heat transfer by waves
A. the movement of liquids or gases
created by a temperature difference.
B. Heat transfer by direct molecular
contact
C. the weight of a substance compared to
unity
D. Heat transfer by waves
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 Feedwater flows to 1) rearmost drum 2) down to the mud drum 3) up to middle
Sterling Boiler 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 C - higher Boiling Point
effect on the boiling point of water?
A. No change
B. Lower BP
C. Higher BP
D. Temperature will increase 2F for every
psi
Heat absorbed by water when is changes B. Latent Heat
from liquid to 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 C. 3 ways: conduction, convection and radiation
ways?
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