Power Engineering - 4B Ultra B Questions With Complete
Solutions
________ have largely replaced the cast-iron radiator in modern
installations.
a. unit heaters
b. open heaters
c. convectors
d. space heaters
e. radiator traps Correct Answers c. convectors
---------- requires owners to provide employees with a written
emergency plan.
a. OSHA
b. CSA B52
c. ASME B31.5
d. CEPA
e. IIAR Correct Answers b. CSA B52
"E2" regulation for Ammonia refrigeration is applicable to the
refrigerant amount of:
a. 50 kg
b. 2500 kg
c. 300 kg
d. 4500 kg and more
e. 1000 kg Correct Answers d. 4500 kg and more
1 micron is:
,a. 1 m
b. 1 mm
c. one-thousandth of a millimeter
d. one-thousandth of a meter
e. 10 mm Correct Answers c. one-thousandth of a millimeter
10. Cooling towers by design use:
a. softened water
b. lots of water
c. hard water
d. city water
e. very little water Correct Answers b. lots of water
206 kPa is equivalent to a head of water of:
a. 1.0 m
b. 21 m
c. 0.5 m
d. 15 m
e. 25 m Correct Answers b. 21 m
32 2 3 Oxygen and Carbon Dioxide cause the following
condition in a boiler:
a. scale
b. carryover
c. sludge
d. corrosion Correct Answers d. corrosion
,32 2 3 The process of passing the water through a steam flow in
a deaerator is known as:
a. scrubbing
b. scouring
c. sweeping
d. washing Correct Answers a. scrubbing
4 2 2 4 Total alkalinity is usually measured using the:
a. T-alkalinity test
b. M-alkalinity test
c. P-alkalinity test
d. O-alkalinity test Correct Answers b. M-alkalinity test
A bimetallic element converts temperature changes to
mechanical motion by having metals of different:
a. Temperatures
b. Coefficients of linear expansion
c. Electron velocities
d. Rates of temperature change
e. Coefficients of thermal conductivity Correct Answers b.
Coefficients of linear expansion
A buildup of oil in condenser increases ------- transfer and
increases ------- consumption of compressor. Correct Answers
heat, power
A conductivity meter is used to measure the:
, a. Alkalinity
b. Electrolyte
c. Hardness
d. Total Dissolved Solids Correct Answers d. Total Dissolved
Solids
A continuous blow-off is
a. used on every boiler
b. used to reduce sludge
c. used to reduce the dissolved gases in the boiler
d. installed in the steam drum
e. installed in the lower drum Correct Answers d. installed in
the steam drum
A controlled amount of high pressure, high temperature liquid
refrigerant:
a. Passes through the compressor to the condenser.
b. Passes through the regulating valve to the liquid receiver.
c. Occurs in isentropic systems.
d. Passes through the regulating valve to the evaporator.
e. Refrigerant flow is not controlled. Correct Answers d. Passes
through the regulating valve to the evaporator.
A device for measuring relative humidity is called:
a. a psychrometer
b. an aspirating gauge
c. a chronometer
d. a dew point tester
Solutions
________ have largely replaced the cast-iron radiator in modern
installations.
a. unit heaters
b. open heaters
c. convectors
d. space heaters
e. radiator traps Correct Answers c. convectors
---------- requires owners to provide employees with a written
emergency plan.
a. OSHA
b. CSA B52
c. ASME B31.5
d. CEPA
e. IIAR Correct Answers b. CSA B52
"E2" regulation for Ammonia refrigeration is applicable to the
refrigerant amount of:
a. 50 kg
b. 2500 kg
c. 300 kg
d. 4500 kg and more
e. 1000 kg Correct Answers d. 4500 kg and more
1 micron is:
,a. 1 m
b. 1 mm
c. one-thousandth of a millimeter
d. one-thousandth of a meter
e. 10 mm Correct Answers c. one-thousandth of a millimeter
10. Cooling towers by design use:
a. softened water
b. lots of water
c. hard water
d. city water
e. very little water Correct Answers b. lots of water
206 kPa is equivalent to a head of water of:
a. 1.0 m
b. 21 m
c. 0.5 m
d. 15 m
e. 25 m Correct Answers b. 21 m
32 2 3 Oxygen and Carbon Dioxide cause the following
condition in a boiler:
a. scale
b. carryover
c. sludge
d. corrosion Correct Answers d. corrosion
,32 2 3 The process of passing the water through a steam flow in
a deaerator is known as:
a. scrubbing
b. scouring
c. sweeping
d. washing Correct Answers a. scrubbing
4 2 2 4 Total alkalinity is usually measured using the:
a. T-alkalinity test
b. M-alkalinity test
c. P-alkalinity test
d. O-alkalinity test Correct Answers b. M-alkalinity test
A bimetallic element converts temperature changes to
mechanical motion by having metals of different:
a. Temperatures
b. Coefficients of linear expansion
c. Electron velocities
d. Rates of temperature change
e. Coefficients of thermal conductivity Correct Answers b.
Coefficients of linear expansion
A buildup of oil in condenser increases ------- transfer and
increases ------- consumption of compressor. Correct Answers
heat, power
A conductivity meter is used to measure the:
, a. Alkalinity
b. Electrolyte
c. Hardness
d. Total Dissolved Solids Correct Answers d. Total Dissolved
Solids
A continuous blow-off is
a. used on every boiler
b. used to reduce sludge
c. used to reduce the dissolved gases in the boiler
d. installed in the steam drum
e. installed in the lower drum Correct Answers d. installed in
the steam drum
A controlled amount of high pressure, high temperature liquid
refrigerant:
a. Passes through the compressor to the condenser.
b. Passes through the regulating valve to the liquid receiver.
c. Occurs in isentropic systems.
d. Passes through the regulating valve to the evaporator.
e. Refrigerant flow is not controlled. Correct Answers d. Passes
through the regulating valve to the evaporator.
A device for measuring relative humidity is called:
a. a psychrometer
b. an aspirating gauge
c. a chronometer
d. a dew point tester
