NJ Black Seal Steam System
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. Convert 89 Celsius to Fahrenheit. - Correct Answer: 192 degrees F
2. The process of a solid changing to a gas without going through the liquid
phase is known as? - Correct Answer: Sublimation
3. Which portion of the 12:90 pertains to Refrigeration Systems - Correct
Answer: Subchapter 6
4. "If a refrigerating system does not react to an adjustment of the TXV, it may
be due to" - Correct Answer: an oil logged evaporator or coil
5. Which statement best defines the operation of the valves of a refrigeration
compressor - Correct Answer: They are opened and closed by pressure
difference
6. Convert 72 degrees F to Rankine - Correct Answer: 532 degrees Rankine
,7. A large load could effect the operation of a constant pressure expansion
valve by? - Correct Answer: Starving the evaporator
8. What best defines a Btu? - Correct Answer: The quantity of heat
required to raise the temperature of 1 lb. of water 1 degree.
9. Which statements below would not cause a noisy compressor? - Correct
Answer: Flash gas in the expansion valve
10.The point at which moisture will begin to condense out of the air is known
as? - Correct Answer: Dew point
11."If the high side float were to fill with liquid and sink, what would be the
result?" - Correct Answer: The evaporator would starve for refrigerant
12.At the outlet of a properly operating evaporator which of the following is
true? - Correct Answer: The refrigerant does not follow the pressure
temperature relationship
13.The component that absorbs heat into the system is called? - Correct
Answer: Evaporator
14.Flash gas is found where in a refrigeration system? - Correct Answer:
Evaporator inlet
, 15.What is the formula for Total Dynamic Head? - Correct Answer:
TDH=Hs+Hp+Hf+Hv
16.When is liquid injection into the suction line necessary to cool a
compressor? - Correct Answer: When superheat is too high
17.The capacity of an evaporative condenser is determined by: - Correct
Answer: All of these
18.Which type of compressor does not require oil? - Correct Answer:
rotary lobe
19."If you open the adjustment on a TXV, you" - Correct Answer: lower the
superheat
20.What would have the least effect on the capacity of a water cooled
condenser? - Correct Answer: The ambient air temperature
The second law of thermodynamics states: - Correct Answer: Heat moves
from hot to cold
Which is a false statement about the operation of a shell and tube condenser? -
Correct Answer: Water normally circulates through the shell
, What are the four main steps in a vapor compression refrigeration system? -
Correct Answer: "Expansion, evaporation, compression, condensation"
What is the position of the suction and discharge valves when the piston is at top
dead center? - Correct Answer: Both closed
How close the leaving cold water of a cooling tower can get in relation to the
entering air wet bulb temperature is known as? - Correct Answer: Tower
approach
"In an automatic expansion valve system, constant pressure is maintained at the:"
- Correct Answer: Evaporator inlet
What is the definition of compression ratio? - Correct Answer: Absolute
Discharge / Absolute Suction
A system using an evaporative condenser operates most efficiently under what
conditions? - Correct Answer: When the wet-bulb temperature of air is low
Packing in the stuffing box is: - Correct Answer: Made of metal with oil
running through
"If you had a flooded evaporator, which type of metering device would you use?"
- Correct Answer: Low side float
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. Convert 89 Celsius to Fahrenheit. - Correct Answer: 192 degrees F
2. The process of a solid changing to a gas without going through the liquid
phase is known as? - Correct Answer: Sublimation
3. Which portion of the 12:90 pertains to Refrigeration Systems - Correct
Answer: Subchapter 6
4. "If a refrigerating system does not react to an adjustment of the TXV, it may
be due to" - Correct Answer: an oil logged evaporator or coil
5. Which statement best defines the operation of the valves of a refrigeration
compressor - Correct Answer: They are opened and closed by pressure
difference
6. Convert 72 degrees F to Rankine - Correct Answer: 532 degrees Rankine
,7. A large load could effect the operation of a constant pressure expansion
valve by? - Correct Answer: Starving the evaporator
8. What best defines a Btu? - Correct Answer: The quantity of heat
required to raise the temperature of 1 lb. of water 1 degree.
9. Which statements below would not cause a noisy compressor? - Correct
Answer: Flash gas in the expansion valve
10.The point at which moisture will begin to condense out of the air is known
as? - Correct Answer: Dew point
11."If the high side float were to fill with liquid and sink, what would be the
result?" - Correct Answer: The evaporator would starve for refrigerant
12.At the outlet of a properly operating evaporator which of the following is
true? - Correct Answer: The refrigerant does not follow the pressure
temperature relationship
13.The component that absorbs heat into the system is called? - Correct
Answer: Evaporator
14.Flash gas is found where in a refrigeration system? - Correct Answer:
Evaporator inlet
, 15.What is the formula for Total Dynamic Head? - Correct Answer:
TDH=Hs+Hp+Hf+Hv
16.When is liquid injection into the suction line necessary to cool a
compressor? - Correct Answer: When superheat is too high
17.The capacity of an evaporative condenser is determined by: - Correct
Answer: All of these
18.Which type of compressor does not require oil? - Correct Answer:
rotary lobe
19."If you open the adjustment on a TXV, you" - Correct Answer: lower the
superheat
20.What would have the least effect on the capacity of a water cooled
condenser? - Correct Answer: The ambient air temperature
The second law of thermodynamics states: - Correct Answer: Heat moves
from hot to cold
Which is a false statement about the operation of a shell and tube condenser? -
Correct Answer: Water normally circulates through the shell
, What are the four main steps in a vapor compression refrigeration system? -
Correct Answer: "Expansion, evaporation, compression, condensation"
What is the position of the suction and discharge valves when the piston is at top
dead center? - Correct Answer: Both closed
How close the leaving cold water of a cooling tower can get in relation to the
entering air wet bulb temperature is known as? - Correct Answer: Tower
approach
"In an automatic expansion valve system, constant pressure is maintained at the:"
- Correct Answer: Evaporator inlet
What is the definition of compression ratio? - Correct Answer: Absolute
Discharge / Absolute Suction
A system using an evaporative condenser operates most efficiently under what
conditions? - Correct Answer: When the wet-bulb temperature of air is low
Packing in the stuffing box is: - Correct Answer: Made of metal with oil
running through
"If you had a flooded evaporator, which type of metering device would you use?"
- Correct Answer: Low side float
