ESCO HEAT PUMP PAPER 2026 SOLVED
QUESTIONS AND FULL SOLUTION GRADED A+
◉ Atmospheric pressure is
______________
psia at sea leve
Answer: 14.7
◉ Refrigeration is defined as the movement of ___________________
from a area where its not wanted, to an area where it is less
objectionable.
Answer: heat
◉ As refrigerant absorbs heat, it changes from a
__________________ to a _______________
.
Answer: liquid vapor
◉ Superheat vapor is a gas that has been heated to a temperature
____________
its saturation point.
Answer: above
,◉ During the heating cycle, the outdoor coil of a heat pump become
the ___________________
Answer: evaporator
◉ During the cooling cycle, the indoor coil of a heat pump becomes
the _____________
Answer: evaporator
◉ When a heat pump system goes into defrost mode, what process
takes place so that system can continue to provide heat to the
structure?
Answer: aux heat
◉ A measurement of the speed or motion of molecules in a
substance called.
Answer: temperature
◉ Name two common temperature scales used to measure air
temperature.
Answer: Celsius,
Fahrenheit
,◉ What does ambient mean?
Answer: tempature surrounding an area or object
◉ What is a wet bulb temperature used for?
Answer: to measure the moisture in the air and air temp
◉ What is dew point?
Answer: point at which condensation occurs.
◉ What is pressure?
Answer: force per unit area
◉ What does PSIG stand for?
Answer: per square inch gauge
◉ The three methods of heat transfer are
Answer: convection, conduction
, and radiation
.
◉ Heat always travel from
Answer: hot to cold
, ◉ What method does refrigerant reject heat
Answer: condenser
◉ What is the pressure of 410A at 30
F?
Answer: 97.5
◉ What is the temperature of 410A at 418 psig
Answer: 120
◉ In order list the three processes that refrigerant goes through in
the condenser
Answer: desuperheat, vapor to liquid, and subcooled
◉ In order list the two processes that refrigerant goes through in the
evaporator
Answer: evaporation, then vaporized.
◉ What are the differences between a heat pump and regular air
conditioner?
QUESTIONS AND FULL SOLUTION GRADED A+
◉ Atmospheric pressure is
______________
psia at sea leve
Answer: 14.7
◉ Refrigeration is defined as the movement of ___________________
from a area where its not wanted, to an area where it is less
objectionable.
Answer: heat
◉ As refrigerant absorbs heat, it changes from a
__________________ to a _______________
.
Answer: liquid vapor
◉ Superheat vapor is a gas that has been heated to a temperature
____________
its saturation point.
Answer: above
,◉ During the heating cycle, the outdoor coil of a heat pump become
the ___________________
Answer: evaporator
◉ During the cooling cycle, the indoor coil of a heat pump becomes
the _____________
Answer: evaporator
◉ When a heat pump system goes into defrost mode, what process
takes place so that system can continue to provide heat to the
structure?
Answer: aux heat
◉ A measurement of the speed or motion of molecules in a
substance called.
Answer: temperature
◉ Name two common temperature scales used to measure air
temperature.
Answer: Celsius,
Fahrenheit
,◉ What does ambient mean?
Answer: tempature surrounding an area or object
◉ What is a wet bulb temperature used for?
Answer: to measure the moisture in the air and air temp
◉ What is dew point?
Answer: point at which condensation occurs.
◉ What is pressure?
Answer: force per unit area
◉ What does PSIG stand for?
Answer: per square inch gauge
◉ The three methods of heat transfer are
Answer: convection, conduction
, and radiation
.
◉ Heat always travel from
Answer: hot to cold
, ◉ What method does refrigerant reject heat
Answer: condenser
◉ What is the pressure of 410A at 30
F?
Answer: 97.5
◉ What is the temperature of 410A at 418 psig
Answer: 120
◉ In order list the three processes that refrigerant goes through in
the condenser
Answer: desuperheat, vapor to liquid, and subcooled
◉ In order list the two processes that refrigerant goes through in the
evaporator
Answer: evaporation, then vaporized.
◉ What are the differences between a heat pump and regular air
conditioner?
