CDC: 3E151 - HVAC/R JOURNEYMAN VOLUME 5 EXAM
QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
VERIFIED LATEST UPDATE
(801) How much sensible heat
is added if the temperature
10 F of air increases from 70
to 80 F
(801) What occurs during the latent
heat of Vapor
turns to a liquid condensation?
,(801) What determines the pressure
required to achieve a Design of the
piping system specific flow rate?
(802) What three processes take place in the condenser?
Desuperheating, condensing, and
subcooling
(802) The heat being absorbed in the evaporator
comes product being cooled
or the conditioned space from the
(803) What happens to the exhaust valve of a
compressor Backpressure from
the high side closes it during the intake stroke?
(803) What effect do fins on the shell of a compressor
Increase surface area and allow
more heat transfer with ambient air have?
(803) What does a check valve in the
discharge line Gas from leaking
, back to compressor prevent with a rotary
compressor?
(803) Why must you be careful when placing meter leads
This is the weakest section of the
compressor and a blowout could occur on compressor
terminals?
(803) What is the result of a loose
electrical connection at
Increased heat the compressor
terminal?
(803) Where are internal motor
protection devices In or near the
motor windings embedded?
(804) Desuperheating generally takes place in the discharge line and
first few coils of the condenser
(804) Non-condensables
inside a refrigeration system
QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
VERIFIED LATEST UPDATE
(801) How much sensible heat
is added if the temperature
10 F of air increases from 70
to 80 F
(801) What occurs during the latent
heat of Vapor
turns to a liquid condensation?
,(801) What determines the pressure
required to achieve a Design of the
piping system specific flow rate?
(802) What three processes take place in the condenser?
Desuperheating, condensing, and
subcooling
(802) The heat being absorbed in the evaporator
comes product being cooled
or the conditioned space from the
(803) What happens to the exhaust valve of a
compressor Backpressure from
the high side closes it during the intake stroke?
(803) What effect do fins on the shell of a compressor
Increase surface area and allow
more heat transfer with ambient air have?
(803) What does a check valve in the
discharge line Gas from leaking
, back to compressor prevent with a rotary
compressor?
(803) Why must you be careful when placing meter leads
This is the weakest section of the
compressor and a blowout could occur on compressor
terminals?
(803) What is the result of a loose
electrical connection at
Increased heat the compressor
terminal?
(803) Where are internal motor
protection devices In or near the
motor windings embedded?
(804) Desuperheating generally takes place in the discharge line and
first few coils of the condenser
(804) Non-condensables
inside a refrigeration system
