1|Page
HVAC Final Exam ||Verified Exam!!!|| Most Recent
Exam Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded
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to transfer refrigerant from a bulky Supply cylinder to a 30
lb capacity reusable cylinder the technician should
___________ the service cylinder - Answer-warm
and infinity reading on the ohmmeter Meter indicates a -
Answer-open circuit
the main purpose of the condenser is to - Answer-change
refrigerant Vapor to a liquid
a vibration Eliminator would be located in a line near the -
Answer-compressor
a device that may open if there is an extremely dirty
condenser and the system does not have the proper
safety control is the - Answer-pressure relief valve
,2|Page
which of the following is most important to observe when
installing a dryer in a system - Answer-the direction of flow
through the dryer
the most important step of installing a service manifold on
a unit is to - Answer-Purge the hoses
which of the following conditions will not cause a high
discharge pressure - Answer-dirty evaporator
how does a sight glass moisture indicator show the
presence of moisture in a system - Answer-changes color
which system component will moisture affect first -
Answer-condenser
which of the following will not cause low suction pressure -
Answer-an charged overcharge of refrigerant
the catalog listing for T fittings shows the following
measurements 1/2 x 3/8 x 1/4 what is the dimension of the
branch of the T - Answer-1/4 inch
, 3|Page
a R12 refrigeration unit is operating in an ambient of 90
degrees Fahrenheit the discharge pressure should be very
close to - Answer-168 psig
a full refrigerant cylinder is stored in the area where the
temperature is 80 degrees Fahrenheit the cylinder
pressure is 143 PSIG the refrigerant is - Answer-R22
if the filter drier becomes restricted the best way to detect
this is by - Answer-checking the tea with a thermometer to
see if the outlet is cooler than the inlet
which of the following statements is false regarding the
high side charging pressures - Answer-the refrigerant is
added as a vapor
you are using the unit compressor to remove refrigerant
from the system all manifold and system values are
properly position what action should you take if the
discharge pressure Rises rapidly - Answer-turn the
discharge service valve towards the back seat
HVAC Final Exam ||Verified Exam!!!|| Most Recent
Exam Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded
A+ | Guaranteed Success!! Newest Exam!!!
to transfer refrigerant from a bulky Supply cylinder to a 30
lb capacity reusable cylinder the technician should
___________ the service cylinder - Answer-warm
and infinity reading on the ohmmeter Meter indicates a -
Answer-open circuit
the main purpose of the condenser is to - Answer-change
refrigerant Vapor to a liquid
a vibration Eliminator would be located in a line near the -
Answer-compressor
a device that may open if there is an extremely dirty
condenser and the system does not have the proper
safety control is the - Answer-pressure relief valve
,2|Page
which of the following is most important to observe when
installing a dryer in a system - Answer-the direction of flow
through the dryer
the most important step of installing a service manifold on
a unit is to - Answer-Purge the hoses
which of the following conditions will not cause a high
discharge pressure - Answer-dirty evaporator
how does a sight glass moisture indicator show the
presence of moisture in a system - Answer-changes color
which system component will moisture affect first -
Answer-condenser
which of the following will not cause low suction pressure -
Answer-an charged overcharge of refrigerant
the catalog listing for T fittings shows the following
measurements 1/2 x 3/8 x 1/4 what is the dimension of the
branch of the T - Answer-1/4 inch
, 3|Page
a R12 refrigeration unit is operating in an ambient of 90
degrees Fahrenheit the discharge pressure should be very
close to - Answer-168 psig
a full refrigerant cylinder is stored in the area where the
temperature is 80 degrees Fahrenheit the cylinder
pressure is 143 PSIG the refrigerant is - Answer-R22
if the filter drier becomes restricted the best way to detect
this is by - Answer-checking the tea with a thermometer to
see if the outlet is cooler than the inlet
which of the following statements is false regarding the
high side charging pressures - Answer-the refrigerant is
added as a vapor
you are using the unit compressor to remove refrigerant
from the system all manifold and system values are
properly position what action should you take if the
discharge pressure Rises rapidly - Answer-turn the
discharge service valve towards the back seat
