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HVACR Journeyman Practice Exam Quizzes & Ans!!
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HVACR Journeyman Practice Exam Quizzes & Ans!!
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Name: Score:36 Multiple choice questions
Term 1 of 36
When using an electronic leak detector, the sensor probe _______.
must remain stationary for accurate readings.
should be moved at a speed of 10 inches per second.
should be moved at approximately 1 inch per second.
can be waved around to cover more area.
Term 2 of 36
A 30 pound cylinder of reclaimed R-410A refrigerant has been stored over night at 70°F. What
should be the approximate pressure in the cylinder?
118 Psig
201 Psig
168 Psig
143 Psig
Term 3 of 36
What is the minimum clearance for access panels on an outdoor condensing unit?
24 inches
30 inches
3 inches
4 inches
, Term 4 of 36
Ester based oils are ________.
Synthetic Oil
Mineral Oil
Vegetable Oil
Natural Oil
Term 5 of 36
Two wire digital electronic thermostats are ________________.
Direct digital controls (DDC)
Data communicating type thermostats
Explanation: Some digital electronic thermostats can use a shielded 2 conductor cable with
a 1 positive and 1 negative connection between the indoor and out sections of a split
system.
To remove heat from the refrigerant.
It condenses
Term 6 of 36
The temperature rise method of determining air volume CFM is mostly used with a/an;
condensing oil fired boiler.
oil fired furnace.
electric resistive heat air handler.
to the low side of the system.
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