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Exam (elaborations)

HVACR Journeyman Practice Exam Quizzes & Ans!!

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HVACR Journeyman Practice Exam Quizzes & Ans!!

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  • August 31, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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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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