HVACR Journeyman Practice Exam Questions and Correct Answers.

HVACR Journeyman Practice Exam Questions and Correct
Answers
Question 1
A refrigerant release heat when __________.
Correct Answer
It condenses



Question 2
Two wire digital electronic thermostats are ________________.
Correct Answer
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.



Question 3
The temperature rise method of determining air volume CFM is mostly used with a/an;
Correct Answer
electric resistive heat air handler.




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, Question 4
When using an electronic leak detector, the sensor probe _______.
Correct Answer
should be moved at approximately 1 inch per second.



Question 5
What is the movement of heat through space called?
Correct Answer
Radiation



Question 6
The automatic expansion valve (AEV) maintains a constant ______ in the evaporator.
Correct Answer
Pressure



Question 7
Ester based oils are ________.
Correct Answer
Synthetic Oil




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