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Question 1 of 10

1. Heat that is transferred through electromagnetic waves is called?
A.
B.
C.
D.

Question 1 of 10

Question 2 of 10

2. A Thermocouple consists of 2 similar metals that are made to form a junction that output a ma?
A.
B.

Question 2 of 10

Question 3 of 10

3. The equipment in a refrigeration process that absorbs heat from the space to be cooled is called?
A.
B.
C.
D.

Question 3 of 10

Question 4 of 10

4. A refrigeration compressors internal overload under normal condition is normally closed.
A.
B.

Question 4 of 10

Question 5 of 10

5. A water treatment plant has a standby generator installed, when the AC mains go out how will the standby generator feed be switched to ensure all essential loads are powered?
A.
B.
C.
D.

Question 5 of 10

Question 6 of 10

6. What 3 pieces of information would you expect to find on the nameplate of a 3 phase refrigeration compressor motor?
A.
B.
C.
D.

Question 6 of 10

Question 7 of 10

7. Refer to the drawing below what does the grey band on the diode indicate? 

diodeq2
A.
B.
C.
D.

Question 7 of 10

Question 8 of 10

8. A boiler is not lighting off, the electrical maintainer witnesses the startup sequence, she notices that the gas valve opens and the sparker is energized and there is a flame but the start sequence times itself out, what is likely the problem?
A.
B.
C.
D.

Question 8 of 10

Question 9 of 10

9. In a residential forced air furnace what sends the signal asking for heat?
A.
B.
C.
D.

Question 9 of 10

Question 10 of 10

10. In a residential natural gas furnace what heats up to the ignition temperature of natural gas to allow ignition?
A.
B.
C.
D.

Question 10 of 10


 

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