× Didn't find what you were looking for? Ask a question
  
  
Top Posters
Since Sunday
26
14
o
10
j
7
s
7
R
7
e
6
6
b
6
f
6
s
6
j
5
New Topic  
heyoplshelp heyoplshelp
wrote...
Posts: 520
Rep: 0 0
4 years ago
What is an electrical load?
 
  A) An electrical device that requires power to operate
  B) A problem in a circuit that makes the electricity work harder, reducing efficiency
  C) Any device in an electrical circuit
  D) The power coming into a unit, usually labeled L1 and L2



[Ques. 2] If the low-side test pressure is not known, the maximum pressure that should be used for leak testing an R-22 refrigeration system with hermetic compressor is:
 
  A) 250 psig. B) 300 psig. C) 200 psig. D) 150 psig.



[Ques. 3] Which of the following is a device that does not switch motor contactors and starters on and off but instead are used to directly start motors?
 
  A) Thermostat B) Heavy-duty relay C) Light-duty relay D) Pulley



[Ques. 4] Two variables that have a great impact on the system performance of air-conditioning systems are:
 
  A) High-side pressure and airflow across the condenser.
  B) Airflow across the condenser and condenser water flow.
  C) High-side pressure and condenser water flow.
  D) Return-air wet-bulb temperature and the airflow across the evaporator.



[Ques. 5] Using the liquid-line ambient temperature approach method to check the charge, if the liquid line is cooler than specified:
 
  A) The amount of charge in the system does not affect the liquid-line temperature.
  B) The system is overcharged.
  C) The system is charged correctly.
  D) The system is undercharged.
Read 36 times
3 Replies

Related Topics

Replies
wrote...
4 years ago
1)  A

2)  D

3)  B

4)  D

5)  B
heyoplshelp Author
wrote...
4 years ago
Confirmed correct!
wrote...
4 years ago
Cool, thanks for replying back
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  295 People Browsing
 291 Signed Up Today
Related Images
  
 1128
  
 214
  
 79
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 170