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Author Question: Which of the following is a device that does not switch motor contactors and starters on and off but ... (Read 42 times)

james0929

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on: Jul 24, 2018
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

Question 2

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.


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maya.nigrin17@yahoo.com

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

D


james0929

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Reply #2 on: Jul 24, 2018
Thanks


maya.nigrin17@yahoo.com

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Reply #3 on: Jul 24, 2018
Welcome :)


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