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Author Question: How does an ultrasonic-type leak detector work? A) It sees the disturbance in the air surrounding ... (Read 61 times)

CharlieWard

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on: Jul 24, 2018
How does an ultrasonic-type leak detector work?
 
  A) It sees the disturbance in the air surrounding the leak.
  B) It uses Bluetooth wireless technology.
  C) It hears the high-pitched sound of escaping gas.
  D) It uses sonar to look for imperfections in the tubing and fittings.

Question 2

In which system does less refrigerant enter the cylinder for each compression cycle, requiring more horsepower for each BTU of cooling?
 
  A) A low-evaporator-temperature system B) A high-condenser-temperature system
  C) A high-evaporator-temperature system D) A low-condenser-temperature system


matt

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

C

Answer to Question 2

A


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