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Author Question: One disadvantage of infrared thermometers is that they: A) Are generally less accurate than ... (Read 44 times)

luminitza

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on: Jul 24, 2018
One disadvantage of infrared thermometers is that they:
 
  A) Are generally less accurate than dial-type pocket thermometers.
  B) Can only read the temperature of objects.
  C) Are only available in limited quantities due to their specialized nature.
  D) Take longer to get a reading than other types of thermometers.

Question 2

A refrigeration system was checked for leaks. The system temperature and surroundings were 75F when the system was charged with nitrogen to 100 psig. The temperature then dropped to 50F. What should the pressure be if no nitrogen has escaped?
 
  A) 9 psig B) 94 psig C) 100 psig D) 90 psig


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krakiolit

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

B

Answer to Question 2

B


luminitza

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Reply #2 on: Jul 24, 2018
TY


krakiolit

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Reply #3 on: Jul 24, 2018
You're welcome


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