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Author Question: What is an opaque surface? A) A surface that light cannot pass through, such as walls B) A ... (Read 83 times)

vicotolentino

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on: Jul 24, 2018
What is an opaque surface?
 
  A) A surface that light cannot pass through, such as walls
  B) A surface that light can pass through, such as windows
  C) A surface that air cannot pass through
  D) A surface that is highly reflective

Question 2

Compared to reciprocating compressors, centrifugal compressors:
 
  A) Can operate at higher compression ratios. B) Can move a larger volume of refrigerant.
  C) Can work effectively on smaller systems. D) Can operate against higher head pressures.


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tuate

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

A

Answer to Question 2

B


vicotolentino

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Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


tuate

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Reply #3 on: Jul 24, 2018
Great! Please up vote :D


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