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Author Question: Which of the following refrigerant piping techniques help to get oil to flow up a riser in a suction ... (Read 58 times)

kodithompson

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on: Jul 24, 2018
Which of the following refrigerant piping techniques help to get oil to flow up a riser in a suction line?
 
  a. Selecting a line size that results in a very low velocity.
  b. Selecting a line size that is one or two sizes larger than the rest of the line.
  c. Installing a trap at the bottom of the riser.
  d. Installing a liquid-to-suction heat exchange

Question 2

For an evaporator coil to transfer the maximum amount of heat, _____.
 
  a. the fin spacing should be very wide
  b. all of the surface area inside the tubes needs to be covered in flashing liquid
  c. the coil temperature should always be higher than the dew point of the air
  d. the subcooling of the entering refrigerant should be kept to a minimum


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Jordin Calloway

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

c

Answer to Question 2

b


kodithompson

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Reply 2 on: Jul 24, 2018
Excellent

carojassy25

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Reply 3 on: Yesterday
Wow, this really help

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