Author Question: What is the main purpose of the fins on tube-and-fin evaporators? A) Fins protect the coil from ... (Read 83 times)

audie · **on:** Jul 24, 2018

What is the main purpose of the fins on tube-and-fin evaporators?

A) Fins protect the coil from being punctured by projectiles.
B) Fins direct the condensed water to the drain pan.
C) Fins direct the air more smoothly across the coil.
D) Fins increase the surface area of the coil.

Question 2

One way to reduce the amount of refrigerant spray when connecting and disconnecting refrigeration hoses from Schrader valves is to:

A) Loosen the end of the hose on the gauge manifold and slowly release the pressure.
B) Make sure the system is operating before connecting or disconnecting from the high side.
C) Use positive shutoff hoses.
D) Pinch the hose closed behind the fitting with a pair of pliers before removing the hose.