In an area where freezing drizzle is common in winter, which ...

[justinmsk]

In an area where freezing drizzle is common in winter, which defrost interval stands the best chance of
  keeping a heat pump outdoor coil free of frost?
 
  a. 30 minutes
  b. 60 minutes
  c. 90 minutes
  d. 120 minutes

Question 2

In the heating mode, a leaking check valve on the indoor coil will show up as _____.
 
  a. a noisy compressor
  b. a chattering check valve
  c. normal operation
  d. low head pressure

[efwsefaw]

Answer to Question 1

a

Answer to Question 2

c

[justinmsk]

Wow, this really help

[nathang24]

Thanks for the timely response, appreciate it