What happens to the pressure as you move up or down along a ...

[clippers!]

What happens to the pressure as you move up or down along a constant enthalpy line?
 
  A) The pressure decreases as you move down.
  B) The pressure remains the same.
  C) The pressure is not related to vertical movement along the constant enthalpy line.
  D) The pressure decreases as you move up.

Question 2

Besides improving efficiency, insulating the suction line:
 
  A) Serves as a backup sealing system to prevent refrigerant loss.
  B) Reduces mechanical vibrations set up by the compressor.
  C) Prevents stray electrical current from traveling down the pipe.
  D) Prevents moisture from condensing on the line.

[ryansturges]

Answer to Question 1

A

Answer to Question 2

D

[clippers!]

Excellent

[jamesnevil303]

Gracias!