One advantage that steam systems have over hot water systems is ...

[littleanan]

One advantage that steam systems have over hot water systems is that steam systems do not require:
 
  A) TXV valves. B) Circulating pumps.
  C) Bypass valves. D) Compressor unloaders.

Question 2

How is the subcooling of an air-conditioning system affected by a restriction in the liquid line?
 
  A) The subcooling will be below normal.
  B) The subcooling will be above normal.
  C) The subcooling will not be affected by a low refrigerant charge.
  D) The subcooling will fluctuate erratically.

[Jody Vaughn]

Answer to Question 1

B

Answer to Question 2

B