When a two way control valve reduces the flow through the coil by ...

[joe]

When a two way control valve reduces the flow through the coil by
 
  A) opening and closing in pulses to vary the flow
  B) closing and reducing the flow through the circuit
  C) sending some of the flow backwards in the direction it came from
  D) allowing some of the flow to bypass around the coil

Question 2

Control valves used for steam heating coils are typically
 
  A) 2-way valves B) either 2 way or 3 way valves
  C) 3-way valves D) 4-way valves

[vickybb89]

Answer to Question 1

B

Answer to Question 2

A

[joe]

TYSM

[amit]

Thanks for the timely response, appreciate it