The ring around the 6GR all-position pipe is there to ________ ...

[evelyn o bentley]

The ring around the 6GR all-position pipe is there to ________ the operation.
 
  A) Restrict
  B) Balance
  C) Hold heat for
  D) Improve
  E) None of the above

Question 2

Electro-mechanical control systems operate by
 
  A) processing electronic signals with a microprocessor
  B) providing a varying DC voltage in response to monitored conditions
  C) turning relay coils on or off to complete circuits
  D) providing a modulating air pressure in response to monitored conditions

[trog]

Answer to Question 1

A

Answer to Question 2

C

[evelyn o bentley]

YES! Correct, THANKS for helping me on my review

[komodo7]

Thanks for the timely response, appreciate it