The smallest incremental markings on analog gauges designed for ...

[OSWALD]

The smallest incremental markings on analog gauges designed for R-410A are generally:
 
  A) 10 psi. B) 20 psi. C) 5 psi. D) 1 psi.

Question 2

What opens and closes the valves in a reciprocating compressor?
 
  A) Pressure difference across the valves B) Hydraulic valve lifters
  C) A cam shaft D) The piston pushes them open.

[adammoses97]

Answer to Question 1

C

Answer to Question 2

A

[OSWALD]

Thanks for the timely response, appreciate it

[coreycathey]

Gracias!