In order to keep some hot oil flowing backwards through a standby pump and around the discharge check valve, it is important that the ____________ valve be left open.
a) bypass
b) suction
c) automatic
d) pneumatic
e) relief
Answer: B
In order to keep some hot oil flowing backwards through a standby pump and around the discharge check valve, it is important that the ____________ valve be left open.
a) bypass
b) suction
c) automatic
d) pneumatic
e) relief
Answer: B