Correct answer
D. Is a directional control valve
Explanation
The correct answer is Is a directional control valve.
A saturated vapor on being compressed would________?
Volatile matter content in coking coal may be about ________ percent?
Inside the distillation columns, the ________?
Strain hardening effect in a metal subjected to cold working is due to the ________ mechanism?
Case hardening of a material is________?
Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in ________ tower?