Question

The lubricator in a pneumatic circuit is the:

(a) First element in line

(b) Second element in line

(c) Last element in line

(d) Third element in line

This question was addressed to me during a job interview.

This key question is from Pneumatic Systems topic in chapter Control System and Components of Control Systems

Answer 1

Right option is (c) Last element in line

To explain I would say: The lubricator is the fluid that is used to lubricate the parts of the pneumatic circuits to reduce the friction and lubricator in a pneumatic circuit is the last element.