Pneumatic controls must have a permanent air supply that is ____.
A) clean and moist
B) clean and warm
C) warm and dry
D) clean and dry

Question

Quizplus · Accepted Answer

Pneumatic controls require a clean and dry air supply to ensure their proper functioning. Moisture or humidity in the air supply can lead to rust and corrosion, which can cause damage to the control components. Similarly, warm or heated air can cause expansion and contraction in the control lines, leading to leaks and inaccurate readings. Hence, a clean and dry air supply is mandatory for the safe and efficient operation of pneumatic controls.

Pneumatic Controls Must Have a Permanent Air Supply That Is