A pneumatic relay:
A. Is a set of electrical contacts pneumatically actuated
B. Is a signal booster
C. Is a pneumatic amplifier
D. Contains a regulator actuated by a bellows
Answer:C
A pneumatic relay:
A. Is a set of electrical contacts pneumatically actuated B. Is a signal booster C. Is a pneumatic amplifier D. Contains a regulator actuated by a bellows