Airflow control valves in the ventilation duct work are operated by ______.
A)electric motors
B)vacuum motors
C)cables
D)all answers are correct

Name: Airflow control valves in the ventilation duct work are operated by ______. A)electric motors B)vacuum motors C)cables D)all answers are correct
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Question

Quizplus · Accepted Answer

Airflow control valves in ventilation ductwork can be operated by electric motors, vacuum motors, or cables, making all the provided options correct.

Airflow Control Valves in the Ventilation Duct Work Are Operated