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Enhance your preparation for the C OF Q certification with our specialized flashcards. These study aids focus on key terms and essential knowledge, helping you to revise effectively and improve your understanding of the...

Questions: 28 | Attempts: 16 | Last updated: Aug 4, 2025

Sample Question 1
What could cause the lights to dim upon compressor start up?

Faulty wiring in the building

A malfunctioning breaker switch

An issue with the compressor motor

High voltage, hight current draw or low line voltage amp draw.

Sample Question 2
What will happen when the fan starts up, based on measurements taken at point A with a manometer and a velometer?

Both manometer and velometer pressure will go up.

Manometer pressure will go down. Velometer pressure will go up.

Manometer pressure will go up. velometer prssure will go down.

Both manometer and velometer pressure will go down.

Sample Question 3
Where is the correct location to install a P-trap on a double suction riser?

Discharge line

Larger suction line

At the top of the riser

Smaller suction line

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