Technician A says that the presence of oil around a fitting of an air-conditioning line may indicate an oil leak but not a refrigerant leak. Technician B says that using an electronic leak detector is the best way to find the source of a refrigerant leak. Who is correct?

A. Tech A
B. Tech B
C. Both
D. Neither


Answer: B. Tech B

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This drawing is a representation of ________.



A) A potentiometer
B) A relay
C) An ignition coil
D) A vacuum switch

Trades & Technology

Practicing the five “Ps” – prepare, pinpoint, personalize, picture, and portray – is an effective method for _____.

a. conducting successful safety talks b. preventing all construction injuries c. illustrating effective equipment operation d. requiring new personal protective gear

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Technician A says there are no brake lathes that can machine rotors on the vehicle. Technician B says drums may be removed from the vehicle to be machined. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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Explain what the comprehensive component monitor is.

What will be an ideal response?

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