Technician A says Schrader-type valves on refrigerant system service fittings self-seal when the manifold hoses are removed. Technician B says HFC-134a manifold hoses use quick disconnect couplers for attaching to the refrigerant system service fittings. Who is correct?

A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B


Answer: C

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a. one c. three b. two d. four

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Sometimes the green construction definition sounds complicated.

Answer the following statement true (T) or false (F)

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Fill in the blank(s) with the appropriate word(s).

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