Technician A says older vehicles use R134a refrigerant gas. Technician B says the oil used in R134a is an alkaline glycol oil. Who is correct?

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


D. Neither Technician A nor B

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A litter usually consists of 2-3 mice

Indicate whether the statement is true or false

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When lighting fixtures are installed in exposed or concealed locations under metal-corrugated sheet roof decking there must be at least a _____ inch space between the lowest surface of the roof decking to the top of the light fixture.

a. 1 b. 1.5 c. 2 d. 3

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Why is a polyimide film ideal in a very high-temperature electrical application, even one in which the film may be slowly degraded?

What will be an ideal response?

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Lettering is used on an architectural drawing to provide written information.

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

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