Which class of smoke damper exhibits the lowest amount of leakage?

a. Class 1
b. Class 2
c. Class 3
d. Class 4


a. Class 1

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?Technician A says that oil pressure that fluctuates from high to low can be caused by a sticking oil pump pressure relief valve. Technician B says that a stuck-closed pressure relief valve will result in high oil pressure at idle (at normal operating temperature). Who is right?

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

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Which of these would probably have about 10 grams of mass?

A) Valve cover B) Car battery C) Automotive fuse D) Wing nut

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If the current in a circuit equals 0 A, it is likely that the ________

A) circuit is open B) circuit has a short C) voltage is too high D) resistance is too low

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The location of the node a message is intended for is determined by a unique                address it possesses.

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

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