How is the relay (secondary) section of an FMVSS-121 compliant dual-circuit foot valve actuated when the air brake circuit is functioning properly?
A. pneumatically
B. mechanically
C. both mechanically and pneumatically
D. by foot pressure alone
Answer: A
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If a continuous connected load totals 120A, what is the minimum current-carrying capacity required for the feeder?
a. 150A b. 154A c. 170A d. 182A
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A diac does not conduct until a threshold ____ is reached.
A. inductance B. resistance C. current D. voltage
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Water lilies are of two types: hardy and tropical
Indicate whether the statement is true or false
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The proper tire inflation pressure is _______
A) The maximum pressure as shown on the sidewall of the tire B) As specified in the owner's manual C) As shown on the door placard D) Either B or C
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