If a malfunction in an electrical system results in improper system operation, the computer may minimize the effects by using ____ action.
A. fail hard
B. fail open
C. fail soft
D. fail closed
Answer: C
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Which of the following is a consequence of lack of lubrication in a pump?
A. Cavitation B. Overheating C. Personal safety hazard D. All of the above
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In the atmosphere, the naturally occurring CO level is about 0.2 ppm, which is not harmful to humans
Indicate whether the statement is true or false
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The most commonly used metal in agricultural mechanics is ____________________
Fill in the blank(s) with the appropriate word(s).
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Most DC motor control circuits use a ____ current relay (FCR) or field loss relay connected in series with the shunt field of the motor.
A. fire B. field C. fixed D. first
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