A rectifier is a component that converts AC to DC by allowing the current to be ____.

A. increased
B. decreased
C. removed
D. all positive or all negative


Answer: D

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Gears are rugged and durable and can transmit power with up to _____ efficiency with long service life.

A. 80% B. 90% C. 98% D. 100% E. none of the above

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The labile and protected pools of organic matter have similarities in chemical structure. The protected nature of the protected humus is one reason its decomposition is slower

Indicate whether the statement is true or false

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Freeze branding leaves nonpermanent marks on animals.

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

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Split-phase motors intended to operate in the open accomplish this by the use of a(n) ____________________ switch connected to the shaft of the rotor.

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

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