The greatest advantage of using direct current motors is their _____ characteristic.

A. shuntless
B. constant speed
C. resistance-free
D. variable speed


Answer: D

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

Resistors manufactured by a certain process are labeled as having a resistance of 5 ?. A sample of 100 resistors is drawn, and 87 of them have resistances between 4.9 and 5.1 ?. a. The probability that a resistor has a resistance between 4.9 and 5.1 ? is 0.87. b. The probability that a resistor has a resistance between 4.9 and 5.1 ? is likely to be close to 0.87, but not exactly equal to 0.87.

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Which of the following does NOT form from the ectoderm?

a. Hooves c. Skin b. Muscles d. Hair

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All letters look better when their vertical alignment is:

a. perpendicular c. parallel b. horizontal d. slanted

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This would NOT normally be found in a hydraulic brake system:

a. mineral oil b. brake fluid c. air d. hydraulic oil

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