Technician A says blocking rings are often made of brass or bronze because of the high heat produced by friction. Technician B says some synchronizer rings can contain powdered metal, Kevlar, and organic frictional materials. Who is correct?
A. A only
B. B only
C. both A and B
D. neither A nor B
Answer: C
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The NEC® requires that all octagon boxes have a minimum depth of _____.
a. 1/4" b. 1/2" c. 1-1/4" d. 1-1/2"
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Washers serve as a cushion or a bearing surface for a bold head or nut.
Answer the following statement true (T) or false (F)
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A vertical drive can cause problems because ____ tends to pull the belts away from the lower sheave.
a. rotation b. gravity c. speed d. wind
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A word address in PLC memory containing a decimal value from a real-world input device such as a temperature sensor, or pressure transmitter is a(n) ____________________.
What will be an ideal response?
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