Which of the following is not a type of relay?

A. time-delay
B. latching
C. double-throw
D. diffuse


Answer: D

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Class III locations are areas that contain combustible ____.

A. dusts B. gases C. fibers D. vapors

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For signal sequence si = (5, -2, 3) and SNR = 20 dB, the noise SD ?N = _____x.xx).

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

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A document that outlines all weight, rigging, and configuration requirements for a lift is a _____.

a. final lift plan b. manufacturer's worksheet c. pre-lift qualification d. load chart

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?Chromium-molybdenum steel welds have a tensile strength of ____ psi.

A. ?10,000 to 25,000 B. ?30,000 to 45,000 C. ?60,000 to 80,000 D. ?90,000 to 100,000

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