Proximity detectors are designed to detect the presence or absence of some object.

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


True

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The assembly made up of the stringers and vertical supports is called a stair ____.

A. carriage B. landing C. tread D. run

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How does a waste-spark ignition system fire the spark plugs?

A) The same plug always is fired with straight or reverse polarity. B) The polarity reverses at each firing (flip flops). C) The waste spark is sent to the cylinder next to the cylinder being fired. D) Both A and C

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The most likely result of field design modifications to equipment is

A) Increased equipment life B) Improved performance and efficiency C) Reduced capacity and efficiency D) Lower operating cost

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The operation of sigma-delta ADCs is based on a method called Nyquist sampling

Indicate whether the statement is true or false

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