Which of the following is/are true about belt-driven positive displacement blowers?

A. Heavy boost blowers use a cogged belt to eliminate slippage. 
B. ?A cogged blower drive belt takes the place of a vibration damper.
C. ?All of the above
D. ?None of the above


Answer: C

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Los transformadores de corriente están conectados______ la barra conductora.

a. en serie con b. a lo largo de c. alrededor de d. en paralelo con

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The electrical energy supplied to an electrical circuit is called ____________________, and it is measured in volts.

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

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Technician A says the gears in a planetary gearset are in constant mesh. Technician B says a planetary gearset has a ring gear and pinion gears. Which technician is? correct?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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When the target is within the detection range of an inductive proximity detector, its oscillator __________.

A. stops running B. begins to run

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