The light source of a photoelectric sensor used in a long distance sensing application is ________
A) An incandescent lamp B) A light emitting diode
C) A photo cell D) A laser
D
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Which of the following is most likely to use dynamic braking?
a. Circular saw b. Forklift c. Machine tool d. Safety brake
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Why shouldn’t a pregnant woman handle a cat’s litter box?
What will be an ideal response?
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Inductors ________
A) pass direct current B) have a high resistance to direct current C) have high reactance to direct current D) block direct current
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What is required in electronic settings to prevent equipment and signals from propagating interference and to protect equipment and signals from the effects of interference propagated by other devices?
a. Bonding. b. Shielding. c. Annealing. d. Grounding.
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