Ultrasonic occupancy sensors are triggered by __

a. heat
b. light
c. motion
d. sound


c. motion

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Contacts can be permitted to slowly close or open.

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

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An infection of the milk-secreting glands of cattle, goats, and other milk-producing animals is known as:

a. coccidiosis c. mastitis b. impatiens d. antibody

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A power steering pressure switch sends a signal to the powertrain control module, indicating higher engine speed is needed during sharp cornering at slow speeds

Indicate whether the statement is true or false

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The output of a three input (A, B, and C) AND gate is connected to a two input OR gate. A second input to the OR gate is labeled D. The Boolean expression representing this logic circuit is:

A) X = (A + B + C) + D B) X = ABC + D C) X = (A + B + C) D D) X = (ABC)D

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