An exothermic reaction:

a. requires heat
b. requires energy
c. gives off heat
d. destroys matter


Answer: C

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When using an extension ladder, you must not stand above the _____ rung from the top.

a. second b. third c. fourth d. fifth

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The ____________________ of an atom orbit around the nucleus.

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

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A MAP sensor is being tested. Technician A says that many MAP sensors act as a barometric pressure sensor when the ignition switch is turned off. Technician B says that on many MAP sensors the signal voltage should increase when the vacuum at the sensor decreases. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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Ozone is produced mainly by a process called ____________________.

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

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