Which failure could cause nothing to happen when the thermostat is set to heat?

A) A bad igniter B) A defective draft switch
C) A broken heat anticipator on the thermostat D) A bad gas valve


C

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Class 2 or Class 3 conductors may be installed within enclosures including electric light and power circuits provided _________.

A. The Class 2 and Class 3 circuits are installed as Class 3 and they maintain ¼” separation B. They are installed as Class 1 circuits C. The Class 1 circuits are functionally associated and maintain ¼’ separation D. All the above

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This is a typical use for a duo cone type seal:

a. sealing hydraulic hoses b. sealing final drive hubs c. sealing turbocharger shafts d. sealing bucket pins

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Standard atmospheric pressure at sea level with a temperature of 59°F is:

A) 14.7 psig or 29.92 in Hg. B) 29.92 psig or 14.7 psia. C) 14.7 psia or 29.92 in Hg. D) 29.92 psia or 14.7 in Hg.

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A(n) ____________________ computer system, or PC, is usually a stand-alone machine, such as a desktop or laptop computer.

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

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