The efficiency of any device can be no greater than ____%.

a. 85
b. 90
c. 99.9
d. 100

d. 100

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____-actuated drivers are used to drive specially designed pins into masonry or steel.

a.Pneumatic b.Powder c.Battery d.Hand

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Standard manufactured dome or square pans are either 19" × 19" or _____.

a. 24" × 24" b. 30" × 30" c. 36" × 36" d. 48" × 48"

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The air flow on most structures that use a fossil fuel for a heat source have a(n) ____________________ that would be used as an air supply.

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

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Technician A says gasoline can be used as a cleaning solvent. Technician B says it is safe to weld near an empty fuel tank. Who is correct?

A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B

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