A mat of reinforcing bars used in a slab is usually supported above the subgrade at a distance of _____.

a. 3 inches
b. 4 inches
c. 5 inches
d. 6 inches


Answer: A

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What kind of line is the line identified as C shown in Figure 1?

a. Extension line
b. Cutting plane line
c. Dimension line
d. Center line

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Si el peso supera al que figura en las especificaciones del fabricante, _____ puede/n provocar una falla del mástil.

a. los contrapesos b. una sección de la pluma c. las bandas de la oruga d. el brazo

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The branch-circuit ____________________ current is the current to be used in sizing branch-circuit conductors, disconnects, controllers, branch-circuit, short-circuit and ground-fault protection.

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

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Employers who are subject to OSHA recordkeeping requirements must maintain a log of recordable

occupational injuries and illnesses for _____. a. 3 years b. 5 years c. 7 years d. as long as the company is in business

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