OSHA requires the use of guardrails, safety nets, or personal fall arrest systems to prevent workers from

falling more than _____.

a. 4 feet
b. 6 feet
c. 8 feet
d. 10 feet


b

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Steel reinforcement in the footing is required for most houses and small commercial buildings.

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

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When the cocoon is finished and the larva is completely covered, it begins the next stage of _______________________ and converts to a pupa

Fill in the blank(s) with correct word

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Why do water-source units not require suction line accumulators or charge compensators?

A) The water-source unit's capacity is less variable because the water being supplied to it must be moderate in temperature. B) The ground loop stores refrigerant, eliminating the need for line accumulators and charge compensators. C) The fact that water and refrigerant always travel in opposite directions eliminates the need for line accumulators and charge compensators. D) The charge for water source systems is less critical.

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Unidirectional provers use ________ valves

A) block-and-bleed B) inlet C) interchange D) flow-reversing

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