The acronym UL stands for ______.

A) Universal Laboratories.
B) Union of Laborers.
C) Underwriters Laboratories.
D) United Legislature.


C) Underwriters Laboratories.

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At least ____ inches of free conductor shall be left at each outlet, junction, and switch point.

A. 6 B. 8 C. 12 D. 18

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What is the reason for the hourglass shape that is used on the worm gear on some manual steering gear?

A. increases ratio during over-center operation B. increases ratio as steering cuts into a turn C. ensures less steering effort required for straight-ahead driving D. thicker teeth are required for greater force required to turn the vehicle

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Ceilings/roofs, walls, foundation, all HVAC ducts outside conditioned spaces are ________

A) Areas where vapor retarders are required by the IRC B) Areas which require a Grade 2 Insulation Installation C) Areas in which the IECC requires air sealing and insulation during construction D) Areas which require placement of an energy recovery ventilator

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A screw is a threaded fastener that does not use a nut and is screwed directly into a part.

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

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