Mercury bulb-controlled thermostats require that they are installed perfectly horizontal. The tool used to accomplish this is called a ____________________.

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


level

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Never climb a ______________ while it is leaning against the wall.

A. step ladder B. extension ladder

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Most outboard CV joints are held onto the driveshaft by using a ________ at the end of the shaft

A) Snap ring B) Circlip C) Cap screw D) Any of these

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When laying out a rectangular-shaped foundation, you know it's square if the diagonals are _____

a. equal b. longer than the shortest side c. shorter than the shortest side d. unequal

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Poles used to stabilize long extension ladders are called _____.

a. guy poles b. staypoles c. extension poles d. side poles

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