Which of the following describes the MOST common type of electrical wiring used in instrument lighting?

A. Aluminum stranded type
B. Copper stranded type
C. Twisted pair type
D. Solid copper type


Ans: B. Copper stranded type

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How much key stock remains in the scrap pile, in inches?

The inventory of a scrap pile is as follows: Channel iron, 87” Plate steel, 147” Key stock, 45” Pipe, 69” Flat iron strap, 208” A pipe support is welded using the following materials from the scrap pile: Channel iron, 61” Plate steel, 106” Key stock, 39” Pipe, 22” Flat iron strap, 189”

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To make threading electrode wire easier, ____.

A. straighten about 12 in. (305 mm) of the end of the wire and cut off any kinks B. cut off about 12 in.(305 mm) of the end of the wire C. cut off about 2 in.(50 mm) of the end of the wire D. straighten about 2 in.(50 mm) of the end of the wire and cut off any kinks

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Clay pots are porous so overwatering is not a problem

Indicate whether the statement is true or false

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Natural gas has a natural garlic-like smell.

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

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