Approximately _______ of the time a confined space has an oxygen deficiency.
Fill in the blank(s) with the appropriate word(s).
50%
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Pug mills can be either _____.
a. pulled or pushed b. wheeled or tracked c. horizontal or vertical d. stationary or portable
Answer the following statement(s) true (T) or false (F)
1.A receptacle outlet controlled by a wall switch is permitted to serve as a lighting outlet in kitchens. 2.The NEC® allows Class 2 control wiring to be supported by the raceway that supplies power to the piece of equipment (like a furnace) that the control wiring is associated with. 3.Sheetrock, a popular building material used to finish off walls and ceilings in residential and commercial construction, is also referred to as wallboard. 4.Conductors used in residential wiring can be copper, aluminum, or copper-clad aluminum. 5.Section 300.20(A) requires conductors carrying alternating current and installed in ferrous (iron) metal boxes to be arranged to avoid heating the surrounding metal by magnetic induction. 6.Receptacles are not required on a wall directly behind a range, counter-mounted cooking unit, or sink unless there is more than 12 inches of space behind one of these items and the wall.
A piston dish has a volume of 8.7 ccs. Convert this volume to and round to the nearest hundredth
A) 6.45 in^3 B) 3.43 in^3 C) 0.62 in^3 D) 0.53 in^3
The spring rate of a spring is measured in units of ________
A) psi B) lb. per inch C) ft. -lb. D) in. -lb.