The component of a knockout punch that is used in conjunction with the cutter to make a hole in a metal electrical box is called a ____________________.
Fill in the blank(s) with the appropriate word(s).
die
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When servicing a vehicle with an air suspension system, the air suspension switch must be turned OFF:
A. When jacking the vehicle to change a tire B. When lifting the vehicle for any reason C. When performing services to the suspension system. D. All of the above
Determine the tensile stress imposed at night by a wheel load of 750 lb located at the edge of a concrete pavement with the following dimensions and properties.
Pavement thickness = 8.5 inches ? = 0.15 Ec = 4.2 × 106 lb/in2 k = 200 lb/in3 Radius of loaded area = 3 inches What will be an ideal response?
Refrigerants absorb heat:
A) By converting heat energy into additional refrigerant molecules. B) By rearranging their molecular structure to form a new compound. C) By evaporating from a liquid to a vapor. D) By condensing from a vapor to a liquid.
If you change motor terminal T1 to L2 of the supply voltage and terminal T2 to L1 of the supply voltage, the three-phase motor will ________
A) change the direction of its rotation B) not run correctly because it must be wired L1 to T1, L2 to T2, and L3 to T3 C) be able to run on 240 V AC instead of 480 V AC