An output coil instruction can be energized if the input condition in its rung does not provide a path for logic continuity.
Answer the following statement true (T) or false (F)
False
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A shaft is turned at 220 revolutions per minute with a tool feed of 1/16 inch per revolution. How many minutes does it take to cut a distance of 55 inches along the shaft?
A. 2 B. 2 1/2 C. 3 D. 4
An abundance of macropores in soils helps assure an abundance of oxygen in the soil
Indicate whether the statement is true or false
You choose to use a mercury (p = 13,500 kg/m3) manometer to check the accuracy of a pressure gage on a compressed nitrogen gas tank. The manometer is set up between the tank and the atmosphere, and the height difference for the mercury in the two legs is 1.52 m. The pressure gage to be checked reads a pressure of 275 kPa for the gage pressure of the tank. Is the pressure gage accurate?
Given: p = 13,500 kg/m3; L = 1.52 m; Pg = 275 kPa (measured) Assume: g = 9.81 m/s2
Water chillers require a(n) ____________________ in the chiller control circuit to ensure that the chilled water pump is operating before the water chiller refrigeration unit operates.
Fill in the blank(s) with the appropriate word(s).