Vertical slipforming is used primarily for structures with a height greater than _____
a. 100 feet
b. 80 feet
c. 50 feet
d. 40 feet
d
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Other isometric shapes can be sketched by adding to or subtracting from a basic isometric shape.
Answer the following statement true (T) or false (F)
The AHRI definition of standard air is:
A) 400 CFM per ton. B) air weighing 0.075 lb/ft3 at 70°F with a barometric pressure of 29.92 in Hg. C) 78% nitrogen, 21% oxygen, and 1% "other" gases. D) air at a temperature of 0°C with a relative humidity of 50%.
Answer the following statement(s) true (T) or false (F)
1. A distinguishing feature of the synchronous motor is that it runs without slip at a speed determined by the frequency of the connected power source and the number of poles it contains. 2. The rotor is excited by a source of direct current so that it produces simultaneous north and south poles. 3. Synchronous motors are constructed almost exactly like alternators. 4. AC loads generally have a lagging power factor. 5. A disadvantage of the synchronous motor equipped with a brushless exciter is that brush sparking is eliminated.
What is the role of the C preprocessor?
What will be an ideal response?