A mat of reinforcing bars used in a slab is usually supported above the subgrade at a distance of _____.
a. 3 inches
b. 4 inches
c. 5 inches
d. 6 inches
a. 3 inches
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The exhaust blower unit consists of a three-horsepower, three-phase, 208-volt motor driving a propeller-type fan through a(n) ____ drive.
A. V-belt B. direct C. O-ring D. conveyer
The motor is driving a constant torque load at a speed of 570 rpm.
A 500-hp, three-phase, 2200 V, 60-Hz, 12-pole, Y-connected, wound-rotor
induction motor has the following parameters:
a. Calculate the load torque.
b. Calculate the motor speed when the source frequency is increased to 70 Hz.
c. Calculate the change in starting torque due to the frequency change.
You use the ____________________ command to loop through a range of values.
Fill in the blank(s) with the appropriate word(s).
An automobile costs $8,000.00 and is sold at a profit of 10% on the cost price. What is the profit?
A. $750 B. $800 C. $850 D. $900