What are the three factors that determine the amount of torque developed by a three phase induction motor?
What will be an ideal response?
Three factors that determine the amount of torque developed by a three phase induction motor are:
1) Strength of the magnetic field of the stator
2) Strength of the magnetic field of the rotor
3) Phase angle difference between rotor and stator flux
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Por lo general, los repisones están hechos de maderos de ______.
a. 1 × 4 b. 2 × 4 c. 2 × 6 d. 2 × 10
Which way would the adjusting stem on an expansion valve be turned to decrease superheat?
What will be an ideal response?
With regard to a transistor, when the base-emitter junction is forward biased and the collector-base junction is reverse biased, operation is
A) at bias B) at cutoff C) in the active region D) at saturation
Consider the duct system shown in the accompanying figure. Air flows through two 8- in.-by-10-in. ducts that merge into a 18-inch-by-14-inch duct. The average speed of the air in each of the 8 x 10 duct is 30 ft/s. What is the volume flow rate of air in the 18 × 14 duct? Express the volume flow rate in ft^3/s, ft^3/min, and m3/s. What is the average speed of air in the 18 ×14 duct?
