Author Question: The primary method of varying the speed on a DC shunt motor is to adjust the voltage and current on ... (Read 195 times)

fasfsadfdsfa · **on:** Jul 24, 2018

The primary method of varying the speed on a DC shunt motor is to adjust the voltage and current on the field
winding or the _____.

a. rheostat
b. armature
c. controller
d. stator key

Question 2

For a constant-torque load, the horsepower increases and decreases _____.

a. in direct proportion to the speed
b. as the cube of the speed
c. in inverse proportion to the speed
d. as the square of the speed