ATT WEEK 12 (FC) | QUESTIONS AND
ANSWERS | VERIFIED BY EXPERT | 2025
NEW UPDATE.
Q1: Rigidity is determined by what three factors?
ANSWER ✔✔ Rotor shape, rotor weight, and rotor speed.
Q2: What is rotating machinery?
ANSWER ✔✔ Any machine that has a spinning or rotating shaft and uses electricity as the input
or output.
Q3: What are the two categories of rotating machinery?
ANSWER ✔✔ Motor and generator.
Q4: What device uses an electrical input and converts it to a rotating mechanical output?
ANSWER ✔✔ Motor.
Q5: What device uses a rotating mechanical input and converts it to an electrical output?
ANSWER ✔✔ Generator.
Q6: What type of incremental motor uses digital pulses?
ANSWER ✔✔ Stepper.
Q7: What is best described as a twisting action?
ANSWER ✔✔ Torque.
, Q8: When is torque the highest?
ANSWER ✔✔ In a locked condition.
Q9: Horsepower is the power rate corresponding to the rate of conversion of what per
minute and what per second?
ANSWER ✔✔ 33,000 ft-lb per minute or 550 ft-lb per second.
Q10: What is another metric (not ft-lb) used to measure torque?
ANSWER ✔✔ Newton meter.
Q11: RPM and CEMF are __________ to each other, and _______________ to torque and
load.
ANSWER ✔✔ Proportional; inversely proportional.
Q12: If RPM increases, what happens to generator output voltage?
ANSWER ✔✔ Increases.
Q13: In a motor, if applied voltage decreases, what happens to RPM?
ANSWER ✔✔ Decreases.
Q14: Motors operate on what principles of magnetism?
ANSWER ✔✔ Attraction and repulsion.
Q15: DC generators operate on what principle of magnetism to produce voltage?
ANSWER ✔✔ Passing a conductor through a magnetic field.
Q16: What type of power do generators produce?
ANSWER ✔✔ AC or DC.
ANSWERS | VERIFIED BY EXPERT | 2025
NEW UPDATE.
Q1: Rigidity is determined by what three factors?
ANSWER ✔✔ Rotor shape, rotor weight, and rotor speed.
Q2: What is rotating machinery?
ANSWER ✔✔ Any machine that has a spinning or rotating shaft and uses electricity as the input
or output.
Q3: What are the two categories of rotating machinery?
ANSWER ✔✔ Motor and generator.
Q4: What device uses an electrical input and converts it to a rotating mechanical output?
ANSWER ✔✔ Motor.
Q5: What device uses a rotating mechanical input and converts it to an electrical output?
ANSWER ✔✔ Generator.
Q6: What type of incremental motor uses digital pulses?
ANSWER ✔✔ Stepper.
Q7: What is best described as a twisting action?
ANSWER ✔✔ Torque.
, Q8: When is torque the highest?
ANSWER ✔✔ In a locked condition.
Q9: Horsepower is the power rate corresponding to the rate of conversion of what per
minute and what per second?
ANSWER ✔✔ 33,000 ft-lb per minute or 550 ft-lb per second.
Q10: What is another metric (not ft-lb) used to measure torque?
ANSWER ✔✔ Newton meter.
Q11: RPM and CEMF are __________ to each other, and _______________ to torque and
load.
ANSWER ✔✔ Proportional; inversely proportional.
Q12: If RPM increases, what happens to generator output voltage?
ANSWER ✔✔ Increases.
Q13: In a motor, if applied voltage decreases, what happens to RPM?
ANSWER ✔✔ Decreases.
Q14: Motors operate on what principles of magnetism?
ANSWER ✔✔ Attraction and repulsion.
Q15: DC generators operate on what principle of magnetism to produce voltage?
ANSWER ✔✔ Passing a conductor through a magnetic field.
Q16: What type of power do generators produce?
ANSWER ✔✔ AC or DC.
