ATT Week 12 (FC) Exam Questions With Correct
Answers 100% Verified
Rigidity is determined by what three factors? - CORRECT ANSWER -Rotor shape, rotor weight,
and rotor speed.
Any machine that has a spinning or rotating shaft and uses electricity as the input or output is
______________. - CORRECT ANSWER -Rotating Machinery
What are the two categories of rotating machinery? - CORRECT ANSWER -Motor and generator.
A __________ uses an electrical input and converts it to a rotating mechanical output. -
CORRECT ANSWER -motor
A __________ uses a rotating mechanical input and convert it to an electrical output. - CORRECT
ANSWER -generator
What is the term for voltage produced in a motor that opposes the applied voltage? - CORRECT
ANSWER -CMEF
What type incremental motor uses digital pulses? - CORRECT ANSWER -Stepper
What type of incremental motor uses specific magnitudes of voltage? - CORRECT ANSWER -
Analog
__________ is best described as a twisting action. - CORRECT ANSWER -Torque
Torque is the highest in a __________ condition. - CORRECT ANSWER -locked
, Horsepower is the power rate corresponding to the rate of conversion of ___________ per min
or ___________ per sec - CORRECT ANSWER -33,000 ft-Ib; 550 ft-Ib/sec
What is another metric (not Ft-lb) used to measure torque? - CORRECT ANSWER -Newton meter
RPM and CEMF are _____________ to each other, and ____________________ to torque and
load. - CORRECT ANSWER -proportional; inversely proportional
If RPM increases, what happens to generator output voltage? - CORRECT ANSWER -Increases.
In a motor, if applied voltage decreases, what happens to RPM? - CORRECT ANSWER -
Decreases.
Motors operate on the principles of magnetism that have to do with ____________________. -
CORRECT ANSWER -attraction and repulsion
DC generators operate on the principle of magnetism that has to do with
_________________________ to produce voltage. - CORRECT ANSWER -passing a conductor
through a magnetic field
What type of power do generators produce? - CORRECT ANSWER -AC or DC
If power in = power out, how efficient is said motor/generator? - CORRECT ANSWER -100%
How is efficiency calculated? - CORRECT ANSWER -Pout/Pin x 100
What's the conversion formula for ft/lbs to watts? - CORRECT ANSWER -W = ft/lbs x 1.356
Answers 100% Verified
Rigidity is determined by what three factors? - CORRECT ANSWER -Rotor shape, rotor weight,
and rotor speed.
Any machine that has a spinning or rotating shaft and uses electricity as the input or output is
______________. - CORRECT ANSWER -Rotating Machinery
What are the two categories of rotating machinery? - CORRECT ANSWER -Motor and generator.
A __________ uses an electrical input and converts it to a rotating mechanical output. -
CORRECT ANSWER -motor
A __________ uses a rotating mechanical input and convert it to an electrical output. - CORRECT
ANSWER -generator
What is the term for voltage produced in a motor that opposes the applied voltage? - CORRECT
ANSWER -CMEF
What type incremental motor uses digital pulses? - CORRECT ANSWER -Stepper
What type of incremental motor uses specific magnitudes of voltage? - CORRECT ANSWER -
Analog
__________ is best described as a twisting action. - CORRECT ANSWER -Torque
Torque is the highest in a __________ condition. - CORRECT ANSWER -locked
, Horsepower is the power rate corresponding to the rate of conversion of ___________ per min
or ___________ per sec - CORRECT ANSWER -33,000 ft-Ib; 550 ft-Ib/sec
What is another metric (not Ft-lb) used to measure torque? - CORRECT ANSWER -Newton meter
RPM and CEMF are _____________ to each other, and ____________________ to torque and
load. - CORRECT ANSWER -proportional; inversely proportional
If RPM increases, what happens to generator output voltage? - CORRECT ANSWER -Increases.
In a motor, if applied voltage decreases, what happens to RPM? - CORRECT ANSWER -
Decreases.
Motors operate on the principles of magnetism that have to do with ____________________. -
CORRECT ANSWER -attraction and repulsion
DC generators operate on the principle of magnetism that has to do with
_________________________ to produce voltage. - CORRECT ANSWER -passing a conductor
through a magnetic field
What type of power do generators produce? - CORRECT ANSWER -AC or DC
If power in = power out, how efficient is said motor/generator? - CORRECT ANSWER -100%
How is efficiency calculated? - CORRECT ANSWER -Pout/Pin x 100
What's the conversion formula for ft/lbs to watts? - CORRECT ANSWER -W = ft/lbs x 1.356
