ATT Test
ATT TEST 11 ACTUAL EXAM COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+2025
What is a motor -Correct Answer ✔a device that converts electrical energy into
mechanical energy
What is a generator -Correct Answer ✔a device that converts mechanical energy into
electrical energy
What is an incremental motor -Correct Answer ✔a motor whose shaft rotates a specific
distance in degrees
What is a continuous motor -Correct Answer ✔one whose shaft continuously rotates
without interruption when input is applied
What type of generator produces DC volts and uses a commutator? -Correct Answer
✔Dynamo
Motors and generators operate on what principle? -Correct Answer ✔Electromagnetism
What characteristic describes how fast shaft rotates and is measured in RPM/RPS? -
Correct Answer ✔Speed
What characteristic is a twisting force that causes shaft to rotate? -Correct Answer
✔Torque
How is torque calculated in generators? -Correct Answer ✔Force X Distance from
center of shaft
How are torque and speed related? -Correct Answer ✔Inversely proportional
What characteristic is a generated voltage that OPPOSES applied volts? -Correct
Answer ✔Couterelectromotive Force (CEMF)
How is CEMF produced? -Correct Answer ✔By the rotation of motors shaft
How is CEMF related to speed and torque? -Correct Answer ✔CEMF is proportional to
speed and inversely proportional to torque
What are loads? -Correct Answer ✔items that require motion and are driven by rotating
shaft (motors) and electrical circuits that require power (generators)
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, ATT Test
How are loads related to speed? -Correct Answer ✔Inversely proportional
What characteristic is the amount of work accomplished? -Correct Answer ✔power
How is power calculated in motors? -Correct Answer ✔torque X RPM X K
How is power measured? -Correct Answer ✔Watts and HP
How is power related to load and speed? -Correct Answer ✔Proportional to load and
inversely proportional to speed
When is torque greatest? -Correct Answer ✔When RPM is 0 (locked motor)
How much CEMF is generated in locked motor condition? -Correct Answer ✔None
What is the definition of one horsepower? -Correct Answer ✔Power needed to lift 550
lbs 1 foot in one second or (33000 lbs in one minute)
What principle of magnetism do motors operate on? -Correct Answer
✔Attraction/repulsion
What are basic parts of a motor? -Correct Answer ✔Stator, armature (rotor), brushes,
commutator, shaft
At what points are max flux lines cut and peak volts produced? -Correct Answer ✔When
armature is parallel to lines of force (90 and 270 degrees)
What are three types of DC generators? -Correct Answer ✔permanent magnet,
separately excited, self-excited
What are 3 types of DC motors? -Correct Answer ✔Series, shunt and compound
What is the assumed value of K? -Correct Answer ✔1
How are speed and total current related in DC shunt field motor? -Correct Answer
✔Inversely proportional
What value isn't affected by speed changes in DC shunt field motor? -Correct Answer
✔Field current
What are two types of speed control in DC shunt/series field motors? -Correct Answer
✔Armature control and shunt field control
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ATT TEST 11 ACTUAL EXAM COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+2025
What is a motor -Correct Answer ✔a device that converts electrical energy into
mechanical energy
What is a generator -Correct Answer ✔a device that converts mechanical energy into
electrical energy
What is an incremental motor -Correct Answer ✔a motor whose shaft rotates a specific
distance in degrees
What is a continuous motor -Correct Answer ✔one whose shaft continuously rotates
without interruption when input is applied
What type of generator produces DC volts and uses a commutator? -Correct Answer
✔Dynamo
Motors and generators operate on what principle? -Correct Answer ✔Electromagnetism
What characteristic describes how fast shaft rotates and is measured in RPM/RPS? -
Correct Answer ✔Speed
What characteristic is a twisting force that causes shaft to rotate? -Correct Answer
✔Torque
How is torque calculated in generators? -Correct Answer ✔Force X Distance from
center of shaft
How are torque and speed related? -Correct Answer ✔Inversely proportional
What characteristic is a generated voltage that OPPOSES applied volts? -Correct
Answer ✔Couterelectromotive Force (CEMF)
How is CEMF produced? -Correct Answer ✔By the rotation of motors shaft
How is CEMF related to speed and torque? -Correct Answer ✔CEMF is proportional to
speed and inversely proportional to torque
What are loads? -Correct Answer ✔items that require motion and are driven by rotating
shaft (motors) and electrical circuits that require power (generators)
1|Page
, ATT Test
How are loads related to speed? -Correct Answer ✔Inversely proportional
What characteristic is the amount of work accomplished? -Correct Answer ✔power
How is power calculated in motors? -Correct Answer ✔torque X RPM X K
How is power measured? -Correct Answer ✔Watts and HP
How is power related to load and speed? -Correct Answer ✔Proportional to load and
inversely proportional to speed
When is torque greatest? -Correct Answer ✔When RPM is 0 (locked motor)
How much CEMF is generated in locked motor condition? -Correct Answer ✔None
What is the definition of one horsepower? -Correct Answer ✔Power needed to lift 550
lbs 1 foot in one second or (33000 lbs in one minute)
What principle of magnetism do motors operate on? -Correct Answer
✔Attraction/repulsion
What are basic parts of a motor? -Correct Answer ✔Stator, armature (rotor), brushes,
commutator, shaft
At what points are max flux lines cut and peak volts produced? -Correct Answer ✔When
armature is parallel to lines of force (90 and 270 degrees)
What are three types of DC generators? -Correct Answer ✔permanent magnet,
separately excited, self-excited
What are 3 types of DC motors? -Correct Answer ✔Series, shunt and compound
What is the assumed value of K? -Correct Answer ✔1
How are speed and total current related in DC shunt field motor? -Correct Answer
✔Inversely proportional
What value isn't affected by speed changes in DC shunt field motor? -Correct Answer
✔Field current
What are two types of speed control in DC shunt/series field motors? -Correct Answer
✔Armature control and shunt field control
2|Page
