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ATT Test 11 Questions and Answers 100% Verified
UPDATED!!!
What is a motor - ANSWER a device that converts electrical
energy into mechanical energy
What is a generator - ANSWER a device that converts
mechanical energy into electrical energy
What is an incremental motor - ANSWER a motor whose shaft
rotates a specific distance in degrees
What is a continuous motor - ANSWER one whose shaft
continuously rotates without interruption when input is applied
What type of generator produces DC volts and uses a
commutator? - ANSWER Dynamo
Motors and generators operate on what principle? - ANSWER
Electromagnetism
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What characteristic describes how fast shaft rotates and is
measured in RPM/RPS? - ANSWER Speed
What characteristic is a twisting force that causes shaft to
rotate? - ANSWER Torque
How is torque calculated in generators? - ANSWER Force X
Distance from center of shaft
How are torque and speed related? - ANSWER Inversely
proportional
What characteristic is a generated voltage that OPPOSES
applied volts? - ANSWER Couterelectromotive Force (CEMF)
How is CEMF produced? - ANSWER By the rotation of motors
shaft
How is CEMF related to speed and torque? - ANSWER CEMF is
proportional to speed and inversely proportional to torque
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What are loads? - ANSWER items that require motion and are
driven by rotating shaft (motors) and electrical circuits that
require power (generators)
How are loads related to speed? - ANSWER Inversely
proportional
What characteristic is the amount of work accomplished? -
ANSWER power
How is power calculated in motors? - ANSWER torque X RPM X
K
How is power measured? - ANSWER Watts and HP
How is power related to load and speed? - ANSWER
Proportional to load and inversely proportional to speed
When is torque greatest? - ANSWER When RPM is 0 (locked
motor)
ATT Test 11 Questions and Answers 100% Verified
UPDATED!!!
What is a motor - ANSWER a device that converts electrical
energy into mechanical energy
What is a generator - ANSWER a device that converts
mechanical energy into electrical energy
What is an incremental motor - ANSWER a motor whose shaft
rotates a specific distance in degrees
What is a continuous motor - ANSWER one whose shaft
continuously rotates without interruption when input is applied
What type of generator produces DC volts and uses a
commutator? - ANSWER Dynamo
Motors and generators operate on what principle? - ANSWER
Electromagnetism
,2|Page
What characteristic describes how fast shaft rotates and is
measured in RPM/RPS? - ANSWER Speed
What characteristic is a twisting force that causes shaft to
rotate? - ANSWER Torque
How is torque calculated in generators? - ANSWER Force X
Distance from center of shaft
How are torque and speed related? - ANSWER Inversely
proportional
What characteristic is a generated voltage that OPPOSES
applied volts? - ANSWER Couterelectromotive Force (CEMF)
How is CEMF produced? - ANSWER By the rotation of motors
shaft
How is CEMF related to speed and torque? - ANSWER CEMF is
proportional to speed and inversely proportional to torque
, 3|Page
What are loads? - ANSWER items that require motion and are
driven by rotating shaft (motors) and electrical circuits that
require power (generators)
How are loads related to speed? - ANSWER Inversely
proportional
What characteristic is the amount of work accomplished? -
ANSWER power
How is power calculated in motors? - ANSWER torque X RPM X
K
How is power measured? - ANSWER Watts and HP
How is power related to load and speed? - ANSWER
Proportional to load and inversely proportional to speed
When is torque greatest? - ANSWER When RPM is 0 (locked
motor)
