ATT Test 11 Questions with Correct
Solutions
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
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
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)
Solutions
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
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
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)
