ELEC 19001

What is the purpose of jogging in motor control?

• To run the motor continuously

• To position machinery momentarily

• To reverse the motor direction

• To increase motor speed

What happens when the holding circuit is eliminated in a jogging control?

• The motor runs continuously

• The motor stops immediately

• Positive jogging is achieved

• The motor reverses direction

Where should a limit switch be connected to stop a motor running in the forward direction?

• Reverse start

• Forward stop

• Holding circuit

• Overload relay

What is the braking method where motor connections are reversed to create a counter torque?

• Inching

• Anti-plugging

• Plugging

• Jogging

What does TDOD stand for in relay terminology?

• Time Delay on De-energization

• Time Delay on Energization

• Timer Direct On Delay

• Timer Direct Off Delay

What type of relay changes contacts instantly when energized but reverts after a delay when de-energized?

• TDOE

• NOTC

• TDOD

• Rail-mounted relay

What is the purpose of a rail-mounted relay?

• To step down voltage

• To provide time delays

• To mount on a DIN rail for easy installation

• To reverse motor direction

How many terminals does a double-acting push button have?

• 2

• 3

• 4

• 6

What is the purpose of push button interlocking in reversing magnetic starters?

• To prevent simultaneous forward and reverse operation

• To increase motor speed

• To provide time delays

• To step down voltage

What happens when you swap any two power lines in a three-phase motor?

• The motor stops

• The motor speed increases

• The motor direction reverses

• The motor overheats