Forward Reverse Circuit with Indicator Lights Quiz

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

• The motor speed increases.

• The motor spins in the opposite direction.

• The motor stops working.

• The motor spins in the same direction.

What is the purpose of a three-phase disconnect in the power side of the circuit?

• To increase the motor speed.

• To feed power to the contactors.

• To change the motor voltage.

• To reduce power consumption.

Which component is used to provide control voltage in the control side of the circuit?

• A circuit breaker.

• An overload relay.

• A control transformer.

• A three-phase disconnect.

What happens when the forward button is pressed in the circuit?

• The motor stops.

• The forward coil is energized and the green light turns on.

• The red light turns on.

• The reverse coil is energized.

How is the red indicator light controlled in the circuit?

• By a normally closed contact on both forward and reverse coils.

• By a normally open contact on the reverse coil.

• By a normally open contact on the forward coil.

• By a normally closed contact on the overload relay.

Which light indicates that neither coil is running?

• Green light.

• Yellow light.

• Red light.

• Blue light.

What is the effect of pressing the reverse button?

• The red light turns on.

• The reverse coil is energized and the yellow light turns on.

• The motor spins in the forward direction.

• The forward coil is energized.

How does the circuit ensure the motor spins in the opposite direction?

• By increasing the voltage.

• By swapping two of the leads.

• By using a single-phase motor.

• By reducing the current.

What is the function of interlocks in the circuit?

• To allow simultaneous operation of forward and reverse coils.

• To prevent simultaneous energizing of forward and reverse coils.

• To increase the motor speed.

• To reduce power consumption.

What happens when the emergency stop button is pressed?

• The reverse coil is energized.

• Power is cut off to all inputs and outputs.

• The circuit continues to operate normally.

• The motor speed increases.