Which statement about the regen drive system is correct?

Question

Answer

When the lift car is empty and it travels down, the system generates electricity

Answer

When the lift car is full and it travels down, the system generates electricity

Answer

The system always generates electricity when the lift car travels down

Answer

When the lift car is full and it travels up, the system generates electricity

Answer

When the lift car is empty, the system generates electricity when the lift car travels up and down

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