Practice question

A powered wheelchair lift has no manual backup operation when electrical power is lost. Why is a manual backup required?

Manual backup is only for appearance
A manual backup (hand pump/release) lets a passenger be lowered safely if the lift loses power
Lifts never lose power so it is unnecessary
Manual backup increases lift speed

Answer: B — A manual backup (hand pump/release) lets a passenger be lowered safely if the lift loses power

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