Correct answer
To reduce the effort the driver has to make to steer the wheels.
Power steering provides assistance to reduce the force a driver needs to apply to steer the wheels. It may use hydraulic, electric or another manufacturer configuration. Its function is not to multiply steering-wheel rotation or remove system maintenance and checks. Abnormally heavy, unstable or noisy steering requires inspection in accordance with vehicle instructions.
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To reduce the effort the driver has to make to steer the wheels.
To prevent the vehicle from needing maintenance.
To increase the effort the driver has to make to steer the wheels.
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