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When emergency braking, what is the difference between conventional brakes and anti-lock brakes (ABS)?

  1. ABS require pumping the brakes, unlike conventional brakes

  2. Conventional brakes stop faster than ABS

  3. Conventional brakes are used for high-speed driving while ABS are used for low-speed driving

  4. Conventional brakes require pumping, while ABS require firm and continuous pressure

The correct answer is: ABS require pumping the brakes, unlike conventional brakes

Explanation When emergency braking, conventional brakes and anti-lock brakes (ABS) operate differently. Conventional brakes require the driver to pump the brakes in order to prevent the wheels from locking up, while ABS automatically pumps the brakes for the driver, increasing the stopping power of the vehicle. B is incorrect because ABS actually stop faster than conventional brakes due to their ability to prevent wheel lockup. C is incorrect because both types of brakes can be used for a variety of driving speeds. D is incorrect because conventional brakes do not require constant pumping, but instead require firm and continuous pressure to maintain control. ABS do not require pumping at all.