Question

4. What is the name of the device which measures the speed of a moving vehicle?
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Answer 1

A speedometer or speed meter is a gauge that measures and displays the instantaneous speed of a vehicle. Now universally fitted to motor vehicles, they started to be available as options in the early 20th century, and as standard equipment from about 1910 onwards.

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Answer 2

The name of the device which measures the speed of a moving vehicle is the Speedometer.

• A Speedometer is an instrument that ascertains the speed of a vehicle, mostly incorporated with a device called an odometer that records the distance travelled.
• The mechanism of speed-indicating of the speedometer is evaluated by a circular permanent magnet that is rotated a thousand revolutions per mile of vehicle travel by a flexible beam driven by gears at the rear of the transmission.
• In particular vehicles, the speedometer is enhanced by a device that can be associated with the throttle of the engine so as to retain the vehicle at a preferred speed.

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