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Electric Car Quiz
by Staff
They may look similar from the outside. But there are many significant under-the-hood differences between an electric-powered car and a car that makes use of an internal combustion engine. How much do you know about electric cars?

In an electric car, the accelerator pedal hooks to a pair of these to relay the information to the controller about how much power it should deliver.

  • batteries
  • power inverters
  • potentiometers

What is the purpose of two potentiometers?

  • to increase the cost
  • for durability
  • for safety

The controller reads the setting from the potentiometer and rapidly switches the power to the motor on and off at a rate of how many times per second?

  • more than 15,000 times per second
  • more than 25,000 times per second
  • more than 50,000 times per second

How many sets of transistors do you need in an AC controller?

  • six
  • three
  • one

Electric cars can use AC or DC motors. According to the article, many of the DC motors used in electric cars come from where?

  • the electric garage door industry
  • the electric forklift industry
  • the electric vacuum cleaner industry

What is the weakest link in any electric car?

  • the potentiometers
  • the batteries
  • the driver

To keep the battery in an electric car charged, the car must have what?

  • an AC-to-DC converter
  • a DC-to-DC converter
  • a DC-to-AC converter

Any electric car needs this to recharge the batteries.

  • a potentiometer
  • a transistor
  • a charging system

What is the term used when someone gently overcharges the batteries to make sure that the weakest cells are brought up to full charge?

  • equilibrium charge
  • equalization charge
  • equidistant charge

If you've decided to build your own electric vehicle, you should know that an electric motor usually needs which one of the following for maximum efficiency?

  • a potentiometer
  • a catalytic converter
  • a reduction gear