Gibilisco: MCQ in Cells and Batteries | ECE Board Exam

(Last Updated On: March 16, 2020)

Multiple choice questions in Cells and Batteries

This is the Multiple Choice Questions (MCQs) in Chapter 7: Cells and Batteries from the book Teach Yourself Electricity and Electronics, 5th edition by Stan Gibilisco. If you are looking for a reviewer in Electronics Engineering this will definitely help you before taking the Board Exam.

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1. The chemical energy in a battery or cell:

  • A. Is a form of kinetic energy.
  • B. Cannot be replenished once it is gone.
  • C. Changes to kinetic energy when the cell is used.
  • D. Is caused by electric current.

2. A cell that cannot be recharged is:

  • A. A dry cell.
  • B. A wet cell.
  • C. A primary cell.
  • D. A secondary cell.

3. A Weston cell is generally used:

  • A. As a current reference source.
  • B. As a voltage reference source.
  • C. As a power reference source.
  • D. As an energy reference source.

4. The voltage in a battery is:

  • A. Less than the voltage in a cell of the same kind.
  • B. The same as the voltage in a cell of the same kind.
  • C. More than the voltage in a cell of the same kind.
  • D. Always a multiple of 1.018 V.

5. A direct short-circuit of a battery can cause:

  • A. An increase in its voltage.
  • B. No harm other than a rapid discharge of its energy.
  • C. The current to drop to zero.
  • D. An explosion.

6. A cell of 1.5 V supplies 100 mA for seven hours and twenty minutes, and then it is replaced. It has supplied:

  • A. 7.33 Ah.
  • B. 733 mAh.
  • C. 7.33 Wh.
  • D. 733 mWh.

7. A 12-V auto battery is rated at 36 Ah. If a 100-W, 12-Vdc bulb is connected across this battery, about how long will the bulb stay lit, if the battery has been fully charged?

  • A. 4 hours and 20 minutes.
  • B. 432 hours.
  • C. 3.6 hours.
  • D. 21.6 minutes.

8. Alkaline cells:

  • A. Are cheaper than zinc-carbon cells.
  • B. Are generally better in radios than zinc-carbon cells.
  • C. Have higher voltages than zinc-carbon cells.
  • D. Have shorter shelf lives than zinc-carbon cells.

9. The energy in a cell or battery depends mainly on:

  • A. Its physical size.
  • B. The current drawn from it. Cells and Batteries
  • C. Its voltage.
  • D. All of the above.

10. In which of the following places would a “lantern” battery most likely be found?

  • A. A heart pacemaker.
  • B. An electronic calculator.
  • C. An LCD wall clock.
  • D. A two-way portable radio.

11. In which of the following places would a transistor battery be the best power-source choice?

  • A. A heart pacemaker.
  • B. An electronic calculator.
  • C. An LCD wristwatch.
  • D. A two-way portable radio.

12. In which of the following places would you most likely choose a lithium battery?

  • A. A microcomputer memory backup.
  • B. A two-way portable radio.
  • C. A portable audio cassette player.
  • D. A rechargeable flashlight.

13. Where would you most likely find a lead-acid battery?

  • A. In a portable audio cassette player.
  • B. In a portable video camera/recorder.
  • C. In an LCD wall clock.
  • D. In a flashlight.

14. A cell or battery that keeps up a constant current-delivering capability almost until it dies is said to have:

  • A. A large ampere-hour rating.
  • B. Excellent energy capacity.
  • C. A flat discharge curve.
  • D. Good energy storage per unit volume.

15. Where might you find a NICAD battery?

  • A. In a satellite.
  • B. In a portable cassette player.
  • C. In a handheld radio transceiver.
  • D. In more than one of the above.

16. A disadvantage of mercury cells and batteries is that:

  • A. They don’t last as long as other types.
  • B. They have a flat discharge curve.
  • C. They pollute the environment.
  • D. They need to be recharged often.

17. Which kind of battery should never be used until it “dies”?

  • A. Silver-oxide.
  • B. Lead-acid.
  • C. Nickel-cadmium.
  • D. Mercury.

18. The current from a solar panel is increased by:

  • A. Connecting solar cells in series.
  • B. Using NICAD cells in series with the solar cells.
  • C. Connecting solar cells in parallel.
  • D. Using lead-acid cells in series with the solar cells.

19. An interactive solar power system:

  • A. Allows a homeowner to sell power to the utility.
  • B. Lets the batteries recharge at night.
  • C. Powers lights but not electronic devices.
  • D. Is totally independent from the utility.

20. One reason why it is impractical to make an extremely high-voltage battery of cells is that:

  • A. There’s a danger of electric shock.
  • B. It is impossible to get more than 103.5 V with electrochemical cells.
  • C. The battery would weigh to much.
  • D. There isn’t any real need for such thing.

Complete List of Multiple Choice Questions from this Book

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