# Cells and Batteries - Gibilisco MCQs in Electronics

MCQs in Cells and Batteries from the book Teach Yourself Electricity and Electronics, 5th edition by Stan Gibilisco.

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.
• 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.

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