Gibilisco: MCQ in The Bipolar Transistor | ECE Board Exam

(Last Updated On: March 16, 2020)

Multiple choice questions in Bipolar Transistor

This is the Multiple Choice Questions (MCQs) in Chapter 22: Bipolar Transistor 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.

Start Practice Exam Test Questions

1. In a PNP circuit, the collector:

  • A. Has an arrow pointing inward.
  • B. Is positive with respect to the emitter.
  • C. Is biased at a small fraction of the base bias.
  • D. Is negative with respect to the emitter.

2. In many cases, a PNP transistor can be replaced with an NPN device and the circuit will do the same thing, provided that:

  • A. The supply polarity is reversed.
  • B. The collector and emitter leads are interchanged.
  • C. The arrow is pointing inward.
  • D. No! A PNP device cannot be replaced with an NPN.

3. A bipolar transistor has:

  • A. Three P-N junctions.
  • B. Three semiconductor layers.
  • C. Two N-type layers around a P-type layer.
  • D. A low avalanche voltage.

4. In the dual-diode model of an NPN transistor, the emitter corresponds to:

  • A. The point where the cathodes are connected together.
  • B. The point where the cathode of one diode is connected to the anode of the other.
  • C. The point where the anodes are connected together.
  • D. Either of the diode cathodes.

5. The current through a transistor depends on:

  • A. EC.
  • B. EB relative to EC.
  • C. IB.
  • D. More than one of the above.

6. With no signal input, a bipolar transistor would have the least IC when:

  • A. The emitter is grounded.
  • B. The E-B junction is forward biased.
  • C. The E-B junction is reverse biased.
  • D. The E-B current is high.

7. When a transistor is conducting as much as it possibly can, it is said to be:

  • A. In cutoff.
  • B. In saturation.
  • C. Forward biased.
  • D. In avalanche.

NOTE: For questions 8 – 11 see Fig.22-12.

Gibilisco MCQs image for CH22 Q8-11

8. Refer to Fig. 22-12. The best point at which to operate a transistor as a small-signal amplifier is:

  • A. A.
  • B. B.
  • C. C.
  • D. D.

9. In Fig. 22-12, the forward-breakover point for the E-B junction is nearest to:

  • A. No point on this graph.
  • B. B.
  • C. C.
  • D. D.

10. In Fig. 22-12, saturation is nearest to point:

  • A. A.
  • B. B.
  • C. C.
  • D. D.

11. In Fig. 22-12, the greatest gain occurs at point:

  • A. A.
  • B. B.
  • C. C.
  • D. D.

12. In a common-emitter circuit, the gain bandwidth product is:

  • A. The frequency at which the gain is 1.
  • B. The frequency at which the gain is 0.707 times its value at 1 MHz.
  • C. The frequency at which the gain is greatest.
  • D. The difference between the frequency at which the gain is greatest, and the frequency at which the gain is 1.

13. The configuration most often used for matching a high input impedance to a low output impedance puts signal ground at:

  • A. The emitter.
  • B. The base.
  • C. The collector.
  • D. Any point; it doesn’t matter.

14. The output is in phase with the input in a:

  • A. Common-emitter circuit.
  • B. Common-base circuit.
  • C. Common-collector circuit.
  • D. More than one of the above.

15. The greatest possible amplification is obtained in:

  • A. A common-emitter circuit.
  • B. A common-base circuit.
  • C. A common-collector circuit.
  • D. More than one of the above.

16. The input is applied to the collector in:

  • A. A common-emitter circuit.
  • B. A common-base circuit.
  • C. A common-collector circuit.
  • D. None of the above.

17. The configuration noted for its stability in radio-frequency power amplifiers is the:

  • A. Common-emitter circuit.
  • B. Common-base circuit.
  • C. Common-collector circuit.
  • D. Emitter-follower circuit.

18. In a common-base circuit, the output is taken from the:

  • A. Emitter.
  • B. Base.
  • C. Collector.
  • D. More than one of the above.

19. The input signal to a transistor amplifier results in saturation during part of the cycle. This produces:

  • A. The greatest possible amplification.
  • B. Reduced efficiency.
  • C. Avalanche effect.
  • D. Nonlinear output impedance.

20. The gain of a transistor in a common-emitter circuit is 100 at a frequency of 1000 Hz. The gain is 70.7 at 335 kHz. The gain drops to 1 at 210 MHz. The alpha cutoff is:

  • A. 1 kHz.
  • B. 335 kHz.
  • C. 210 MHz.
  • D. None of the above.

Complete List of Multiple Choice Questions from this Book

Check your work.

DOWNLOAD PDF / PRINT
Print Friendly, PDF & Email
Help Me Makes a Difference!

P inoyBIX educates thousands of reviewers/students a day in preparation for their board examinations. Also provides professionals with materials for their lectures and practice exams. Help me go forward with the same spirit.

“Will you make a small gift today via GCASH?” +63 966 459 6474

Add Comment

© 2014 PinoyBIX Engineering. © 2019 All Rights Reserved | How to Donate? | Follow me on Blogarama DMCA.com Protection Status

Math Solution

Advanced Math problem age work mixture digit motion Analytic Geometry 01 problem Analytic Geometry 02 problem clock variation progression misc Combination problem Differential Calculus 01 Problem Differential Calculus 02 Problem Differential Equations Problem Fundamentals in Algebra Fundamentals in Algebra Problem Integral Calculus problem Permutation problem Plane Geometry problem Plane Trigonometry problem Probability problem quadratic equation binomial theorem logarithms Solid Geometry problem Spherical Trigonometry problem System of Numbers Problem Venn Diagram Problem

Questions and Answers in Mathematics

Advanced Math Age Work Mixture Digit Motion Algebra and General Mathematics Analytic Geometry 01 Analytic Geometry 02 Calculus Clock Variation Progression Misc Differential Calculus 01 Differential Calculus 02 Differential Equations Engineering Mathematics Geometry Integral Calculus Plane Geometry Plane Trigonometry Probability and Statistics Quadratic Equation Binomial Theorem Logarithms Solid Geometry Spherical Trigonometry System of Numbers Trigonometry

video

Pre-board in Electronics Engineering

Answers Pre-board in Electronics Engineering - Answers

Questions and Answers

Basic Television - Grob TV Boylestad Questions and Answers Computer Principles Electrical Circuit Electricity and Magnetism Fundamentals Electronic Circuits Floyd Questions and Answers Floyd Self-test Gibilisco Questions and Answers Grob Questions and Answers Industrial Electronics Principles and Applications Malvino Questions and Answers Microelectronics Power Generators / Sources / Principles and Applications Solid State Devices Tests and Measurements Vacuum Tubes

Pre-board in Communications Engineering

Answers

Questions and Answers

Acoustics Antennas Blake Questions and Answers Broadcasting and Cable TV System Digital Communication Networks Forouzan Frenzel Self-test Kennedy Questions and Answers Microwave Communications Miscellaneous Questions in Communications Modulation Navigational Aids and Radar Systems Noise Optical Fiber Communications Radiation and Wave Propagation Satellite Communications Transmission Fundamentals Wire and Wireless Communications

GEAS Solution

Dynamics problem Economics problem Physics problem Statics problem Strength problem Thermodynamics problem

Pre-board in GEAS

Questions and Answers in GEAS

Engineering Economics Engineering Laws and Ethics Engineering Management Engineering Materials Engineering Mechanics General Chemistry Giancoli Physics Physics Strength of Materials Thermodynamics
Online Tool: Electrical Charge Conversions
Online Tool: Electrical Charge Conversions
Online Tool: Color Code Conversions
Online Tool: Color Code Conversions
Online Tool: Weight Measurement Conversions
Online Tool: Weight Measurement Conversions
Online Tool: Temperature Measurement Conversions
Online Tool: Temperature Measurement Conversions