Quiz Questions - Monthly Test of February-2026

Question 1 1 Marks

Which configuration of transistor amplifier is most commonly used in electronic circuits?

A

Common base configuration

B

Common emitter configuration

C

Common collector configuration

D

Common drain amplifier configuration

Question 2 1 Marks

How the negative feedback is called?

A

Regenerative feedback

B

Degenerative feedback

C

Current controlled feedback

D

Voltage controlled feedback

Question 3 1 Marks

How can you confirm a transistor as defective?

A

By circuit testing

B

By ohm meter testing

C

By physical testing

D

By voltage measurements

Question 4 1 Marks

What is the formula used to calculate the current gain (alpha) of common base amplifier?

A

IC/ IE

B

IE/ IC

C

IB/ IE

D

IE/ IC

Question 5 1 Marks

Why transistors made of silicon is preferred over the germanium semiconductor material?

A

Complex design

B

Higher thermal stability

C

Requires complicated bias arrangement

D

Silicon transistor needs low cut-in-voltage

Question 6 1 Marks

What is the overall base emitter voltage required to turn the darlington pair?

A

0.2 V

B

0.3 V

C

0.7 V

D

1.4 V

Question 7 1 Marks

What is the current gain of common collector amplifier?

A

Low

B

High

C

Medium

D

Very high

Question 8 1 Marks

Why the complementary - symmetry amplifier is preferred over the other types of amplifier configurations?

A

To minimize the gain

B

To get less distortion

C

To get more voltage gain

D

To eleminate the transformer

Question 9 1 Marks

What is the input impedence of darlington pair transistors?

A

Very low input impedance

B

Very high input impedance

C

Medium input impedance

D

Uniter

Question 10 1 Marks

What type of packaging is generally used to transistors utilized for low power amplification?

A

Metal packaging

B

Plastic packaging

C

Ceramic packaging

D

Plastic packaging with metal heatsinks

Question 11 1 Marks

What is the purpose of using positive feed back in amplifiers?

A

To produce modulation

B

To produce demodulation

C

To produce oscillation

D

To produce multiplexion

Question 12 1 Marks

What is the advantage of using bias in transistor circuits?

A

Provides positive feed back

B

Never reach saturation

C

Easily sets saturated

D

Gives maximum distortion

Question 13 1 Marks

Where does the depletion region exists in a bipolar transistor?

A

Between emitter - base electrodes

B

Between collector - base electrodes

C

Between collector and emitter electrodes

D

Between E-B and B-C electrodes

Question 14 1 Marks

What is the name of multi-stage amplifiers?

A

Cascoded amplifier

B

Cascaded amplifier

C

Complementry symmetry amplifier

D

Darlington pair amplifier

Question 15 1 Marks

Which coding system for transistor type numbering system is followed by American standard?

A

JIS standard

B

Home codes

C

JEDEC standard

D

PRO-ELECTRON standard

Question 16 1 Marks

How does the values of bias resistors selected for collector current in class -B amplifiers?

A

Q point set slightly below cut-off

B

Quiescent current at mid point

C

Quiescent current beyond the cut-off point

D

Quiescent current over the cut-off value

Question 17 1 Marks

Which type of packaging is used to transistors utilized for medium power amplification?

A

Plastic packaging with metal heatsinks

B

Ceramic packaging

C

Plastic packaging

D

Metal packaging

Question 18 1 Marks

How the maximum permissible voltage that can be applied across the collector ? Emitter junction of a transistor is indicated?

A

VCE (max) in volts

B

VBE (max) in volts

C

VCB (max) in volts

D

VCC in volts

Question 19 1 Marks

Which type of amplifier is used to operate the loud speaker?

A

IF Amplifier

B

RF Amplifier

C

Power Amplifier

D

Voltage Amplifier

Question 20 1 Marks

What is the effeciency transformer coupled class A amplifier?

A

Less than 20%

B

About 50%

C

More than 60%

D

Unity