Assistant Manager(AM) Electronics Live MCQs Series

Which of the following is fastest logic

CMOS

TTL

ECL

DTL

Correct! Wrong!

In the normal operation of an SCR, anode is …………… w.r.t. cathode

At zero potential

Negative

Positive

None of the above

Correct! Wrong!

Which of the following control system has tendency to oscillate

Open loop system

Close loop system

Both A and B

None of the above

Correct! Wrong!

When the transistors are used in digital circuit they usually operate in

Active region

Saturation region

Break down region

Cutoff region

Saturation and cutoff region

Correct! Wrong!

FM frequency deviation is 45 KHz and modulating signal frequency is 75 KHz, the modulation index

0.6

0.8

0.4

Correct! Wrong!

Addition of zeros in a control system gives

Lead compensation

Lag compensation

Both A and C

None of the above

Correct! Wrong!

The program is divided into operable parts called as

Pages

Sheets

Segment

Frames

Correct! Wrong!

Signal attenuation means

Weakness of signal

Power of signal

Sampling of signal

All of the above

Correct! Wrong!

2’s Complement of 7 is

1000

1001

1100

1010

Correct! Wrong!

In which transistor configuration their phase shift of 180°

CE Configuration & CC Configuration

CB Configuration

CC Configuration

CE Configuration

Correct! Wrong!

The circuit shown in figure is

Op-amp Integrator

Op-amp Differentiator

Op-amp Summing amplifier

Op-amp Inverting amplifier

Correct! Wrong!

Which of the following is fastest switching device

JFET

BJT

MOSFET

Triac

Correct! Wrong!

DC to DC converter or Chopper can

Only step-down DC voltage

Only step-up DC voltage

Step- up or step-down voltage

None of the above

Correct! Wrong!

Cyclo-converters are

AC-DC

AC-AC

DC-AC

DC-DC

Correct! Wrong!

A loop antenna is commonly used for

Radar

Direction finding

Satellite communication

All of the above

Correct! Wrong!

The forbidden gap for germanium is

0.12 eV

0.72 eV

7.2 eV

None of these

Correct! Wrong!

Which of the following translator program is faster

Interpreter

Compiler

Both A and B

None of the above

Correct! Wrong!

ASIC’s is designed for

Common task

Specific task

Both A and B

General task

Correct! Wrong!

The transducer that change small air pressure to a voltage is called

Thermistor

Photo conductive cell

Pressure transducer

Piezo- electric transducer

Correct! Wrong!

Which instruction is used to fetch address

Move

Jump

Count

Initial

Correct! Wrong!

The size comparison between Base, Emitter and Collector is

Base > Collector > Emitter

Emitter > Collector > Base

Collector > Emitter > Base

All are equal

Correct! Wrong!

Which of the combine the advantage of BJT’s and MOSFET

UJT

IGBT

SIT’s

COOLMOS

Correct! Wrong!

In parallel circuit 𝑹𝟏 is 9 ohm, 𝑹𝟐 is also 9 ohm and voltage source is 9v. The current through the voltage source is

2.5 A

1.5 A

Correct! Wrong!

𝑅𝑡 = (9)(9) /9+9 𝑅𝑡 = 4.5 Ω 𝐼𝑡= 𝑉𝑡 / 𝑅𝑡 𝐼𝑡= 9/ 4.5 𝐼𝑡= 2A

If more than 100 logic gates are fabricated into a single chip, we get

LSI Chip

MSI Chip

VLSI

None of the above

Correct! Wrong!

The unit of permittivity of free space

F/m

V/m

A/m

All of the above

Correct! Wrong!

Why SCR is considered to be a semi-controlled device

It can be turned ON but not OFF with a gate pulse

It can be turned OFF but not ON with a gate pulse

It can be turned ON only during one half cycle of an alternating voltage wave

It can be turned ON and OFF with gate pulse

Correct! Wrong!

For VGS=0V, the drain current becomes constant when VDS exceeds

Cutt-off

𝑽𝑷

𝑽𝑫𝑫

Correct! Wrong!

Form factor of 220V, 50Hz Sine wave is

1.11

2.11

1.0

1.22

Correct! Wrong!

OP-Amp uses

Dual Supply

Positive supply

Negative supply

None of the above

Correct! Wrong!

Fast recovery diodes has reverse recovery time of

Less than 10µs

Less than 20ns

Less than 5µs

Less than 10ns

Correct! Wrong!

Zener diode can be described as

A rectifier diode

A device with constant – voltage

A device that works in the forward region

A device with constant – current

Correct! Wrong!

Which device is normally ON

PMOS

NMOS

D-MOSFET

EMOSFET

Correct! Wrong!

UJT has how much junctions

Three PN junctions

Two PN junctions

One PN junction

None of the above

Correct! Wrong!

Digital circuits consist of …………. Characteristics states

One state

Two states

Three states

Four States

Correct! Wrong!

Super capacitor store energy in ……….. Field

Electric

Magnetic

Electrostatic

None of the above

Correct! Wrong!

Solar cell produce which type of energy

Both A & B

None of the above

Correct! Wrong!

In MOSFET the conduction path between drain and source is called

P-region

N-region

Channel

Substrate

Correct! Wrong!

Which of the following is current controlled device

MOSFET

BJT

FET

Oscillator

Correct! Wrong!

Darlington connection is achieved in 2 transistors by connecting

Both emitter

Both collector

Both base

Grounding both collector

Correct! Wrong!

The device shown in figure is

TRIAC

DIAC

SCR

UJT

Correct! Wrong!

Addition of poles in a system gives

Lead compensation

Lag compensation

Both A and B

None of the above

Correct! Wrong!

The varactor diode is usually

Forward biased

Reverse biased

Unbiased

Holes and electronics

Correct! Wrong!

In full wave rectification the output D.C. voltage across the load is obtained for

The positive half cycle of input A.C

The negative half cycle of input A.C

The complete cycle of input A.C

All of the above

Correct! Wrong!

Filp-Flops are

Edge triggered

Level triggered

Both & B

Positive Edge triggered

Correct! Wrong!

Which capacitor will be physically smaller for the same ratings

Ceramic capacitor

Paper capacitor

Both will be of equal size

None of the above

Correct! Wrong!

Which of the following is not a mode of operation in PLL

Capture mode

Free running mode

Phase lock mode

Unlock mode

Correct! Wrong!

Crossover distortion is a problem for

Class A

Class B

Class AB

Class C

Correct! Wrong!

In half wave rectifier the input frequency is ……….. the input frequency

Less then

Greater then

Half of

Equals

Correct! Wrong!

Modulation index is

Vm / Vc

Vc / Vm

Vm / Ic

None of these

Correct! Wrong!

Which device give output without input

Amplifier

Filter

Oscillator

Transistor

Correct! Wrong!

21 thoughts on “Assistant Manager(AM) Electronics Live MCQs Series”

Sumera Syed January 25, 2021 Reply

Please upload correct answers as well.
Thank You!
- admin Post authorJanuary 26, 2021 Reply
  
  Correct answers are also uploaded.
- Muhammad Sohaib Owais May 11, 2021 Reply
  
  Excellent job.. thank you
  - Kamyab Engineer Post authorAugust 22, 2021 Reply
    
    Thank you!
- Kamyab Engineer Post authorAugust 22, 2021 Reply
  
  Thank you for the feedback, we will look into that.
Quaidian February 6, 2021 Reply

Excellent effort !!!!
- admin Post authorFebruary 7, 2021 Reply
  
  Thank you!
  - Muhammad Adnan August 16, 2021 Reply
    
    Great job sir, it really helps alot.
    - Kamyab Engineer Post authorAugust 22, 2021 Reply
      
      Your welcome
Abdul Ghani February 9, 2021 Reply

Good Effort and really enjoyed the live mcqs. kindly upload more mcqs. Thanks
- admin Post authorFebruary 10, 2021 Reply
  
  Thank you! We will upload more soon.
- Kamyab Engineer Post authorAugust 22, 2021 Reply
  
  Thank you for the feedback, we will!
Rehan ahmed February 10, 2021 Reply

Yes
Mahaz Khalid February 15, 2021 Reply

mashallah.Great Effort Live Session is very much helpfull for self assesment
- Kamyab Engineer Post authorAugust 22, 2021 Reply
  
  Thank you for your feedback.
Muhammad Zahid Iqbal February 24, 2021 Reply

A Very Good and Helpful initiative. May ALLah Bless you more and more.
- Muhammad Talha Rehman March 2, 2021 Reply
  
  Great effort sir nd keep it up.. kindly share Syllabus+imp topics for AM Electronics
  - admin Post authorMarch 4, 2021 Reply
    
    Please check Download pdfs page
Abdul samad May 14, 2021 Reply

Aoa anyone can plz share syllabus of AM Electrical/electronics of careerjobs91.com
This is basically AWC (Air weapon complex)
anyone knows from which website or book will they make test?
or which topics to prepare?
Regards
- Kamyab Engineer Post authorAugust 22, 2021 Reply
  
  Thank you for contacting us please conctact us through the contact-us page response will be afst.
- Kamyab Engineer Post authorAugust 22, 2021 Reply
  
  Thank you for contacting us, please contact us through the contact-us page response will be quicker.