PAEC Electronic Engineering Past Paper 2021 | NESCOM past paper MCQS

 PAEC Electronic Engineering Past Paper 2021 :

Pakistan Atomic Energy Commission composed test paper 2021 in Electronic Engineering. Today I share total tackled paper of electronic designing with answer key, If you go after position in nuclear energy at that point study this paper for composed test arrangement. NESCOM krl complete past paper for electrical and electronic designing in 2021, this paper is identified with pakistan nuclear energy commission electronic test paper . complete settled paper and paper example of nuclear energy commission electronic designing. Complete settled paper of electronic designing are given underneath








ATOMIC ENERGY PAST PAPER 2021

1. Which of coming up next is a characteristic magnet? 


A. Steel 


B. Magnesia 


C. Lodestone 


D. Delicate iron 


2. The straight line going through the two posts of magnet is called 


A. Genuine pivot 


B. Cartesian pivot 


C. Attractive pivot 


D. Nonexistent hub 


3. Characterized as a shut way in which attractive acceptance or transition streams 


A. Electric circuit 


B. Attractive circuit 


C. Electronic circuit 


D. Electromagnetic circuit 


4. The proportion between the power of charge created in a substance to the polarizing power delivering it 


A. Attractive Reluctivity 


B. Attractive Resistivity 


C. Attractive weakness 


D. Attractive conductivity 


5. One that has attractive shafts created by inside nuclear design with no outer 


current essential 


A. Diamagnetic 


B. Perpetual magnets 


C. Paramagnetic 


D. Electromagnetic 


6. The easiest sort of particle to exist is the molecule. 


A. Helium 


B. Hydrogen 


C. Boron 


D. Oxygen 


7. A germanium molecule has a nuclear load of 


A. 32 


B. 40 


C. 34 


D. 36 


8. What is the unit of magnetomotive power? 


A. Volt 


B. Tesla 


C. Ampere-turn 


D. Weber 


9. Which component has four valence electrons? 


A. Conductor 


B. Separator 


C. Semiconductor 


D. Semi-separator 


10. The power between two attractive shafts is their posts strength. 


A. equivalent to 


B. straightforwardly corresponding to 


C. conversely relative to 


D. straightforwardly corresponding to the square foundation of 


11. The attractive field around the conductor is controlled by the 


A. Size of the conducto 


B. Measure of current 


C. Current isolated by the obstruction 


D. Opposition partitioned by the current 


12. What number of turns are expected to deliver a magnetomotive power of 1000 A.t for a loop with 6 amperes? 


A. 6000 turns 


B. 600 turns 


C. 167 turns 


D. 67 turns 


13. The hesitance of the attractive circuit is _ relative porousness of the material involving the circuit. 


A. straightforwardly relative to 


B. contrarily corresponding to 


C. free of 


D. ward of 


14. Another expression for crown release. 


A. Lightning 


B. Starting 


C. Aurora 


D. Crown Effect 


15. Which of the accompanying materials has the least hysteresis circle territory? 


A. delicate iron 


B. silicon steel 


C. hard steel 


D. fashioned iron 


16. is a substance of whose particles comprise of a similar sort of molecule. 


A. Combination 


B. Compound 


C. Component 


D. Isotope 


17. A one cubic cm of copper has what number of free electrons at room temperature? 


A. 80 × 10^18 


B. 8.5 × 10^22 


C. 20 × 10^10 


D. 50 × 10^20 


18. What is the SI unit of explicit obstruction or resistivity? 


A. Ohm-round mil per inch 


B. Ohm-round mil per foot 


C. Ohm-m 


D. Ohm-cm 


19. The electric transition thickness is an amount. 


A. phasor 


B. vector 


C. scalar 


D. variable 


20. What is the most extreme effectiveness of a full-wave rectifier? 


A. 40.6% 


B. 20.3% 


C. 90% 


D. 81.2% 


21. What number of diodes are utilized by a scaffold type rectifier? 


A. Two 


B. Four 


C. Three 


D. Five 


22. What is given by transformer coupling? 


A. Impedance coordinating 


B. Great recurrence reaction 


C. Step-up in voltage 


D. Effortlessness and economy 


23. What double number follows 1110? 


A. 1010 


B. 0111 


C. 1111 


D. 1000 


24. What number of OP-AMPS does window comparator require? 


A. 2 


B. 


C. 3 


D. 1 


25. In BCD, the code 1111 is 


A. letter F 


B. A 


C. 11 


D. Invalid

 





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3 Comments

  1. ATOMIC ENERGY PAST PAPER 2021.

    1. Which of the following is a natural magnet?

    A. Steel

    B. Magnesia

    C. Lodestone☑️

    D. Soft iron

    2. The straight line passing through the two poles of magnet is called

    A. Real axis

    B. Cartesian axis

    C. Magnetic axis☑️

    D. Imaginary axis


    3. Defined as a closed path in which magnetic induction or flux flows

    A. Electric circuit

    B. Magnetic circuit☑️

    C. Electronic circuit

    D. Electromagnetic circuit


    4. The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing it

    A. Magnetic Reluctivity

    B. Magnetic Resistivity

    C. Magnetic susceptibility☑️

    D. Magnetic conductivity


    5. One that has magnetic poles produced by internal atomic structure with no external current necessary.

    A. Diamagnetic

    B. Permanent magnets☑️

    C. Paramagnetic

    D. Electromagnetic

    6. The simplest type of atom to exist is the atom.

    A. Helium

    B. Hydrogen☑️

    C. Boron

    D. Oxygen

    7. A germanium atom has an atomic weight of

    A. 32☑️

    B. 40

    C. 34

    D. 36

    8. What is the unit of magnetomotive force?

    A. Volt

    B. Tesla

    C. Ampere- turn☑️

    D. Weber

    9. Which element has four valence electrons?

    A. Conductor

    B. Insulator

    C. Semiconductor☑️

    D. Semi- insulator

    10. The force between two magnetic poles is their poles strength.

    A. equal to

    B. directly proportional to

    C. inversely proportional to

    D. directly proportional to the square root of☑️

    11. The magnetic field around the conductor is determined by the

    A. Size of the conducto

    B. Amount of current☑️

    C. Current divided by the resistance

    D. Resistance divided by the current

    12. How many turns are needed to produce a magnetomotive force of 1000 A.t for a coil with 6 amperes?

    A. 6000 turns

    B. 600 turns

    C. 167 turns☑️

    D. 67 turns

    13. The reluctance of the magnetic circuit is _ relative permeability of the material comprising the circuit.

    A. directly proportional to

    B. inversely proportional to☑️

    C. independent of

    D. dependent of

    14. Another term for corona discharge.

    A. Lightning

    B. Sparking

    C. Aurora☑️

    D. Corona Effect

    15. Which of the following materials has the least hysteresis loop area?

    A. soft iron

    B. silicon steel☑️

    C. hard steel

    D. wrought iron


    16. is a substance of whose molecules consist of the same kind of atom.

    A. Mixture

    B. Compound☑️

    C. Element

    D. Isotope

    17. A one cubic cm of copper has how many free electrons at room temperature?

    A. 80 × 10^18

    B. 8.5 × 10^22☑️

    C. 20 × 10^10

    D. 50 × 10^20


    18. What is the SI unit of specific resistance or resistivity?

    A. Ohm-circular mil per inch

    B. Ohm-circular mil per foot

    C. Ohm-m☑️

    D. Ohm-cm


    19. The electric flux density is a quantity.

    A. phasor

    B. vector☑️

    C. scalar

    D. variable

    20. What is the maximum efficiency of a full-wave rectifier?

    A. 40.6%

    B. 20.3%

    C. 90%

    D. 81.2%☑️

    21. How many diodes are used by a bridge type rectifier?

    A. Two

    B. Four☑️

    C. Three

    D. Five

    22. What is provided by transformer coupling?

    A. Impedance matching☑️

    B. Good frequency response

    C. Step-up in voltage

    D. Simplicity and economy


    23. What binary number follows 1110?

    A. 1010

    B. 0111

    C. 1111☑️

    D. 1000


    24. How many OP-AMPS does window comparator require?

    A. 2☑️

    B.

    C. 3

    D. 1

    25. In BCD, the code 1111 is

    A. letter F

    B. A

    C. 11

    D. Invalid☑️


    ReplyDelete
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