Question for NAL Technical Assistant 2026 - Quiz / Questions / MCQ

Objective Questions

Latest NAL Technical Assistant Exam Question (Objective Questions), MCQ in English

Subjects : English, Electrical Engineering, Reasoning, Quantitative Aptitude, Current Affairs

Question Bank NAL Technical Assistant Exam (Electrical) - English

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English

Question 1Single Answer

I go to Madurai by —– Vaigai Express

A
a
B
an
C
some
D
the

Question 2Single Answer

Have the car stolen!

A
Steal the car
B
You should have the stolen car
C
Get someone to steal the car
D
They have stolen the car

Question 3Single Answer

The payment was collected by the hardworking salesman.

A
The hardworking salesman collected the payment.
B
the salesman who worked heard was able to collect the payment.
C
to collect the payment the salesman had to work hard.
D
The hardworking salesman was able to collect the payment.

Question 4Single Answer

I had to stop all my work to complete this project.

A
All other work had to be stopped to complete this project by me
B
For completing this project all other work must be stopped
C
For completing this project I had to stop all my work
D
To complete this project all other work had been stopped by me

Question 5Single Answer

They have published the names of all the successful candidates.

A
The candidates who have succeeded their names they had published.
B
The names of all the successful candidates have been published by them
C
The candidates who have succeeded their names have been published by them.
D
The names of all the successful candidate were published by them.

Question 6Single Answer

The online shopping site lowered the prices.

A
Lowering of the prices was done by the online shopping site
B
The prices were lowered by the online shopping site
C
The prices had been lowered by the online shopping site
D
The prices have been lowered by the online shopping site

Question 7Single Answer

Who taught you to drive a truck ?

A
To drive a truck by whom were you taught?
B
Driving a truck by who were you taught?
C
Driving a truck by who were you being taught?
D
By whom were you taught to drive a truck?

Question 8Single Answer

We shall invite Suresh.

A
Suresh would be invited by us
B
Suresh would have been invited by us
C
Suresh will be invited by us
D
Suresh will have been invited by us

Question 9Single Answer

Dark clouds have overcast the evening sky.

A
By the dark clouds the evening sky was overcast.
B
The evening sky has been overcast by the dark clouds.
C
Dark clouds overcastted the evening sky.
D
The sky of the evening was overcasted by dark clouds.

Question 10Single Answer

The partners will celebrate their triumph tomorrow.

A
The triumph would be celebrated by the partners a day before
B
The triumph would be celebrated by the partners a day after
C
The triumph would have been celebrated by the partners a day after
D
The triumph will have been celebrated by the partners tomorrow

Question 11Single Answer

Why did break the vase?

A
why is the vase broken by him
B
why was the vase broken by him
C
why had been the vase broken by him
D
why has been the vase broken by him

Question 12Single Answer

Mariam was writing a note to her boss.

A
A note was written to her boss by Mariam
B
A note was wrote by Mariam to her boss
C
A note was being written by Mariam to her boss
D
A note was written by Mariam to her boss

Question 13Single Answer

The baby really enjoys that music.

A
That music was really enjoyed by the baby.
B
That music was really being enjoyed by the baby.
C
That music is really enjoyed by the baby.
D
This music was really enjoyed by the baby.

Question 14Single Answer

The weather disrupted the final match.

A
The final match has been disrupted by the weather.
B
The final match had been disrupted by the weather.
C
The final match was disrupted by the weather.
D
The final match was being disrupted by the weather.

Question 15Single Answer

The management committee is required to publish a report every year.

A
report would be published by the management committee every year.
B
A report would have been published by the management committee every year.
C
A report requires to be published by the management committee every year.
D
Every year the report would be published by the management committee.

Question 16Single Answer

Preeti ran the race in record time.

A
In record time Preeti ran the race.
B
The race was run by Preeti in record time
C
The race was being run by Preeti in record time
D
The race had been run by Preeti in record time

Question 17Single Answer

I shall have written the full thesis by December

A
By December I shall have wrote the full thesis.
B
The full thesis will have been written by me by December.
C
The full Thesis will be wrote by me by December
D
By December the full thesis must have been wrote by me.

Question 18Single Answer

One must keep one’s promises.

A
One’s promises must be kept by one.
B
One’s promises had to be kept.
C
Promises must be kept.
D
Promises have to be kept by one.

Question 19Single Answer

I read the story in one night.

A
The story had been read by me in one night.
B
The story has been read by me in one night
C
n one night the story has been read by me.
D
the story was read by me in one night

Question 20Single Answer

We must take care of the old.

A
Those who are old need to be taken care of by us.
B
The old must be taken care of by us.
C
Those who are old need care by us
D
The old should be taken care of by us.

Question 21Single Answer

My father generously donated money to the church.

A
Money is generously being donated to te church by my father.
B
Money has been generously donated to the church by my father.
C
Money had been generously donated to the church by my father.
D
Money was generously donated to the church by my father.

Question 22Single Answer

We will send you your laboratory reports as soon as they are ready

A
you would be sent your laboratory reports as soon as they will be ready.
B
Your laboratory reports will be sent to you as soon as they are ready.
C
You would be send your laboratory reports as soon as they will be ready.
D
Your laboratory reports should be sent to you as soon as they will be ready.

Question 23Single Answer

I saw the master conducting the orchestra.

A
I saw that the orchestra was being conducted by the master.
B
I saw the orchestra being conducted by te master
C
The master was seen conducting the orchestra by me.
D
The master was conducting the orchestra and I saw that.

Question 24Single Answer

The dog is being fed by us.

A
We fed the dog.
B
We have had been feeding the dog.
C
We are feeding the dog
D
We had been feeding the dog

Question 25Single Answer

When did Rohit return my bike?

A
When was my bike returned by Rohit?
B
When was it that Rohit returned my bike?
C
Rohit returned my bike when?
D
When did my bike come back from Rohit?

Electrical Engineering

Question 26Single Answer

Assuming both the voltage sources are in phase, the value of R for which maximum power is transferred from circuit A to circuit B is

A
0.8 Ω
B
1.4 Ω
C
2 Ω
D
2.8 Ω

Question 27Single Answer

For the intrinsic gallium-arsenide, the conductivity at room temperature 25°C is 10^-6 (ohm-m)^-1, the electron and hole nobilities are 0.85 m²/V-s and 0.04 m²/V-s respectively. What is the intrinsic carrier concentration at the room temperature?

A
7.0 × 10¹² m^-3
B
7.0 × 10^-12 m^-3
C
7.0 × 10^-12 m³
D
7.0 × 10¹² m³

Question 28Single Answer

The resistivity of intrinsic germanium at 30°C is 0.46 –m. What is the intrinsic carrier density at 30°C if the electron mobility is 0.38 m²/V-s and the hole mobility is 0.18 m²/V-s?

A
9.2 × 10⁵/m³
B
2.77 × 10³/m³
C
2.43 × 10¹⁹/m³
D
8.9 × 10¹²/m³

Question 29Single Answer

Heat conduction in a semiconductor takes place

A
By the mobility of the carriers
B
Due to energy gap between conduction band and valency band
C
By the holes and thermal vibrations of atoms
D
By the electrons and thermal vibrations of atoms

Question 30Single Answer

Brewster angle is the angle when a wave is incident on the surface of a perfect dielectric at which there is no reflected wave and the incident wave is

A
Parallel polarized
B
Perpendicularly polarized
C
Normally polarized
D
None of the above

Question 31Single Answer

An electrical breakdown of a p-n junction occurs if

A
Forward voltage increases up to the rating
B
Reverse voltage increases beyond the rating
C
Forward voltage decreases below the rating
D
Reverse voltage decreases below the rating

Question 32Single Answer

The chief deterrent to the widespread application of superconducting materials is

A
Very difficult to form, machine or case
B
The difficult in attaining and maintaining extremely low temperature
C
The poor strength-to-weight ratio
D
The lower oxidation rate at elevated temperatures

Question 33Single Answer

Which one of the following properties is not observed in the carbon nanotubes ?

A
High stiffness and strengths
B
Low densities
C
Unusual electrical property
D
Non-ductile

Question 34Single Answer

The evidence for the importance of electron-phonon interaction in super-conductors comes from

A
Meissner effect
B
Josephson effect
C
Isotope effect
D
x quantization experiments

Question 35Single Answer

Which one of the following materials is used for cable insulation ?

A
Phenol formaldehyde
B
Polytetrafluoroethylene
C
Polyvinyl chloride
D
Acrylonitrile butadiene styrene

Question 36Single Answer

For high speed reading and storing of information in a computer, the material used is

A
Ferrite
B
Piezoelectric
C
Pyroelectric
D
Ferromagnetic above 768°C

Question 37Single Answer

The temperature above which an anti-ferromagnetic material becomes paramagnetic is called

A
Peak temperature
B
Neel temperatur
C
Critical temperature
D
Weiss temperature

Question 38Single Answer

Which effect is the converse of Peltier effect ?

A
Seeback effect
B
Thomson effect
C
Hall effect
D
Joule effect

Question 39Single Answer

Magnetic materials which may be readily magnetized in either direction are

A
Soft magnetic materials
B
Hard magnetic materials
C
High eddy current loss materials
D
High hysteresis loss materials

Question 40Single Answer

Consider the following statements regarding a ferromagnetic material:
1.Below the ferromagnetic Curie temperature, the ferromagnetic materials exhibit hysteresis effect.
2.The coercive force is the filed required to reduce the flux density to zero.
Which of the above statements is/are correct?

A
Both 1 and 2
B
Neither 1 nor 2
C
1 only
D
2 only

Question 41Single Answer

The impact ionization phenomenon in semiconductor may be viewed as the reverse process of

A
Radiative recombination
B
Auger recombination
C
Surface recombination
D
Shockley-Read-Hall recombination

Question 42Single Answer

Refractive index of a slice glass can be reduced by doping it with tiny amount of

A
GeO₂
B
B₂O₃
C
P₂O_5x
D
Al₂O₃

Question 43Single Answer

If a diameter of a copper wire is increased by two times keeping its terminal voltage same, then the drift velocity will

A
Become twice
B
Become half
C
ecome four times
D
Remain unchanged

Question 44Single Answer

In an induction type energy meter, the steady speed attained by the rotating disc is
1.Proportional to the deflecting torque.
2.Proportional to the resistance of the path of eddy currents.
3.Inversely proportional to the effective readings of disc from its axis.
4.Inversely proportional to the square of brake magnetic flux.
Which of the above are correct?

A
1, 2 and 3 only
B
1, 2 and 4 only
C
2, 3 and 4 only
D
1, 2, 3 and 4

Question 45Single Answer

If ‘KCLFTSB’ stands for ‘best of luck’ and ‘SHSWDG’ stands for ‘good wishes’, which of the following indicates ‘ace the exam’?

A
MCHTX
B
MXHTC
C
XMHCT
D
XMHTC

Question 46Single Answer

Consider the following statements associated with the basic electrostatic properties of ideal conductors:
1.The resultant field inside is zero.
2.The net charge density in the interior is zero.
3.Any net charges reside on the surface.
4.The surface is always equipotential.
5.The field just outside is zero.
Which of the above statements are correct?

A
1, 2, 3 and 4
B
3, 4 and 5 only
C
1, 2 and 3 only
D
2 and 3 only

Question 47Single Answer

A semiconductor device made out of a material having very high temperature coefficient of resistance is

A
Transistor
B
Varistor
C
Thyristor
D
Thermistor

Question 48Single Answer

The electrical conductivity of a semiconductor increases with increase in temperature because

A
The carrier concentration increases
B
The mobility of carrier increases
C
Both carrier concentration and mobility increases
D
The band gap decreases

Question 49Single Answer

Which of the following are associated with soft superconductors?
1.Silsbee’s rule
2.Meissner effect
3.Faraday rotation
4.Curie-Weiss law

A
2, 3 and 4
B
1 and 3 only
C
1 and 2 only
D
2 and 3 only

Question 50Single Answer

In a two-channel oscilloscope operating in x-y mode, two in-phase 50 Hz sinusoidal waveforms of equal amplitude are fed to the two channels. What will be the resultant pattern on the screen?

A
An ellipse
B
A parabola
C
Straight line inclined at 45 with respect to x-axis
D
A circle

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Electrical Engineering

Question 51Single Answer

Materials, whose resistivity at very low temperature plunges from a finite value to zero and remains there upon further cooling, are known as

A
Ferromagnetic materials
B
High-energy hard magnetic materials
C
Superconductors
D
Ferromagnetic materials

Question 52Single Answer

In a superconductor, is the temperature is decreased below its critical temperature, the value of critical magnetic field will

A
Increase
B
Decrease
C
Not change
D
Increase or decrease depending on the superconductor material

Question 53Single Answer

The imaginary part of dielectric constant determines

A
Component of current which is in phase with the applied field
B
Component of energy absorbed per m³
C
Amount of applied field
D
Component of voltage which is in phase with the applied field

Question 54Single Answer

Direction: Each of the items consists of two statements, one labeled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answers to these items using the codes given below

A
Statement (I):Hard magnetic materials are used for making permanent magnets.
Statement (II):
Hard magnetic materials have relatively small and narrow hysteresis loop.
B
Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
C
Both Statement (I) and Statement (II) are individually true and Statement (II) is NOT the correct explanation of Statement (I)
D
Statement (I) is true but Statement (II) is false
E
Statement (I) is false but Statement (II) is true

Question 55Single Answer

In 8085A microprocessor, the operation performed by the instruction LHLD 2100 H is

A
(H) ← 21 H, (L) ←00
B
(H) ← M (2100 H), (L) ←M(2101H)
C
(H) ← M (2100 H), (L) ←M(2100H)
D
(H) ← 00H, (L) ←21H

Question 56Single Answer

If the magnetic susceptibility of a specimen is small and positive, the specimen is

A
Diamagnetic
B
Paramagnetic
C
Ferromagnetic
D
Non-magnetic

Question 57Single Answer

Manganese ferrite is a 1 : 1 mixture of

A
Manganese nitride and iron oxide
B
Manganese oxide and iron nitride
C
Manganese nitride and iron sulphide
D
Manganese oxide and iron sulphide

Question 58Single Answer

When a ferromagnetic substance is magnetized, small changes in dimensions occur. Such a phenomenon is known as

A
Magnetic hysteresis
B
Magnetic expansion
C
Magnetostriction
D
Magneto-calorisation

Question 59Single Answer

In ferromagnetic , anti-ferromagnetic and ferromagnetic materials, the atomic thermal motions counteract the coupling forces between the adjacent atomic dipole moments, thereby causing

A
Some dipole misalignment regardless of whether an external field is present
B
Increase in dipole alignment regardless of whether an external field is present
C
No effect on dipole alignment
D
Atoms tend to de-randomize the direction of moments

Question 60Single Answer

The Hall effect voltage in intrinsic silicon

A
Is positive
B
Is zero
C
Is negative
D
Changes its sign based on application of magnetic field

Question 61Single Answer

Most outstanding property of indium antimonide is

A
A very wide range gap
B
High resistivity at room temperature
C
High carrier mobility
D
Very low conductivity at room temperature

Question 62Single Answer

Which of the following semiconducting compounds is used in photoconductive devices?

A
Caesium antimonide
B
Barium oxide
C
Lead sulphide
D
Zinc oxide

Question 63Single Answer

Consider the following transducers:
1.LVDT
2.Piezoelectric
3.Thermocouple
4.Photovoltaic cell
Which of the above are active transducers?

A
1, 2 and 3
B
1, 2 and 4
C
2 and 3 only
D
2, 3 and 4

Question 64Single Answer

Consider the following statements regarding magnetic materials:
1.A diamagnetic material has no permanent dipole
2.Paramagnetic material has anti-parallel orientation of equal moments with neighboring dipoles
3.Ferrimagnetic material has anti parallel orientation of unequal moments between neighboring dipoles
4.Anti-ferromagnetic material has negligible interaction between neighboring dipoles
Which of these statements are correct?

A
1 and 2
B
3 and 4
C
2 and 4
D
1 and 3

Question 65Single Answer

Consider the following statements regarding hysteresis loops of hard and soft magnetic materials:
1.Hysteresis loss of hard magnetic material will be less than that of soft material
2.Coercivity of hard materials will be greater than that of soft material
3.Retentivity of the two materials will always be equal
Which of these statements are correct?

A
1, 2 and 3
B
2 only
C
3 only
D
1 and 3 only

Question 66Single Answer

Loss-tangent in plane waves in lossy dielectrics will be

A
Proportional to the Y component of the magnetic field intensity (H_Y)
B
Inversely proportional to the Y component of the magnetic field intensity (H_Y)
C
Inversely proportional to the X component of the magnetic field intensity (H_X)
D
proportional to the X component of the magnetic field intensity (H_X)

Question 67Single Answer

Orientational polarization is

A
Inversely proportional to temperature and proportional to the square of the permanent dipole moment
B
proportional to temperature as well as to the square of the permanent dipole moment
C
proportional to temperature and inversely proportional to the square of the permanent dipole moment
D
Inversely proportional to temperature as well as to the square of the permanent dipole moment

Question 68Single Answer

Behavior of conductors, semiconductors and insulators is explained on the basis of

A
Atomic nature
B
Molecular structure
C
Energy band structure
D
All of the above

Question 69Single Answer

In general, for a superconductor, which of the following statements is true?

A
A superconductor is a perfect paramagnetic material with the magnetic susceptibility equals to positive unity
B
A superconductor is a perfect diamagnetic material with the magnetic susceptibility equals to negative one
C
A superconductor is a perfect ferromagnetic material with the magnetic susceptibility equals to positive one
D
A superconductor is a perfect piezoelectric material with the magnetic susceptibility equals to negative one

Question 70Single Answer

Ferro-electric materials have a

A
High dielectric constant which varies non linearly
B
Low dielectric constant and is non-linear
C
High dielectric constant which varies linearly
D
Low dielectric constant but linear

Question 71Single Answer

In the magnetic core the electromotive forces (emf) induced in accordance with Faraday’s law of electromagnetic induction give rise to

A
Eddy current
B
Excitation current
C
Armature current
D
Field current

Question 72Single Answer

Consider the following characterizing parameters of a material:
1.Magnetic permeability
2.Electron relaxation time
3.Electron effective mass
4.Energy band gap
In case of metals, increase in one of the above parameter decreases its conductivity, while increase in another increases the conductivity. There are respectively

A
1 and 3
B
3 and 2
C
4 and 3
D
1 and 2

Question 73Single Answer

Some magnetic materials may be classified on the basis of
1.Susceptibility
2.Saturation
3.Spin arrangement
4.Nature of hysteresis loop
5.Domain structure
6.Critical temperature above which it behaves as a paramagnetic material
Which of these can be used to distinguish between ferri and ferromagnetic materials?

A
1, 3 and 4 only
B
2, 3 and 6 only
C
3, 4 and 5 only
D
1, 2, 3, 4, 5 and 6

Question 74Single Answer

Magnetism is mainly due to only electron spin around their axis in case of

A
Diamagnetic materials
B
Paramagnetic materials
C
Ferromagnetic materials
D
Paramagnetic and Diamagnetic materials

Question 75Single Answer

For Paramagnetic materials, the relative permeability is

A
Less than unity but magnetic susceptibility is relatively small and positive
B
greater than unity and magnetic susceptibility is relatively small but positive
C
equal to unity and magnetic susceptibility is relatively large but positive
D
Less than unity but magnetic susceptibility is relatively large and positive

Question 76Single Answer

Permalloy and Mumetal are examples of

A
Silicon and iron alloys
B
Nickel and iron alloys
C
Cobalt and iron alloys
D
Permanent magnetic materials

Question 77Single Answer

When a ferromagnetic substance is magnetized, the phenomenon of ‘magnetostriction’ causes

A
Increase in the body temperature
B
Change in the permeability of the substance
C
Small change in its dimensions
D
Decrease in the saturation flux-density

Question 78Single Answer

The resistivity of ‘Ferrites’ is very much higher than that of ferromagnetic metals, because

A
Ferrites are chemical compounds and the electrons in them are subject to restraint of valence forces
B
Ferrites have a low eddy current loss
C
Ferrites have a non-homogeneous molecular structure
D
Ferrites have varying flux-density inside the core

Question 79Single Answer

When the temperature exceeds the transition temperature, a ferromagnetic material becomes similar to

A
Anti- ferromagnetic material
B
Diamagnetic material
C
ferrimagnetic material
D
paramagnetic material

Question 80Single Answer

Einstein relation is referred between

A
The diffusion constant and the mobility
B
The conduction and diffusion currents
C
The conduction and diffusion voltages
D
None of the above

Question 81Single Answer

In a piezoelectric crystal oscillator, the oscillation or tuning frequency is linearly proportional to the

A
Mass of the crystal
B
Square root of the Mass of the crystal
C
Square of the Mass of the crystal
D
Inverse of the Square root of the Mass of the crystal

Question 82Single Answer

Which of the following are piezoelectric substances?
1.Barium Titanate
2.Lead Titanate
3.Lead Zirconate
4.Cadmium Suplhate

A
1, 2 and 4
B
1, 3 and 4
C
1, 2 and 3
D
2, 3 and 4

Question 83Single Answer

Consider the following statements:
1.Fermi level in a p-type semiconductor lies close to the top of the valence bond.
2.The forbidden energy in Germanium at 0°K is exactly 0.75 eV.
3.When a p-n junction is reverse biased, then electrons and holes move away from the junction.
Which of these statements are correct?

A
1, 2 and 3
B
1 and 2 only
C
2 and 3 only
D
1 and 3 only

Question 84Single Answer

For a fully transposed transmission line

A
positive negative and zero sequence impedances are equal
B
positive and negative sequence impedances are equal
C
zero and positive sequence impedances are equal
D
negative and zero sequence impedances are equal

Question 85Single Answer

The unit of magnetic flux density is

A
Gauss
B
Tesla
C
Bohr
D
Wber/sec

Question 86Single Answer

Skin depth is the distance from the conductor surface where the field strength has fallen to

A
of its strength at the surface
B
of its strength at the surface
C
(1/ ) of its strength at the surface
D
(1/ ) of its strength at the surface

Question 87Single Answer

The electric field in the vicinity of two oppositely charged parallel conductors is

A
Radial uniformly
B
In parallel lines between the two imaginary parallel planes passing through the centers of the two conductors
C
Non uniform and its direction changes from point to point
D
In parallel circular paths between the two conductors, with the center of the circles located at the mid-point of a line joining the two centers of the two conductors

Question 88Single Answer

Two charges are placed at a distance apart. Now, if a glass slab is inserted between them, then the force between the charges will

A
Reduce to zero
B
Increase
C
Decrease
D
Not change

Question 89Single Answer

The transfer function of a second order real system with a perfectly flat magnitude response of unity has a pole at (2 – j3). List all the poles and zeros.

A
Poles at (2 ± j3), no zeroes.
B
Poles at (±2 - j3), no zeroes.
C
Poles at (2 - j3),(-2 + j3) zeroes at (-2 – j3), (2 + j3).
D
Poles at (2 ± j3), zeroes at (-2 ± j3).

Question 90Single Answer

The presence of one of the following materials, in iron or steel for use as a magnetic material, tends to reduce the hysteresis loss

A
Carbon
B
Sulphur
C
Phosphorous
D
Silicon

Question 91Single Answer

The depth of penetration of a wave in a lossy dielectric increases with increasing

A
Conductivity
B
Permeability
C
Wavelength
D
Permittivity

Question 92Single Answer

Match List-I and List-II and select the correct answer using the code given below the lists:
List-I List-II
A.Carbon (Diamond) 1. Conducting
B.Silicon 2. Semiconducting
C.Tin (Grey) 3. Insulating
D.Lead

A
A B C D

3 2 1 1
B
1 2 1 3
C
3 1 2 1
D
1 1 2 3

Question 93Single Answer

It is possible to destroy the superconductivity of a material by applying

A
A strong magnetic field
B
A temperature much below the transition temperature
C
A strong electric field
D
A pressure below that of the atmosphere

Question 94Single Answer

Consider the following properties regarding insulation for cables:
1. A low specific resistance
2. High temperature withstand
3. High dielectric strength
Which of the above properties of insulation are correct while using cables?

A
1 and 2 only
B
1 and 3 only
C
2 and 3 only
D
1,2 and 3

Question 95Single Answer

The open loop poles of a third order unity feedback system are at 0, -1, -2, let the frequency corresponding to the point, where the root locus of the system transits to unstable region be K. now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is correct about the point, where the root locus of the modified system transits to unstable region?

A
it corresponds to a frequency greater than K
B
it corresponds to a frequency less that K
C
it corresponds to a frequency K
D
Root locus of modified system never transits to unstable region

Question 96Single Answer

Which of the following moving particles cannot be deflected by magnetic fields?

A
α - Particles
B
Neutrons
C
Protons
D
Electrons

Question 97Single Answer

The Fermi level in an n-type semiconductor at zero degree kelvin lies

A
Below the donor level
B
Half-way between the conduction band and the donor level
C
Half-way between the conduction band and the valence level
D
Close to the valence band

Question 98Single Answer

According to free electron theory, electrons in a metal are subjected to

A
Constant potential
B
Sinusoidal potential
C
Square wave potential
D
Non-periodic potential

Question 99Single Answer

Controlled addition of group III element to an elemental semiconductor results in the formation of

A
Intrinsic semiconductor
B
n-type semiconductor
C
p-type semiconductor
D
Degenerate semiconductor

Question 100Single Answer

Phonons (Quanta of lattice vibration) obey

A
Maxwell distribution
B
Maxwell-Boltzmann distribution
C
Fermi-Dirac distribution
D
Bose-Einstein distribution

Question 101Single Answer

Did not you buy…………..when you went shopping?

A
any paper
B
much paper
C
no paper
D
a few paper

Question 102Single Answer

Consider the following standard symbols for two-port parameters :
1.h₁₂ and h₂₁ are dimensionless.
2.h₁₁ohms and B have dimensions of ohms.
3.BC is dimensionless.
4.C is dimensionless.
Which of the above are correct ?

A
1, 2 and 3 only
B
1, 2 and 4 only
C
3 and 4 only
D
1, 2, 3 and 4

Question 103Single Answer

An iron-cored choke coil has an equivalent resistance of 5Ω. It draws 10 A when the applied voltage is 240V, 50Hz. Its inductance and power factor respectively are

A
7.5 mH and 0.1 (lag)
B
74.7 mH and 0.1 (lag)
C
74.7 mH and 0.208 (lag)
D
7.5 mH and 0.208 (lag)

Question 104Single Answer

A voltage of 100 V is applied to an impedance of Z = (3 + j4) Ω. What are the values of active power, reactive power and volt-amperes respectively ?

A
1200 W, 1220 VAR and 2000 VA
B
1600 W, 1600 VAR and 2200 VA
C
1200 W, 1600 VAR and 2000 VA
D
1600 W, 1200 VAR and 2200 VA

Question 105Single Answer

The voltage across an impedance Z is 100∠15° V and the current through Z is 20∠-45° A. The active and the reactive powers in Z respectively are

A
1000 W and 1732 VAR
B
500 W and 1732 VAR
C
1000 W and 6000 VAR
D
500 W and 6000 VAR

Question 106Single Answer

An a.c. source of 200 V r.m.s. supplies an active power of 1200 W and a reactive power of 1600 VAR to a load. The r.m.s. current and the power factor of the load respectively are

A
10 A and 0.6
B
8 A and 0.8
C
10 A and 0.8
D
8 A and 0.6

Question 107Single Answer

A shunt capacitor used for reactive power compensation is operated at 98% of its rated frequency and 95% of its rated voltage. The reactive power supplied by this capacitor (as compared to its rated capacity) is

A
7.9% lower
B
11.5% lower
C
11.5% higher
D
7.9% higher

Question 108Single Answer

Consider two nodes A and B connected by an impedance of j5 W. If the voltages at nodes A and B are 100∠30° V and 100∠0° V respectively, the real power that can be transferred from node A to B is

A
2000 W
B
1000 W
C
2769 W
D
276.9 W

Question 109Single Answer

The Thevenin equivalent voltage and resistance across AB shown in the figure respectively are

A
5 V and 5 Ω
B
25 V and 3 Ω
C
35 V and 2 Ω
D
25 V and 5 Ω

Question 110Single Answer

The theorem which states that in any linear, non-linear, passive, active, time-variant, time-invariant network, summation of instantaneous power is zero will be called as

A
Tellegen’s theorem
B
Compensation theorem
C
Reciprocity theorem
D
Superposition theorem

Question 111Single Answer

Transients are cause because
1.The load is suddenly connected to or disconnected from the supply
2.Of the sudden change in applied voltage form one finite value to the other
3.Of the change in stored energy in inductors and capacitors
Which of the above statements are correct?

A
1 and 2 only
B
1 and 3 only
C
2 and 3 only
D
1, 2 and 3

Question 112Single Answer

Which of the following can produce maximum induced voltage?

A
1 A d.c. current
B
50 A d.c. current
C
1 A, 60 Hz a.c. current
D
1 A, 490 Hz a.c. current

Question 113Single Answer

For cleat wiring and 250 volts supply, the cables will be placed _____ a part centre to centre for single corw cables.

A
4.5 cm
B
2.5 cm
C
3 cm
D
4 cm

Question 114Single Answer

Which insulation is most widely used for covering wires/cables used in internal wiring ?

A
Paper
B
Wood
C
Glass
D
PVC

Question 115Single Answer

If the Q-factor of a coil at resonant frequency of 1.5 MHz is 150 for a series resonant circuit, then the corresponding bandwidth is

A
225 MHz
B
106 MHz
C
50 kHz
D
10 kHz

Question 116Single Answer

The number of p-n junctions in a thyristor (SCR) is/are:

Question 117Single Answer

In a two-wattmeter method of measuring power in a balanced 3-phase circuit, the ratio of the two wattmeter readings is 1 : 2. The circuit power

A
0.707
B
0.5
C
0.866
D
Indeterminate

Question 118Single Answer

A balanced delta-connected load (16 + j12)Ω/phase is connected to a 3-phase 230 V balanced supply. The line current and the real power drawn respectively are

A
19.9 A and 3.17 W
B
11.5 A and 6.34 W
C
19.9 A and 6.34 W
D
11.5 A and 3.17 W

Question 119Single Answer

A balanced load of 5 + j4 is connected in delta. What is the impedance per phase of the equivalent star connection?

A
5 + j4
B
1.66 + j1.33
C
15 + j12
D
2.5 + j2

Question 120Single Answer

In an electric circuit, the number of independent meshes M is

A
2B – N + 1
B
B – N + 1
C
2B – N – 1
D
B – N – 1

Question 121Single Answer

A.d.c. voltage of 12 volts applied across an inductance in series with a switch

A
Can produce the induced voltage as the current decreases when the switch is opened
B
Cannot produce the induced voltage as the voltage applied has the one polarity
C
Produces more induced voltage when the switch is closed than the switch is opened
D
None of the above

Question 122Single Answer

The power factor of a circuit in which voltage and current waves are non-sinusoidal is defined as

A
It is the cosine of the angle of phase difference between the voltage and current waves
B
It is the cosine of the angle of phase difference between the two complex waves
C
It is the cosine of the angle of phase difference between two equivalent sine waves having respectively r.m.s. values equal to those of the voltage and current in the circuit
D
It is the sine of the angle of phase difference between the two complex waves

Question 123Single Answer

The low-frequency circuit impedance and the high-frequency circuit impedance for a series resonant circuit respectively are

A
Capacitive and inductive
B
Inductive and capacitive
C
Resistive and inductive
D
Capacitive and resistive

Question 124Single Answer

Which of the following is an invalid state in an 8-4-2-1 binary codede decimal counter

A
1000
B
1001
C
0011
D
1100

Question 125Single Answer

The maximum space rate of change of the function which is in increasing direction of the function is known as

A
Curl of the vector function
B
Gradient of the scalar function
C
Divergence of the vector function
D
Stokes theorem

Reasoning

Question 126Single Answer

‘Gram’ is relatd to ‘Mass’ in the same way as ‘Centimetre’ is related to

A
Area
B
Volume
C
Length
D
Sound
E
Energy

Question 127Single Answer

'Mustard' is related to 'Seed' in the same way as 'Carrot' is related to

A
Fruit
B
Stem
C
Flower
D
Root
E
None of these

Question 128Single Answer

Which of the following pairs of words have the same relationship as Fan : Heat?

A
Water : Drink
B
Light : Night
C
Teach : Student
D
Air : Breathe
E
Food : Hunger

Question 129Single Answer

'Radish' is related to 'Root', in the same way as 'Brinjal' is related to

A
Fruit
B
Stem
C
Flower
D
Root
E
None of these

Question 130Single Answer

'Jackal' is related to 'Carnivorous', in the same way as 'Goat' is related to

A
Omnivorous
B
Carnivorous
C
Herbivorous
D
Multivorous
E
None of these

Question 131Single Answer

Which of the following pairs has similar relationship as Run : Race?

A
Party : Dance
B
Study : Book
C
Lecture : Study
D
Enjoy : Journey
E
None of these

Question 132Single Answer

Which of the following has same relationship as that of Money : Wealth?

A
Pity : Kindness
B
Cruel : Anger
C
Wise : Education
D
Pride : Humility
E
None of these

Question 133Single Answer

Which of the following is related to ‘Melody’, in the same way as ‘Delicious’ is related to 'Taste'?

A
Memory
B
Highness
C
Tongue
D
Speak
E
Voice

Question 134Single Answer

Offhand’ is related to ‘Premeditation’ in the same way as ‘Above board’ is related to

A
Integrity
B
Honesty
C
Guide
D
Competition
E
None of these

Question 135Single Answer

5 : 7 : : ? : 28

A
20
B
14
C
56
D
26
E
None of these

Question 136Single Answer

Which one is different form the remaining three?

A
GIJK
B
DFGH
C
CEFG
D
ABCD
E
None of these

Question 137Single Answer

Three of the following four are alike in certain way and so form a group. Which is one that does not belong to the group?

A
71
B
73
C
77
D
67
E
None of these

Question 138Single Answer

Unscramble the letters in the given words and find the odd one out.

A
UMRSME
B
EIWNTR
C
PIGRSN
D
LCUOD
E
None of these

Question 139Single Answer

What should come next in the following number series?
0 2 4 6 2 3 0 2 4 6 4 5 0 2 4 6 6 7 0 2?

Question 140Single Answer

What will be there is the place of question mark in the following series?
E G 3 5, I K 9 9, M O 1 9 5, Q S 3 2 3?

A
UW483
B
ZA26
C
TU420
D
ST380
E
None of these

Question 141Single Answer

What should come next in the following letter series?
A Z A B Y A B C X A B C D W A B C D E V A B C D E

A
U
B
T
C
A
D
G
E
None of these

Question 142Single Answer

What should come next in the following letter series?
H G F E D C B A G F E D C B A G F E D C B

A
E
B
G
C
F
D
B
E
None of these

Question 143Single Answer

What should come next in the following letter series?
Z X V T R P N L J Y W U S Q O

A
M
B
K
C
H
D
J
E
None of these

Question 144Single Answer

Which of the following should come next in the given sequence of numbers?
24 3 2 4 3 1 2 4 3 1 2 2 4 3 1 2 3 1 2 3 2 4 3 1 2 3

A
2
B
3
C
4
D
5
E
None of these

Question 145Single Answer

What should come next in the following letter series?
P P O PO N PO N M P O N M L P O N M L

A
P
B
K
C
J
D
I
E
None of these

Question 146Single Answer

What should come next in the following number series?
9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 9 8 7 6 5 4 3 2 2 3 4 5 6 7 8

A
8
B
1
C
9
D
2
E
None of these

Question 147Single Answer

What should come next in the following number series?
3 4 4 3 4 4 5 3 4 4 5 6 3 4 4 5 6 7 3 4 4 5 6

A
4
B
5
C
6
D
7
E
None of these

Question 148Single Answer

What should come next in the following letter series?
A A B A B C A B C D A B C D E A B C D E F

A
A
B
G
C
H
D
B
E
None of these

Question 149Single Answer

What should come in the place of the question mark (?) in the following series of combination of alpha-numerals and symbols?Y 9B*W*D7*U5F?

A
S 3 H *
B
T#H*
C
T*#H
D
S*H5
E
SH*1

Question 150Single Answer

What should come next in the following number series?9 7 5 3 1 1 8 6 4 2 2 9 7 5 3 1 8 6 4 2 2 9 7 5 3 1 8 6 4 2 9 7 5 3 1 8 6 4 2 9 7 5

A
1
B
8
C
3
D
5
E
None of these

Quantitative Aptitude

Question 151Single Answer

If A exceeds B by 40%, B is less than C by 20%, then A C is,:

A
28 : 25
B
26 : 25
C
3 : 2
D
3 : 1

Question 152Single Answer

What is the sum of 130+125+191 ?

A
335
B
456
C
446
D
426

Question 153Single Answer

, then x is equal to

Question 154Single Answer

A sum of money doubles itself at compound interest in 15 years. In how many years it will become eight times ?

A
30
B
45
C
50
D
60

Question 155Single Answer

Compound interest (compounded annually) on a certain sum of money for 2 years at 4% per annum is Rs. 102. The simple interest on the same sum for the same rate and for the same period will be

A
Rs. 99
B
Rs. 101
C
Rs. 100
D
Rs. 98

Question 156Single Answer

There are 5 red balls, 4 yellow balls and 3 green balls in a basket. If 3 ball are drawn at random. What is the probability that at least 2 of them are green in colour?

Question 157Single Answer

Which of the following fractions is in descending order ?

Question 158Single Answer

The value of

A
9
B
7
C
11
D

Question 159Single Answer

The square root of

Question 160Single Answer

If (1101)² = 1212201 find the value at

A
110.1
B
11.01
C
1.101
D
11.001

Question 161Single Answer

A discount of 15% on one article is the same as discount of 20% on a second article. The costs of the two articles can be

A
Rs. 85, Rs. 60
B
Rs. 60, Rs. 40
C
Rs. 40, Rs. 20
D
Rs. 80, Rs. 60

Question 162Single Answer

is equal to

A
-2
B
2
C
0
D
1

Question 163Single Answer

Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.

A
28 : 163
B
16 : 91
C
27 : 82
D
22 : 127

Question 164Single Answer

The simplified value of is

A
0.075
B
0.705
C
0.750
D
7.500

Question 165Single Answer

The digit in unit's place of the number
(1570)² + (1571)² + (1572)² + (1573)² is

Question 166Single Answer

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
MEND, PHJZ, SKFV, VNBR, ?

A
YJYN
B
YQXN
C
YRXO
D
YQZM

Question 167Single Answer

Select the option in which the numbers are related in the same way as are the numbers of the following set.
(12, 14, 143)

A
(12, 18, 246)
B
(17, 12, 134)
C
(16, 10, 235)
D
(15, 19, 252)

Question 168Single Answer

A
4
B
6
C
8
D
10

Question 169Single Answer

Select the option in which the numbers are NOT related in the same way as are the numbers of the following set.
(64, 91, 118)

A
(46, 73, 101)
B
(48, 75, 102)
C
(72, 99, 126)
D
(55, 82, 109)

Question 170Single Answer

is equal to

A
12.0
B
11.5
C
11.0
D
10.5

Question 171Single Answer

The simplified value of

Question 172Single Answer

Given that

= 3.6 and

= 11.4, then the value of

is equal to

A
36.164
B
37.254
C
36.254
D
37.154

Question 173Single Answer

The monthly income of three cricketers Ankit, Sanjay and Roshan, from different sources, are in the ratio of 12 : 9 : 7, and their expenditures are in the ratio 15 : 9 : 8. If Ankit saves 25% of his income for future investments, what is the ratio of the savings of Ankit, Sanjay and Roshan?

A
15 : 18 : 11
B
25 : 16 : 13
C
5 : 8 : 7
D
23 : 18 : 11

Question 174Single Answer

Given that

is approximately equal to 4898,

is nearly equal to

A
0.544
B
1.333
C
1.633
D
2.666

Question 175Single Answer

Which of the following numbers 0.1, 0.01, (0.11)²,

is greatest?

A
0.1
B
0.01
C
(0.11)²
D

Current Affairs

Question 176Single Answer

Who was appointed as India's Chef de Mission for the 2026 Commonwealth Games in Glasgow?

A
PT Usha
B
Abhinav Bindra
C
Rohit Rajpal
D
Anil Khanna

Question 177Single Answer

Which organization notified new National Sports Governance Rules in 2026?

A
NITI Aayog
B
SAI
C
Sports Ministry
D
IOA

Question 178Single Answer

The three-language formula issue is linked with:

A
GST Policy
B
PM Gati Shakti
C
NEP 2020
D
Digital India

Question 179Single Answer

Which court ruled that Lok Adalats cannot grant divorce decrees?

A
Bombay High Court
B
Delhi High Court
C
Allahabad High Court
D
Supreme Court

Question 180Single Answer

India-Oman CEPA provides tariff-free access to approximately what percentage of Indian exports?

A
100%
B
85%
C
99.38%
D
75%

Question 181Single Answer

The India-Oman CEPA became effective from:

A
May 1, 2026
B
June 1, 2026
C
July 1, 2026
D
August 1, 2026

Question 182Single Answer

India's Gross Value Added (GVA) growth is estimated at:

A
5.9%
B
6.2%
C
7.3%
D
8.1%

Question 183Single Answer

Which major conflict was among the issues to be discussed during Yvette Cooper's visit?

A
Russia-Ukraine
B
Israel-Palestine
C
Armenia-Azerbaijan
D
Sudan Crisis

Question 184Single Answer

UK Foreign Minister Yvette Cooper is scheduled to visit:

A
India and China
B
Japan and India
C
China and Russia
D
France and India

Question 185Single Answer

Morocco has recently emerged as Africa's:

A
Most industrialized economy
B
Largest democracy
C
Richest country
D
Largest exporter

Question 186Single Answer

Which country is strengthening strategic ties with India according to recent reports?

A
Hungary
B
Greece
C
Portugal
D
Cyprus

Question 187Single Answer

NATO tensions recently increased due to a Russian drone attack in:

A
Poland
B
Romania
C
Finland
D
Sweden

Question 188Single Answer

India and the United States resumed trade talks on 2 June 2026 in which city?

A
Mumbai
B
New Delhi
C
Bengaluru
D
Hyderabad

Question 189Single Answer

Which media company reportedly saw its stock rise after the FIFA deal announcement?

A
Sony
B
Disney
C
Netflix
D
Zee Entertainment

Question 190Single Answer

Australia's Defence Minister who participated in the dialogue was:

A
Richard Marles
B
Anthony Albanese
C
Peter Dutton
D
Penny Wong

Question 191Single Answer

India and Australia held their second Defence Ministers' Dialogue in:

A
New Delhi
B
Sydney
C
Mumbai
D
Canberra

Question 192Single Answer

Who launched the World Yogasana Championship 2026 initiative?

A
Kiren Rijiju
B
Dharmendra Pradhan
C
Ashwini Vaishnaw
D
Mansukh Mandaviya

Question 193Single Answer

The South Coast Railway (SCoR) became India's:

A
19th Railway Zone
B
17th Railway Zone
C
18th Railway Zone
D
16th Railway Zone

Question 194Single Answer

Which Grand Slam tournament was being played during the first week of June 2026?

A
Wimbledon
B
US Open
C
Australian Open
D
French Open (Roland-Garros)

Question 195Single Answer

The India-UK discussions mainly focused on:

A
Defence Pact
B
Free Trade Agreement
C
Space Cooperation
D
Climate Treaty

Question 196Single Answer

Which country's Business Secretary Peter Kyle visited India regarding FTA implementation?

A
Germany
B
France
C
United Kingdom
D
Australia

Question 197Single Answer

India's GDP growth for January–March 2026 is estimated at approximately:

A
5.8%
B
8.5%
C
7.2%
D
6.4%

Question 198Single Answer

The 2026 FIFA World Cup will be hosted by which three countries?

A
Canada, Spain, Mexico
B
USA, Brazil, Canada
C
Mexico, Argentina, USA
D
USA, Canada, Mexico

Question 199Single Answer

Which company secured FIFA World Cup 2026 broadcasting rights in India?

A
Sony Sports
B
Star Sports
C
Zee Entertainment
D
JioStar

Question 200Single Answer

Who is India's Commerce and Industry Minister leading the India-US trade discussions?

A
Nirmala Sitharaman
B
Rajnath Singh
C
Piyush Goyal
D
S. Jaishankar

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