Question for NALCO Technician (Electrical) Grade III 2026 - Quiz / Questions / MCQ

Objective Questions

Latest NALCO Technician Exam Question (Objective Questions), MCQ in English

Subjects : Technical Subject (Electrical), Quantitative Aptitude, Reasoning, General Knowledge, English

Question Bank NALCO Technician (Electrical) Exam - English

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Technical Subject (Electrical)

Question 1Single Answer

Electrical current is defined as?

A
Opposition to current
B
Flow of electrons
C
Energy per unit charge
D
Charge stored in capacitor

Question 2Single Answer

Ohm’s Law is expressed as?

A
Q = CV
B
P = VI
C
E = mc²
D
V = IR

Question 3Single Answer

Unit of resistance is?

A
Volt
B
Ampere
C
Watt
D
Ohm

Question 4Single Answer

KCL states?

A
Voltage sum is zero
B
Power is constant
C
Current entering = leaving
D
Resistance is zero

Question 5Single Answer

KVL states?

A
Current is constant
B
Voltage sum in loop is zero
C
Power is conserved
D
Resistance adds

Question 6Single Answer

Unit of charge is?

A
Volt
B
Coulomb
C
Ohm
D
Ampere

Question 7Single Answer

Resistance increases with?

A
Decrease in length
B
Increase in area
C
Increase in length
D
Decrease in temperature

Question 8Single Answer

Resistance is inversely proportional to?

A
Area
B
Length
C
Voltage
D
Current

Question 9Single Answer

Conductivity is reciprocal of?

A
Power
B
Resistance
C
Current
D
Voltage

Question 10Single Answer

Power unit is?

A
Volt
B
Watt
C
Ohm
D
Ampere

Question 11Single Answer

Electric power formula?

A
P = V/I
B
P = IR
C
P = VI
D
P = I/R

Question 12Single Answer

Capacitor stores energy in?

A
Magnetic field
B
Heat
C
Electric field
D
Motion

Question 13Single Answer

Capacitance unit is?

A
Farad
B
Henry
C
Tesla
D
Weber

Question 14Single Answer

Inductor stores energy in?

A
Electric field
B
Heat
C
Magnetic field
D
Light

Question 15Single Answer

Inductance unit is?

A
Henry
B
Farad
C
Ohm
D
Tesla

Question 16Single Answer

Series circuit current is?

A
Divided
B
Same
C
Zero
D
Infinite

Question 17Single Answer

Parallel circuit voltage is?

A
Same
B
Divided
C
Zero
D
Infinite

Question 18Single Answer

Series resistance equals?

A
Sum
B
Product
C
Inverse
D
Zero

Question 19Single Answer

Parallel resistance is?

A
Less than smallest
B
More than largest
C
Equal sum
D
Infinite

Question 20Single Answer

Electric field unit is?

A
N/C
B
Wb
C
Tesla
D
Joule

Question 21Single Answer

Coulomb’s law deals with?

A
Heat
B
Power
C
Current
D
Electrostatic force

Question 22Single Answer

Force depends on?

A
Time
B
Resistance
C
Temperature
D
Product of charges

Question 23Single Answer

Force inversely proportional to?

A
Power
B
Current
C
Voltage
D
Distance²

Question 24Single Answer

Potential unit is?

A
Watt
B
Ohm
C
Ampere
D
Volt

Question 25Single Answer

Work per charge is?

A
Current
B
Potential
C
Resistance
D
Power

Question 26Single Answer

Magnetic flux unit?

A
Tesla
B
Weber
C
Henry
D
Coulomb

Question 27Single Answer

Magnetic field unit?

A
Volt
B
Weber
C
Farad
D
Tesla

Question 28Single Answer

Faraday law relates to?

A
Induction
B
Heat
C
Resistance
D
Capacitance

Question 29Single Answer

Induced EMF depends on?

A
Power
B
Resistance
C
Flux change
D
Voltage

Question 30Single Answer

Lenz law gives?

A
Charge
B
Resistance
C
Power
D
Direction of induced EMF

Question 31Single Answer

Permeability is?

A
Electrical property
B
Thermal property
C
Magnetic property
D
Mechanical property

Question 32Single Answer

Reluctance is like?

A
Voltage
B
Current
C
Resistance
D
Power

Question 33Single Answer

Flux density symbol?

Question 34Single Answer

Ohm’s law valid for?

A
Nonlinear
B
Gases only
C
Ohmic conductors
D
Plasma only

Question 35Single Answer

Metal resistance with temperature?

A
Decreases
B
Infinite
C
Zero
D
Increases

Question 36Single Answer

Conductors have?

A
Free electrons
B
No electrons
C
No atoms
D
No charge

Question 37Single Answer

Insulators have?

A
Few free electrons
B
Many free electrons
C
No atoms
D
High conductivity

Question 38Single Answer

Frequency unit?

A
Volt
B
Watt
C
Hertz
D
Ohm

Question 39Single Answer

AC means?

A
Direct current
B
Alternating current
C
Amplified current
D
Adjusted current

Question 40Single Answer

DC means?

A
Direct current
B
Dual current
C
Dynamic current
D
Digital current

Question 41Single Answer

The SI unit of electric potential difference is?

A
Ampere
B
Volt
C
Ohm
D
Coulomb

Question 42Single Answer

Electric resistance depends on?

A
Current only
B
Voltage only
C
Length and area
D
Power only

Question 43Single Answer

Specific resistance is also called?

A
Resistivity
B
Conductance
C
Inductance
D
Capacitance

Question 44Single Answer

Unit of resistivity is?

A
A
B
Ω
C
Ω·m
D
V

Question 45Single Answer

Ohmic materials obey?

A
Kirchhoff’s law
B
Faraday’s law
C
Ohm’s law
D
Coulomb’s law

Question 46Single Answer

In a series circuit, voltage is?

A
Same
B
Zero
C
Divided
D
Infinite

Question 47Single Answer

In a parallel circuit, current is?

A
Same
B
Zero
C
Divided
D
Infinite

Question 48Single Answer

The reciprocal of resistance is?

A
Reactance
B
Inductance
C
Conductance
D
Impedance

Question 49Single Answer

Unit of conductance is?

A
Siemens
B
Ohm
C
Volt
D
Watt

Question 50Single Answer

Power factor is defined as?

A
V/I
B
Real power/apparent power
C
I/V
D
R/X

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Technical Subject (Electrical)

Question 51Single Answer

Inductive reactance depends on?

A
Frequency
B
Resistance
C
Voltage
D
Current

Question 52Single Answer

Capacitive reactance is inversely proportional to?

A
Resistance
B
Frequency
C
Voltage
D
Power

Question 53Single Answer

Impedance is combination of?

A
R and C only
B
R and L
C
R, L and C
D
Only R

Question 54Single Answer

Unit of impedance is?

A
Volt
B
Ohm
C
Watt
D
Ampere

Question 55Single Answer

RMS value is used for?

A
DC only
B
AC measurement
C
Power only
D
Resistance only

Question 56Single Answer

RMS value of AC is equal to?

A
Peak value
B
DC equivalent value
C
Zero
D
Average only

Question 57Single Answer

Peak factor is ratio of?

A
RMS/average
B
Average/peak
C
RMS/peak
D
Peak/RMS

Question 58Single Answer

Form factor is ratio of?

A
Peak/RMS
B
Power/current
C
Average/peak
D
RMS/average

Question 59Single Answer

In DC circuits frequency is?

A
50 Hz
B
Infinite
C
60 Hz
D
0 Hz

Question 60Single Answer

Electric energy unit is?

A
Watt
B
Volt
C
Joule
D
Ampere

Quantitative Aptitude

Question 61Single Answer

The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?

A
51:52
B
52:53
C
51:53
D
52:55

Question 62Single Answer

Which of the following numbers is irrational ?

A
√49
B
0.125
C
√2
D
22/7

Question 63Single Answer

356 x 936 – 356 x 836 = ?

A
35600
B
34500
C
9630
D
93600

Question 64Single Answer

Arrange in descending order: 5/8, 7/10, 3/4

A
3/4 > 7/10 > 5/8
B
7/10 > 3/4 > 5/8
C
3/4 > 5/8 > 7/10
D
5/8 > 7/10 > 3/4

Question 65Single Answer

What is (3^{^}{4} times 9^{^}{2}) ?

A
3⁶
B
3⁸
C
3¹⁰
D
9⁶

Question 66Single Answer

Passage :

Direction : Each of the questions below consists of a question and two statements numbered (I) and (II) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer :

How many employees of bank ‘X’ opted for VRS ?
(I) 18% of the 950 officer cadre employees and 6% of the 1100 of all other cadre employees opted for VRS.
(II) 28% of the employees in the age group of 51 to 56 and 17% of the employees in all other age groups opted for VRS.

A
Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
B
Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
C
BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
D
EACH statement ALONE is sufficient

Question 67Single Answer

Passage :

The area of a playground is 1600 square meters. What is its perimeter ?
(I) It is a perfect square playground
(II) It costs Rs.3200 to put a fence around the playground at the rate of Rs.20 per meter.

A
Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
B
Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
C
BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
D
EACH statement ALONE is sufficient

Question 68Single Answer

Passage :

What is the value of m – n ÷ 37 ?
(I) m is the largest possible six-digit number and n is the smallest possible six-digit number.
(II) The difference between m and n is known.

A
Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
B
Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
C
BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
D
EACH statement ALONE is sufficient

Question 69Single Answer

Passage :

What is the value of x ?
(I) If 10 is added to x, the result is 34.
(II) If x is multiplied by y, the result is 38.

A
Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
B
Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
C
BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
D
EACH statement ALONE is sufficient

Question 70Single Answer

Passage :

What was the total compound interest on a sum after three years ?
(I) The interest after one year was Rs. 100 and the sum after was Rs.1000.
(II) The difference between simple and compound interest on a sum of Rs.1000 at the end of two years was Rs.10.

A
Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
B
Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
C
BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
D
EACH statement ALONE is sufficient

Reasoning

Question 71Single Answer

How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?

A
Two
B
Three
C
Five
D
Four
E
None of these

Question 72Single Answer

Team A has scored more goals than Team B
Team C has scored fewer goals than Team B
Team A has scored fewer goals than Team C .
If the first two statements are true, the third statement is

A
True
B
False
C
Uncertain
D
None

Question 73Single Answer

If it is possible to make only one meaningful word with the second, the third, the sixth and the eight letters of the word FRAGMENT using each only once, which of the following will be the third letter of that word ? If no such word can be formed, give ‘X’ as the answer and if more than one such word can be formed, give ‘Y’ as the answer.

Question 74Single Answer

How many such letters are there in the word ORIENTAL each of which is as far away from the beginning of the word as when they are arranged alphabetically?

A
None
B
One
C
Two
D
Three
E
More than three

Question 75Single Answer

How many such pairs of letters in the word CREDIT each of which has as many letters between them in the word as in the English alphabet?

A
None
B
One
C
Two
D
Three
E
More than three

Question 76Single Answer

Passage :

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z .

Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet ?

Question 77Single Answer

Passage :

Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If the third alphabet of each of the words is changed to the next alphabet in the English alphabetical series, which of the following will form a meaningful English word?

A
SUM
B
BIG
C
Both BIG and THE
D
FOR
E
Both FOR and BIG

Question 78Single Answer

Passage :

Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be second from the right ?

A
AND
B
FOR
C
THE
D
BIG
E
SUM

Question 79Single Answer

Passage :

Direction: The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If second alphabet in each of the words is changed to next alphabet in the English alphabetical order, how many words having two vowels (same or different vowels) will be formed ?

A
None
B
One
C
Two
D
Three
E
Four

Question 80Single Answer

Passage :

How many letters are there in the English alphabetical series between the second letter of the word which is second from the right and the second letter of the word which is second from the left of the given words?

A
Two
B
Five
C
Six
D
Nine
E
Three

General Knowledge

Question 81Single Answer

Sattriya dance form is famous in which of these states ?

A
Assam
B
Himachal Pradesh
C
Punjab
D
Tamil Nadu

Question 82Single Answer

"Who said, 'India was a parrot unto itself'?

A
Malik Muhammad Joyce
B
Raskhan
C
Rich Khusrow
D
Rich Hasan

Question 83Single Answer

Which is the national game of Bhutan ?

A
badminton
B
basketball
C
football
D
archery

Question 84Single Answer

When was the Constituent Assembly of India formed?

A
1946
B
1947
C
1948
D
1950

Question 85Single Answer

Who is known as the "Father of the Indian Renaissance" ?

A
Raja Ram Mohan Roy
B
Swami Vivekananda
C
Rabindranath Tagore
D
Mahatma Gandhi

Question 86Single Answer

What is the study of ethics primarily concerned with ?

A
Economic behavior
B
Human values and moral principles
C
Physical health
D
Political systems

Question 87Single Answer

Who is known as the "Missile Man of India"?

A
Dr. Homi J. Bhabha
B
Dr. Vikram Sarabhai
C
Dr. APJ Abdul Kalam
D
Dr. Satish Dhawan

Question 88Single Answer

Which is the longest river in India?

A
Yamuna
B
Ganges
C
Brahmaputra
D
Godavari

Question 89Single Answer

Who among the following was associated with Enlightenment philosophy?

A
Voltaire
B
Shakespeare
C
Erasmus
D
All of the above

Question 90Single Answer

What astronomical discovery was announced by astronomers in March 2026?

A
New planet in solar system
B
Discovery related to 1,900 light-years away (specific object)
C
Black hole merger
D
Exoplanet with life signs

English

Question 91Single Answer

I go to Madurai by —– Vaigai Express

A
a
B
an
C
some
D
the

Question 92Single 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 93Single 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 94Single 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 95Single 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 96Single Answer

Passage :

Direction : Question below has two blanks, each blank indicting that some thing has been omitted. Choose the word for each blank which best fits the meaning of the sentence as a whole.

The Finance Department has ……………a centralized online databank system for all statutory government bodies to …………an eye on their assets and liabilities.

A
presented , stay
B
introduced , keep
C
announce , make
D
created , let
E
proclaimed , hold

Question 97Single Answer

Passage :

Direction : The five items in this section consists of a word or group of words followed by four words as (a), (b), (c) and (d). Select the word which is nearly opposite to the meaning of the original word or group of words and mark your response as (a), (b), (c) and (d), as the case may be, in your Answer Sheet.

Assets

A
liabilities
B
responsibilities
C
estates
D
profits

Question 98Single Answer

Passage :

Direction : In the question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Affidavit

A
Affirmation
B
Slander
C
Oath
D
Testimony

Question 99Single Answer

Passage :

Direction: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Hollow

A
Alveolate
B
Cleft
C
Cavernous
D
Solid

Question 100Single Answer

Passage :

Directions: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Cosset

A
Ignoreb
B
Close
C
Caress
D
Fondle

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Latest NALCO Technician Exam Question (Objective Questions), MCQ in English

Technical Subject (Electrical)

NALCO Technician Exam Online Question Bank Package

Technical Subject (Electrical)

Quantitative Aptitude

Reasoning

General Knowledge

English

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