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Objective Questions

Latest NALCO SUPT JOT Electrical Exam Question (Objective Questions), MCQ in English

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

Question Bank NALCO SUPT (JOT) Electrical Exam - English

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Technical Subject (Electrical)

Question 1Single Answer

The SI unit of electric current is?

A
Volt
B
Ohm
C
Ampere
D
Watt

Question 2Single Answer

The device used to measure electric current is?

A
Ammeter
B
Voltmeter
C
Ohmmeter
D
Galvanometer

Question 3Single Answer

Ohm’s Law states that?

A
E = mc²
B
P = VI
C
V = IR
D
F = ma

Question 4Single Answer

The SI unit of resistance is?

A
Ohm
B
Ampere
C
Volt
D
Coulomb

Question 5Single Answer

Electrical power is given by?

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

Question 6Single Answer

Frequency is measured in?

A
Joule
B
Tesla
C
Watt
D
Hertz

Question 7Single Answer

In a series circuit, current is?

A
Divided
B
Zero
C
Same everywhere
D
Infinite

Question 8Single Answer

In a parallel circuit, voltage is?

A
Divided
B
Infinite
C
Zero
D
Same across all branches

Question 9Single Answer

Kirchhoff’s Current Law is based on conservation of?

A
Energy
B
Charge
C
Power
D
Resistance

Question 10Single Answer

Kirchhoff’s Voltage Law deals with?

A
Current in junction
B
Sum of voltages in loop
C
Energy loss
D
Resistance calculation

Question 11Single Answer

Electrical energy is measured in?

A
Watt
B
Pascal
C
Newton
D
Joule

Question 12Single Answer

A conductor is a material which?

A
Blocks current
B
Allows current easily
C
Stores charge
D
Produces resistance only

Question 13Single Answer

An insulator is a material which?

A
Allows current easily
B
Has zero resistance
C
Restricts current flow
D
Produces voltage

Question 14Single Answer

A semiconductor has conductivity between?

A
Gas and plasma
B
Vacuum and air
C
Metal and liquid
D
Conductor and insulator

Question 15Single Answer

Example of a good conductor is?

A
Rubber
B
Glass
C
Plastic
D
Copper

Question 16Single Answer

Example of an insulator is?

A
Silver
B
Rubber
C
Copper
D
Aluminium

Question 17Single Answer

Power factor is the ratio of?

A
Resistance/Voltage
B
Energy/Time
C
Voltage/Current
D
Real power/Apparent power

Question 18Single Answer

Unit of electric charge is?

A
Volt
B
Coulomb
C
Ampere
D
Ohm

Question 19Single Answer

A short circuit occurs when?

A
Low resistance path exists
B
High resistance path exists
C
No current flows
D
Voltage is zero

Question 20Single Answer

Fuse is used for?

A
Increasing voltage
B
Measuring current
C
Protection against overcurrent
D
Storing energy

Question 21Single Answer

Resistance of a conductor depends on?

A
Frequency
B
Only voltage
C
Only current
D
Length and area

Question 22Single Answer

Increasing length of conductor resistance?

A
Decreases
B
Remains same
C
Becomes zero
D
Increases

Question 23Single Answer

Increasing cross-sectional area resistance?

A
Decreases
B
Increases
C
Remains same
D
Becomes infinite

Question 24Single Answer

Solder is mainly used for?

A
Joining metals
B
Insulation
C
Cutting wires
D
Increasing resistance

Question 25Single Answer

Flux is used in soldering to?

A
Increase resistance
B
Reduce voltage
C
Clean metal surface
D
Increase current

Question 26Single Answer

A voltmeter is always connected in?

A
Series
B
Ground only
C
Open circuit
D
Parallel

Question 27Single Answer

An ammeter is always connected in?

A
Series
B
Parallel
C
Open circuit
D
Ground only

Question 28Single Answer

Unit of power is?

A
Joule
B
Watt
C
Volt
D
Ampere

Question 29Single Answer

Electrical energy consumed is measured in?

A
Ampere
B
Watt-hour
C
Volt
D
Ohm

Question 30Single Answer

A battery converts?

A
Electrical to mechanical energy
B
Heat to light
C
Chemical to electrical energy
D
Mechanical to chemical energy

Question 31Single Answer

Current is defined as?

A
Voltage per resistance
B
Force per area
C
Energy per unit time
D
Flow of electric charge

Question 32Single Answer

Voltage is also called?

A
Current
B
Potential difference
C
Resistance
D
Power

Question 33Single Answer

Resistance is measured using?

A
Ammeter
B
Ohmmeter
C
Voltmeter
D
Wattmeter

Question 34Single Answer

Electric shock occurs due to?

A
High resistance
B
No current
C
Low voltage only
D
Current passing through body

Question 35Single Answer

Safety device used in electrical systems is?

A
Switch only
B
Wire only
C
Fuse
D
Battery

Question 36Single Answer

Electric power formula is?

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

Question 37Single Answer

Series circuit resistance is?

A
Sum of all resistances
B
Less than smallest resistor
C
Zero
D
Infinite

Question 38Single Answer

Parallel circuit resistance is?

A
Sum of resistances
B
Zero always
C
Infinite
D
Less than smallest resistance

Question 39Single Answer

Semiconductor devices are used in?

A
Electronics
B
Only heaters
C
Mechanical tools
D
Insulation

Question 40Single Answer

Diode allows current in?

A
Both directions
B
One direction
C
No direction
D
Random direction

Question 41Single Answer

Electrical energy is converted into heat in?

A
Generator
B
Motor
C
Transformer
D
Heater

Question 42Single Answer

The SI unit of frequency is?

A
Volt
B
Watt
C
Hertz
D
Joule

Question 43Single Answer

Conductivity is opposite of?

A
Voltage
B
Resistance
C
Current
D
Power

Question 44Single Answer

Which material has highest conductivity?

A
Rubber
B
Copper
C
Glass
D
Wood

Question 45Single Answer

Insulation material is used to?

A
Prevent leakage current
B
Increase current flow
C
Produce electricity
D
Measure voltage

Question 46Single Answer

Electric power depends on?

A
Only energy
B
Only resistance
C
Only frequency
D
Voltage and current

Question 47Single Answer

In a closed circuit current flows?

A
Continuously
B
Not at all
C
Only once
D
Randomly

Question 48Single Answer

Open circuit means?

A
Low resistance
B
High voltage
C
High current
D
Broken path

Question 49Single Answer

Electric current flows from?

A
Low to high potential
B
Zero potential only
C
High to low potential
D
Random direction

Question 50Single Answer

Kirchhoff’s laws are used in?

A
Circuit analysis
B
Biology
C
Chemistry
D
Mechanics

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Technical Subject (Electrical)

Question 51Single Answer

Energy is defined as?

A
Rate of work
B
Force applied
C
Capacity to do work
D
Pressure exerted

Question 52Single Answer

Work done in electric circuit is measured in?

A
Watt
B
Joule
C
Volt
D
Ampere

Question 53Single Answer

A resistor is used to?

A
Increase current only
B
Store energy
C
Oppose current flow
D
Generate voltage

Question 54Single Answer

A good solder joint should be?

A
Weak and rough
B
Insulated
C
Loose
D
Strong and clean

Question 55Single Answer

Artificial respiration is given when?

A
Person is conscious
B
Fever occurs
C
Breathing stops
D
Minor cut happens

Question 56Single Answer

PPE stands for?

A
Personal Power Equipment
B
Primary Power Equipment
C
Public Protection Equipment
D
Personal Protective Equipment

Question 57Single Answer

Electric energy unit used in billing is?

A
kWh
B
kW
C
Joule
D
Volt

Question 58Single Answer

A generator converts?

A
Electrical to chemical energy
B
Light to heat
C
Heat to chemical energy
D
Mechanical to electrical energy

Question 59Single Answer

Semiconductors are widely used in?

A
Cooking appliances
B
Hydraulic systems
C
Mechanical engines
D
Electronic circuits

Question 60Single Answer

The purpose of safety rules in electricity is to?

A
Increase power loss
B
Ensure safe working conditions
C
Increase voltage
D
Reduce efficiency

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 :

information given below and answer the question that follow.
The result of an exam is given below. Out of 1000 students who appeared
(i) 658 failed in Physics
(ii) 166 failed in Physics and Chemistry
(iii) 372 failed in Chemistry, 434 failed in Physics and Maths
(iv) 590 failed in Maths, 126 failed in Maths & Chemistry
Find the number of people who failed in (assuming that none is passed in all subjects.

We have the following equations:
a+ b + c + d + e + f + g = 1000
a + b + d + e = 658, b + d = 166
b + d + c + f = 372
d + e = 434 as in the figure.
d + e + f + g = 590, d + f = 126. Find the values

Chemistry but not in Physics.

A
318
B
198
C
213
D
206

Question 67Single Answer

Passage :

Direction: information given below and answer the question that follow.
The result of an exam is given below. Out of 1000 students who appeared
(i) 658 failed in Physics
(ii) 166 failed in Physics and Chemistry
(iii) 372 failed in Chemistry, 434 failed in Physics and Maths
(iv) 590 failed in Maths, 126 failed in Maths & Chemistry
Find the number of people who failed in (assuming that none is passed in all subjects.

We have the following equations:
a+ b + c + d + e + f + g = 1000
a + b + d + e = 658, b + d = 166
b + d + c + f = 372
d + e = 434 as in the figure.
d + e + f + g = 590, d + f = 126. Find the values

Physics or Maths but not in Chemistry.

A
558
B
718
C
628
D
None of these

Question 68Single Answer

Passage :

For the next four question that follow:
In a city, three daily newspapers A, B, C are published, 42% read A; 51% read B; 68% read C; 30% read A and B; 28% read B and C; 36% read A and C; 8% do not read any of the three newspapers.

Let x% people read all the three newspapers.
Since 8% people do not read any newspapers.
(x – 24) + (x – 7) + (x + 4) + (30 – x) + (36 – x) + (28 – x) + x = 92
→ x + 98 – 31 = 92
→ x = 92 – 67 = 25

What is the percentage of persons who read all the three papers ?

A
20%
B
25%
C
30%
D
40%

Question 69Single Answer

Passage :

For the next four : question that follow :
In a city, three daily newspapers A, B, C are published, 42% read A; 51% read B; 68% read C; 30% read A and B; 28% read B and C; 36% read A and C; 8% do not read any of the three newspapers.

What is the percentage of persons who read only two papers?

A
19%
B
31%
C
44%
D
None of these

Question 70Single Answer

Passage :

What is the percentage of persons who read only one paper ?

A
38%
B
48%
C
51%
D
None of these

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 major defence-related development was highlighted on 1 May 2026 involving India and Italy?

A
Joint naval exercise in the Indian Ocean
B
Purchase of Rafale jets
C
Rajnath Singh-Italy Defence Pact
D
Signing of a nuclear agreement

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 SUPT JOT Electrical Exam Question (Objective Questions), MCQ in English

Technical Subject (Electrical)

NALCO SUPT JOT Electrical Exam Online Question Bank Package

Technical Subject (Electrical)

Quantitative Aptitude

Reasoning

General Knowledge

English

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