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Objective Questions

Latest HCL Trade Apprentice Exam Question (Objective Questions), MCQ in English

Subjects : General Knowledge, Reasoning, English, Numerical Ability, Electrician

Question Bank HCL Trade Apprentice Exam (Electrician) - English

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General Knowledge

Question 1Single Answer

Yojna a weekly journal

A
Ministry of Finance
B
Ministry of Information and Broadcastin
C
Ministry of Rural Development
D
Planning Commission

Question 2Single Answer

Kurukshetra a journal on rural development is published by

A
Ministry of Finance
B
Ministry of Information and Broadcastin
C
Ministry of Rural Development
D
Planning Commission

Question 3Single Answer

Devaluation of a currency means

A
Fixing the value of the currency in conjuction with the movement in the value of a basket of predetermined currencies
B
Reduction in the value of a currency vis-à-vis major internationally traded currencies
C
Fixing the value of currency in multilateral consultaion with the IMF the World Bank and major trading partners
D
Permitting the currency to seek its worth in the international market

Question 4Single Answer

In India rural incomes are generally lower than the urban incomes, which of the following reasons account for this
1. a large number of farmers are illiterate and know little about scientific agriculture
2. prices of primary products are lower than those of manufactured products
3. Investments in agriculture has been low when compared to investment in industry

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

Question 5Single Answer

Which of the following programmes aims at the promotion of savings among rural women

A
Rashtriya Mahila Kosh
B
Indira Mahila Yojna
C
Jawahar Rozgar Yojna
D
Mahila Samridhi Yojna

Question 6Single Answer

What is Net National Product

A
the money value of final goods and services produced annually in the economy
B
the money value of annual service generation in the economy
C
the money value of tangible goods produced annually in the economy
D
The money value of tangible goods available in the economy

Question 7Single Answer

National income is the

A
net national product at market price
B
net national product at factor cost
C
net domestic product at market price
D
net domestic product at factor cost

Question 8Single Answer

Chelliah Committee of 1992 deals with the overhauling of our

A
financial system
B
tax system
C
patents and copyrights
D
Public sector undertakings

Question 9Single Answer

During which Five Year Plan was the annual growth rate of National Income the lowest

A
2^nd plan
B
3^rd plan
C
5^th plan
D
6^th plan

Question 10Single Answer

Which of the following taxes is a progressive tax

A
sales tax
B
custom tax
C
excise tax
D
income tax

Question 11Single Answer

"It is a complex of many variables, which surrounds man as well as the living organisms."
The given statement refers to which of the following ?

A
Atmosphere
B
Knowledge
C
Environment
D
None of these

Question 12Single Answer

Which of the following is incorrect regarding objectives of environmental studies ?

A
To enable children to have basic knowledge of various numerals, alphabets and the basic things we see everyday around us
B
To develop habit of performing task in a systematic manner and learn to carry out any activity with precision
C
Develop the habit of cramming in children for their lengthy task which help them in teaching-learning process
D
To make them understand simple graphs, maps, flowcharts and statistical tables.

Question 13Single Answer

Temperature can be expressed as derived quantity in terms of

A
length and mass
B
mass and time
C
length, mass and time
D
None of these

Question 14Single Answer

Which of the following is not a synthetic fibre:

A
Anygora
B
Rayon
C
Nylon
D
Polyster

Question 15Single Answer

Which of the following contain enzymes for cellular respiration ?

A
Dictyosomes
B
Endoplasmic reticulum
C
lysosomes
D
Mitochondria

Question 16Single Answer

Which country test-fired the long-range ballistic missile kheibar ?

A
Israel
B
Iran
C
UAE
D
Ukraine

Question 17Single Answer

Which city is set to launch Kaveri 2.0 web-based property registration application ?

A
Chennai
B
Bengaluru
C
Pune
D
Mysuru

Question 18Single Answer

Araku Valley Coffee, which was seen in the news, is from which state ?

A
Tamil Nadu
B
Andhra Pradesh
C
Assam
D
West Bengal

Question 19Single Answer

Which country recently launched its home grown space rocket Nuri ?

A
Russia
B
South Korea
C
Israel
D
UAE

Question 20Single Answer

Tina Turner, which was seen in the news, was associated with which profession ?

A
Author
B
Singer
C
Politician
D
Sports Person

Question 21Single Answer

Name the personality who has recently appointed as the Central Vigilance Commissioner .

A
Arvinda Kumar
B
Bimaljit Kaur
C
Praveen Kumar Srivastava
D
Sanjeev Kumar

Question 22Single Answer

In May 2023, which of the following civic transport bodies was awarded the FICCI’s Smart Mobility award ?

A
HRTC
B
MSRTC
C
UPSRTC
D
BEST

Question 23Single Answer

In May 2023, which of the following personalities was named the Smile Ambassador under Maharashtra’s Swachh Mukh Abhiyan to create awareness about oral health ?

A
M S Dhoni
B
Sachin Tendulkar
C
Virat Kohli
D
Manushi Chillar

Question 24Single Answer

In May 2023, which of the following International organizations launched a 2023-27 country partnership strategy for India ?

A
World Bank
B
International Monetary Fund
C
Asian Development Bank
D
New Development Bank

Question 25Single Answer

In May 2023, which of the following banks launched a new brand campaign with the slogan Life ko Banao Rich ?

A
ICICI Bank
B
State Bank of India
C
Yes Bank
D
Axis Bank

Reasoning

Question 26Single 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 27Single 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 28Single 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 29Single 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 30Single 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 31Single Answer

How many meaningful words can be made from the letters ‘LMEA’ using each letter only once in each word?

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

Question 32Single Answer

If it is possible to make only one meaningful word with the first, the second, the seventh and the eighth letters of the word TEMPORAL, which of the following will be the first letter of that word? If more than one such word can be made, give ‘Y’ as the answer and if no such word can be made, give ‘X’ as the answer.

Question 33Single Answer

If the letters of the word HANDOVER are arranged alphabetically from left to right how many letters will remain at the same position?

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

Question 34Single Answer

How many such pairs of letters are there in the word EXCURSION, each of which has as many letters between them in the word as they have in the English alphabet?

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

Question 35Single Answer

If it is possible to make only one meaningful word with the first, the second, the third, the sixth and the eighth letters of the word DEVIATION first letter of that word is your answer? If more than one such word can be made formed your answer is ‘A’ and if no such word can be formed your answer is ‘B’.

Question 36Single Answer

If each alternate letter beginning with the first in the word WORKING is replaced by the next letter in the English alphabet and each of the remaining letters is replaced by the previous letter in the English alphabet, which of the following will be the fourth from the right and after the replacement ?

A
N
B
Q
C
J
D
M
E
None of these

Question 37Single Answer

How many pairs of letters are there in the word ‘SHIFTED’ each of which has as many letters between its two letters as there are between in the English alphabet?

A
None
B
One
C
Two
D
Three
E
None of these

Question 38Single Answer

Statement: Is common currency a necessary ingredient for Europe’s growth ?
Arguments :
I. Yes, A common currency will enable entire Europe to market itself as one .
II. No, Similar experiments by Latin America countries have not affected their economies .

A
The only argument I is strong
B
Only argument II is strong
C
Either I or II is strong
D
Neither I nor II is strong

Question 39Single Answer

If it is possible to make only one meaningful word with the first, the fifth, the sixth, the tenth and the eleventh letters of the word EXCEPTIONAL using each letter only once, first letter of that word is your answer. If no such word can be made formed your answer is ‘X’ and if more than one such word can be formed your answer is ‘Y’.

Question 40Single Answer

How many meaningful English words can be formed with the letters RAE using each letter only once in each word?

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

Question 41Single 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 42Single 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 43Single 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 44Single 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 45Single 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

Question 46Single 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 in each of the given words, each of the consonant is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will no vowels appear?

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

Question 47Single Answer

Passage :

Direction : Following question is based on five words given below:
BRU LEGINKCATOWN
(The new words formed after performing the mentioned operations may or may not necessarily be meaningful English words)

If the third alphabet in each of the words is changed to the 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 48Single Answer

Passage :

If the position of the first and the second alphabets of each of the words are interchanged, which of the following will form a meaningful English word?

A
Both CAT and OWN
B
Both BRU and INK
C
Only CAT
D
Only INK
E
Only LEG

Question 49Single Answer

Passage :

Direction: Following question is based on five words given below:
BRU LEGINKCATOWN
(The new words formed after performing the mentioned operations may or may not necessarily be 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 exactly in the middle of the five words?

A
OWN
B
LEG
C
BRU
D
CAT
E
INK

Question 50Single Answer

Passage :

Direction: Following question is based on five words given below:
BRU LEGINKCATOWN
(The new words formed after performing the mentioned operations may or may not necessarily be meaningful English words)

If in each of the given words, each of the consonants is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will the same alphabet appear twice?

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

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English

Question 51Single Answer

I go to Madurai by —– Vaigai Express

A
a
B
an
C
some
D
the

Question 52Single 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 53Single 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 54Single 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 55Single 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 56Single 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 57Single 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 58Single 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 59Single 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 60Single 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 61Single 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 62Single 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 63Single 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 64Single 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 65Single 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.

Numerical Ability

Question 66Single 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 67Single Answer

Which of the following numbers is irrational ?

A
√49
B
0.125
C
√2
D
22/7

Question 68Single Answer

356 x 936 – 356 x 836 = ?

A
35600
B
34500
C
9630
D
93600

Question 69Single 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 70Single Answer

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

A
3⁶
B
3⁸
C
3¹⁰
D
9⁶

Question 71Single Answer

If 3⁴X^-2 = 729, then find the value of X.

Question 72Single Answer

Convert 0.6 into fraction ?

A
3/5
B
2/3
C
4/5

Question 73Single Answer

The no. plate of a bus had peculiarity. The bus number was a perfect square. It was also a perfect square when the plate numbers were reversed. The bus company had only five hundred buses numbered from 1 to 500. What was the number ?

A
169
B
36
C
196
D
Can not say

Question 74Single Answer

If a and b are positive integers, such that ab = 125, then (a-b)^a+b-4= ?

A
16
B
25
C
28
D
30

Question 75Single Answer

If x^*y = x² + y² – xy, then value of 9^*11 is

A
93
B
103
C
60.5
D
121

Question 76Single Answer

Which is greater ?

A
15/16
B
17/18
C
Equal
D
Cannot compare

Question 77Single Answer

If sum of two numbers is 42 and their product is 437, then find their difference.

Question 78Single Answer

Write the 44000 in Roman numerals

A
XLI
B
XLVI
C
XLIV
D
XLVIC

Question 79Single Answer

Convert 0.0909… into fraction ?

A
1/11
B
9/11
C
1/9
D
9/10

Question 80Single Answer

What is (98 times 102) ?

A
9996
B
10000
C
10096
D
10196

Question 81Single 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 82Single 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 83Single 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 84Single 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 85Single Answer

Passage :

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

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

Question 86Single 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 A but neither B nor C ?

A
4%
B
3%
C
1%
D
None of these

Question 87Single 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.

If A and B are any two sets, then what is A ᴖ (A ᴗ B) equal to ?

A
Complement of A
B
Complement of B
C
B
D
A

Question 88Single 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.

40% of the people read newspaper X, 50% read newspaper Y and 10% read both the papers. What percentage of the people read neither newspaper ?

A
10%
B
15%
C
20%
D
25%

Question 89Single Answer

Passage :

Read the passage below and solve the question based on it.
5% of the passengers do not like coffee, tea and lassi and 10% like all the three, 20% like coffee and tea, 25% like lassi and coffee and 25% like lassi and tea. 55% like coffee, 50% like tea, and 50% like lassi.

Where C = Coffee, T = Tea and L =Lassi

The passengers who like only coffee is greater than the passengers who like only lassi by

A
25%
B
100%
C
75%
D
0%

Question 90Single Answer

Passage :

Where C = Coffee, T = Tea and L =Lassi

The percentage of passengers who like both tea and lassi but not coffee, is

A
15
B
25
C
40
D
75

Electrician

Question 91Single 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 92Single 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 93Single 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 94Single 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 95Single 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 96Single 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 97Single 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 98Single 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 99Single 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 100Single 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 101Single 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 102Single 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 103Single Answer

Which effect is the converse of Peltier effect ?

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

Question 104Single 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 105Single 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 106Single Answer

When a very small amount of higher conducting metal is added to a conductor, its conductivity will

A
increase
B
decrease
C
remain the same
D
increase or decrease depending on the impurity

Question 107Single Answer

An electrically balanced atom has 30 protons in its nucleus and 2 electrons in its outermost shell. The materials made of such atom is

A
a conductor
B
an insulator
C
a semiconductor
D
a superconductor

Question 108Single Answer

The temperature coefficient of resistance of a doped semiconductor is

A
always positive
B
always negative
C
zero
D
positive or negative depending upon the level of doping

Question 109Single Answer

In the slice processing of an integrated circuit

A
components are formed in the areas where silicon dioxide remains
B
components are formed in the areas where silicon dioxide has been removed
C
the diffusing elements diffuse through silicon dioxide
D
only on diffusion process is used

Question 110Single Answer

Permanent magnet loses the magnetic behaviour when heated because of
1. atomic vibration
2. dipole vibration
3. realignment of dipoles
Which of the above are correct?

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

Question 111Single Answer

A Zener regulator has an input voltage varying between 20 V and 30 V. The desired regulated voltage is 12 V, while the load varies between 140

and 10k The maximum resistance in series with the unregulated source and Zener diode would be

A
3.3
B
6.6
C
36.6
D
93.3

Question 112Single Answer

A short in any type of circuit (series, parallel or combination) causes the total circuit
1. resistance to decrease
2. power to decreases
3. current to increase
Which of the above are correct?

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

Question 113Single Answer

An air-cored solenoid of 250 turns has a cross-sectional area A = 80 cm² and length l = 100 cm. The value of its inductance is

A
0.425 mH
B
0.628 mH
C
0.751 mH
D
0.904 mH

Question 114Single Answer

The current in a coil changes uniformly from 10 A to 1 A in half a second. A voltmeter connected across the coil gives a reading of 36 V. The self-inductance of the coil is

A
0.5 H
B
1 H
C
2 H
D
4 H

Question 115Single Answer

In a mutually coupled circuit, the primary current is reduced from 4A to zero in 10 s. A voltage of 40000 V is observed across the secondary. The mutual inductance between the coils is

A
100 H
B
10 H
C
0.1 H
D
0.01 H

Question 116Single Answer

A CRO screen has 10 divisions on the horizontal scale. If a voltage signal 5 sin (314t + 45°) is examined with a line base setting of 5 ms/div, the number of signals displayed on the screen will be

A
1.25 cycles
B
2.5 cycles
C
5 cycles
D
10 cycles

Question 117Single Answer

Which one of the following conditions will be correct when three identical bulbs forming a star are connected to a three-phase balanced supply?

A
The bulb in R phase will be the brightest
B
The bulb in Y phase will be the brightest
C
The bulb in B phase will be the brightest
D
All the bulbs will be equally bright

Question 118Single Answer

Loading by the measuring instruments introduces an error in the measured parameter. Which of the following devices gives most accurate result?

A
PMMC
B
Hot-wire
C
CRO
D
Electrodynamic

Question 119Single Answer

A moving-coil galvanometer can be used as a DC ammeter by connecting

A
a high resistance in series with the meter
B
a high resistance across the meter
C
a low resistance across the meter
D
a low resistance in series with the meter

Question 120Single Answer

Consider the following types of damping:
1. Air-friction damping
2.Fluid-friction damping
3.Eddy-current damping
PMMC type instruments use which of the above?

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

Question 121Single Answer

A semiconductor differs from a conductor in that it has

A
Only one path for the free electrons in the valence band
B
Only one path for holes in the conduction band
C
Two paths followed by free electrons and holes, one an ordinary path in the conduction band and the other one an extraordinary path in the valence band, respectively
D
Two paths followed by free electrons and holes, one an extraordinary path in the conduction band and the other one an ordinary path in valence band, respectively

Question 122Single Answer

Which of the following circuits is used for converting a sine wave into a square wave?

A
Monostablemultivibrator
B
Bistablemultivibrator
C
Schmitt trigger circuit
D
Darlington complementary pair

Question 123Single Answer

Which of the following elements of electrical engineering cannot be analyzed using Ohm’s law ?

A
Capacitors
B
Inductors
C
Transistors
D
Resistance

Question 124Single Answer

Consider the following statements: A power supply uses bridge rectifier with a capacitor input filter. If one of the diodes is defective, then
1. The dc load voltage will be lower than its expected value
2. Ripple frequency will be lower than its expected value
3. The surge current will increase considerably
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 125Single Answer

Three identical amplifiers each having a voltage gain of 50 are cascaded. The open loop voltage gain of the combined amplifier is

A
71 dB
B
82 dB
C
91 dB
D
102 dB

Question 126Single Answer

A clamper circuit
1. Adds or subtracts a dc voltage to or from a waveform
2. Does not change the shape of the waveform
Which of the above statements are correct?

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

Question 127Single Answer

If a carrier of 100% modulated AM is suppressed before transmission, the power saving is nearly

A
50%
B
67%
C
100%
D
125%

Question 128Single Answer

When the modulating frequency is doubled the modulation index is halved and the modulating voltage remains constant. This happens when the modulating system is

A
AM
B
PM
C
FM
D
Delta Modulation

Question 129Single Answer

The four basic elements in a PLL are loop filter, loop amplifier, VCO and

A
Up converter
B
Down converter
C
Phase detector
D
Frequency multiplier

Question 130Single Answer

In a frequency modulated (FM) system, when the audio frequency is 500 Hz and audio frequency voltage is 2.4 V, the frequency deviation is 4.8 kHz. If the audio frequency voltage is now increased to 7.2 V then what is the new value of deviation?

A
0.6 kHz
B
3.6 kHz
C
12.4 kHz
D
14.4 kHz

Question 131Single Answer

If a square matrix of order 100 has exactly 15 distinct eigenvalues, then the degree of the minimum polynomial is

A
At least 15
B
At most 15
C
Always 15
D
Exactly 100

Question 132Single Answer

For high speed reading and storing of information in a computer, the core shall be of

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

Question 133Single Answer

Soft magnetic materials should have

A
Large saturation magnetization and large permeability
B
Low saturation magnetization and large permeability
C
Large saturation magnetization and low permeability
D
Low saturation magnetization and low permeability

Question 134Single Answer

Orbital magnetic moment of an electron, in an atom, is of the order of

A
0.1 Bohr magneton
B
1.0 Bohr magneton
C
10 Bohr magneton
D
100 Bohr magneton

Question 135Single Answer

When the temperature of a ferromagnetic material exceeds the Curie temperature, it behaves similar to a

A
Diamagnetic material
B
Ferrimagnetic material
C
Paramagnetic material
D
Antiferromagnetic material

Question 136Single Answer

What is the correct sequence of the following materials in ascending order of their resistivity ?
1. Iron
2. Silver
3. Constantan
4. Mica
5. Aluminium
Select the correct answer using the codes given below :

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

Question 137Single Answer

In the first Cauer network, with a pole at infinity, the first element must be

A
Series capacitor
B
Series inductor
C
Shunt capacitor
D
Shunt inductor

Question 138Single Answer

The total magnetic moment
1. is called saturation magnetization.
2. depends on the number of magnetic dipoles per unit volume, the instant electric current and the area of the current loop.
Which of the above statements is/are correct ?

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

Question 139Single Answer

Susceptibility of a diamagnetic material is 1. Negative
2. Positive
3. Dependent on the temperature
4. Independent of the temperature

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

Question 140Single Answer

Superconductivity is a material property associated with

A
Changing shape by stretching
B
Stretching without breaking
C
A loss of thermal resistance
D
A loss of electrical resistance

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