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 2Single 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 3Single 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.
A
A
B
E
C
T
D
X
E
Y
Question 4Single 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 5Single 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 6Single 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 7Single 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.
A
T
B
L
C
E
D
Y
E
X
Question 8Single 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 9Single 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 10Single 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’.
A
V
B
T
C
E
D
A
E
B
Question 11Single 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 12Single 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 13Single 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 14Single 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’.
A
P
B
L
C
T
D
X
E
Y
Question 15Single 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 16Single Answer
How many such pairs of letters are there in the word WONDERS, each of which has as many letters between its two letters as there are between them in the English alphabet?
A
One
B
Two
C
Three
D
Four
E
More than four
Question 17Single Answer
If it is possible to make only one meaningful English word from the second, the fifth, the seventh and the eighth letters of the word PHYSICAL, using each letter only once, second letter of that word is your answer. If more than one such word can be formed your answer is M. if no such word can be formed your answer is N.
A
I
B
A
C
L
D
M
E
N
Question 18Single Answer
How many such pairs of letters are there in the word JUSTIFY, each of which have as many letters between them in the word as they have between them in the English alphabet?
A
None
B
One
C
Two
D
Three
E
More than three
Question 19Single Answer
If the alphabets are assigned values as A=3, D=6, G=8, I=2, L=4 and T=5 then what is the sum of values of all the alphabets in the word DIGITAL?
A
26
B
28
C
30
D
32
E
None of these
Question 20Single Answer
How many such pairs of letters are there in the word EDUCATION, 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 21Single Answer
How many such pairs of letters are there in the word MEASURE 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 22Single Answer
How many meaningful English words can be formed with the letters LMAE using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
More than three
Question 23Single Answer
If each consonant in the word EXPLORATION is replaced by previous the alphabet and each vowel replaced by alphabet following it in the English alphabetic series, and then the order of the alphabets thus formed is reversed, which of the following from the right?
A
P
B
Q
C
B
D
K
E
None of these
Question 24Single Answer
If the letters in the word AMONGST are arranged in the English alphabetical order, the position of how many letters will remain unchanged?
A
None
B
One
C
Three
D
Four
E
More than Four
Question 25Single Answer
How many meaningful English words can be formed with the letters ACRS using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
More than three
Question 26Single Answer
How many such pairs of letters there in the word, UNWANTED, each of which has as many letters between its two letters as there are between them in the English alphabets?
A
None
B
One
C
Two
D
Three
E
More than three
Question 27Single Answer
How many meaningful English words can be made with the letters EIND using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
None of these
Question 28Single Answer
How many such pairs of letters are there in the word, ‘TROUBLE’, each of which has as many letters between its two letters as there are between them in the English alphabet?
A
None
B
One
C
Two
D
Three
E
None of these
Question 29Single Answer
How many such pairs of letters there in the word DOUBTS each of which has as many letters between its two letters as there are between them in the English alphabet?
A
None
B
One
C
Two
D
Three
E
None of these
Question 30Single Answer
How many meaningful English words can be made with the letters ESDO using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
None of these
Question 31Single Answer
How many such pairs of letters there in the word, BONDING each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
None of these
Question 32Single Answer
How many such pairs of letters are there in the word CHARGES each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
None of these
Question 33Single Answer
How many meaningful English words can be made with the letters EDSU using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
More than three
Question 34Single Answer
How many meaningful English words can be made with the letters RTOU using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
More than three
Question 35Single Answer
How many such pairs of letters are there in the word ENGULFED each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
More than three
Question 36Single Answer
How many such pairs of letters are there in the word CORPORATE each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
More than three
Question 37Single Answer
If it is possible to make only one meaningful word with the first, second, fifth and sixth letters of the word ‘EDUCATION’, which would be the last letter of the word? If more than one such word can be formed, give X as the answer. If no such word can be formed, give K as your answer.
A
T
B
X
C
A
D
E
E
K
Question 38Single Answer
How many meaningful English words can be made with the letters ‘OEHM’ using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
More than three
Question 39Single Answer
How many such pairs of letters are there in the word CONFIRM each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
More than three
Question 40Single Answer
If JOSEPH is coded as FKOALD, then GEORGE will be coded as
A
CAKNCA
B
CADMNO
C
CAKNIT
D
JAKINS
Question 41Single Answer
How many such pairs of letters are there in the word TAILSPIN each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
More than three
Question 42Single Answer
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 is in the middle of 13th letter from the left and 4th letter from the right ?
A
R
B
I
C
J
D
S
Question 43Single Answer
How many such pairs of letters are there in the word MINORITY each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
More than three
Question 44Single Answer
How many such pairs of letters are there in the word CHARIOT each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
More than three
Question 45Single Answer
If it is possible to make only one meaning word with the first, second, fourth, and the sixth letters of the word ’STARVING’ . Which would be the second letter of the word from the right end? If more than one such word can be formed, give X as the answer. If no such word can be formed, give K as your answer.
A
T
B
S
C
X
D
I
E
K
Question 46Single Answer
How many such pairs of letters are there in the word ELUSIVE each of which has as many letters between them in the word as in the English alphabets?
A
None
B
One
C
Two
D
Three
E
More than three
Question 47Single Answer
If it is possible to make only one meaning word with the first, third, fifth, and the ninth letters of the word ’CURVATURE’ . Which would be the second letter of the word ? If more than one such word can be formed, give X as the answer. If no such word can be formed, give K as your answer.
A
R
B
D
C
X
D
I
E
K
Question 48Single Answer
If in certain code MONKEY is written as ZFLOPN then in the same code how CHARACTER is written ?
A
SFUBIDDBS
B
SFUDBSBID
C
SFUDBSCID
D
SFUDBEBID
Question 49Single Answer
How many meaningful English words can be made with the letters NNEO using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
More than three
Question 50Single Answer
If MADRAS can be written as NBESBT, how can BOMBAY be written in that code ?
A
CPNCBX
B
CPNCBZ
C
CPOCBZ
D
CQOCBZ
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Quantitative Aptitude
Question 51Single 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 52Single Answer
Which of the following numbers is irrational ?
A
√49
B
0.125
C
√2
D
22/7
Question 53Single Answer
356 x 936 – 356 x 836 = ?
A
35600
B
34500
C
9630
D
93600
Question 54Single 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 55Single Answer
What is (3^{4} times 9^{2}) ?
A
36
B
38
C
310
D
96
Question 56Single Answer
If 34X-2 = 729, then find the value of X.
A
4
B
3
C
2
D
5
Question 57Single Answer
Convert 0.6 into fraction ?
A
3/5
B
2/3
C
4/5
Question 58Single 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 59Single 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 60Single Answer
If x*y = x2 + y2 – xy, then value of 9*11 is
A
93
B
103
C
60.5
D
121
Question 61Single Answer
Which is greater ?
A
15/16
B
17/18
C
Equal
D
Cannot compare
Question 62Single Answer
If sum of two numbers is 42 and their product is 437, then find their difference.
A
3
B
4
C
5
D
7
Question 63Single Answer
Write the 44000 in Roman numerals
A
XLI
B
XLVI
C
XLIV
D
XLVIC
Question 64Single Answer
Convert 0.0909… into fraction ?
A
1/11
B
9/11
C
1/9
D
9/10
Question 65Single Answer
What is (98 times 102) ?
A
9996
B
10000
C
10096
D
10196
Question 66Single Answer
Which is smaller ?
A
9/11
B
7/9
C
Equal
D
Cannot compare
Question 67Single Answer
Convert 0.5777… into fraction ?
A
26/45
B
52/90
C
13/22
D
5/9
Question 68Single Answer
Convert 0.81 into fraction ?
A
81/100
B
9/10
C
8/9
D
9/11
Question 69Single Answer
(63)2 – (12)2 =?
A
3528
B
3852
C
3582
D
3825
Question 70Single Answer
Which is greater ?
A
13/17
B
11/14
C
Equal
D
Cannot compare
Question 71Single Answer
16.928 + 24.7582 5.015 =?
A
20
B
24
C
22
D
26
Question 72Single Answer
Convert 0.75 into fraction ?
A
3/4
B
2/3
C
4/5
D
5/8
Question 73Single Answer
Which is greater ?
A
11/13
B
12/15
C
Equal
D
Cannot compare
Question 74Single Answer
Two numbers are co-prime if their HCF is ?
A
0
B
1
C
Same
D
Prime
Question 75Single Answer
Product of all factors of 10 is ?
A
10
B
100
C
1000
D
10000
Question 76Single Answer
How many real numbers exist between 2 and 3 ?
A
1
B
10
C
Infinite
D
None
Question 77Single Answer
Which number is divisible by 11 ?
A
12345
B
1331
C
1234
D
1213
Question 78Single Answer
What is the unit digit of (7^{245}) ?
A
1
B
3
C
7
D
9
Question 79Single Answer
What is (64^{2/3}) ?
A
4
B
8
C
16
D
32
Question 80Single Answer
What is (125^{1/3}) ?
A
3
B
4
C
5
D
6
Question 81Single Answer
Which of the following is composite ?
A
17
B
19
C
21
D
23
Question 82Single Answer
What is √0.0009 ?
A
0.003
B
0.03
C
0.3
D
0.09
Question 83Single Answer
What is √1156 ?
A
32
B
34
C
36
D
38
Question 84Single Answer
What is √2025 ?
A
35
B
40
C
45
D
50
English
Question 85Single Answer
I go to Madurai by —– Vaigai Express
A
a
B
an
C
some
D
the
Question 86Single 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 87Single 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 88Single 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 89Single 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 90Single 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 91Single 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 92Single 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 93Single 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 94Single 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 95Single 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 96Single 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 97Single 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 98Single 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 99Single 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 100Single 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 101Single 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 102Single 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 103Single 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 104Single 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 105Single 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 106Single 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 107Single 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 108Single 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 109Single 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?
Question 110Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
He was in the temper
B
and refused
C
discuss the matter again
D
No error
Question 111Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
A flower makes no garland
B
so we must do a thing together
C
in a unit for a good result
D
No error
Question 112Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
My friend is a software engineer
B
and his wife is doctor
C
so they don’t have enough time for each other
D
No error
Question 113Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
I don’t have much time that
B
I hear you in detail with verbosity
C
tell everything in nutshell
D
No error
Question 114Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
The atmosphere is changing
B
so I have severe pain in my body
C
if you have any painkiller, please give it to me
D
No error
Question 115Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
No one is without fault
B
because no one is God
C
and only God is fault free
D
No error
Question 116Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
Your
B
clock is
C
one hour fast
D
No error
Question 117Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
The lose of jobs
B
is regarded by some as an necessary evil
C
in the fight against infliation
D
No error
Question 118Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
In science, the credit goes to a man
B
who convinces the world
C
not to the man to whom the idea first occurs
D
No error
Question 119Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
It is only after
B
the match is over
C
that people realize how exciting it is
D
No error
Electrical
Question 120Single 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 121Single 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 122Single 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 123Single 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 124Single 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 125Single 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 126Single 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 127Single 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 128Single 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 129Single 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 130Single 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 131Single 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 132Single 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 133Single 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 134Single 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 135Single 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 136Single 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 137Single 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 138Single 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 139Single 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 140Single 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 141Single 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 142Single 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 143Single 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 144Single 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 145Single 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 146Single 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 147Single 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 148Single 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 149Single 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
Question 150Single 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 151Single 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 152Single 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 153Single 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 154Single 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 155Single 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 156Single 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 157Single 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 158Single 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 159Single 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 160Single Answer
Resistance switching is normally resorted in case of
A
Air blast CB
B
Bulk oil CB
C
Minimum oil CB
D
All types of CB
Question 161Single Answer
By transmitting power at high voltage
A
it will give poor voltage regulation
B
it will give better voltage regulation
C
it will not effect voltage regulation
D
None of these
Question 162Single Answer
Which statement about the daily load curve is valid ?
A
The area under the curve gives the average demand
B
The ratio of the area under the curves to the total area of rectangle in which it is contained gives the load factor for the day
C
The peak of the curve gives the installed capacity of the plant
D
The area of the curves divided by the number of hours gives load factor
Question 163Single Answer
High voltage Schring bridge is used to measure
A
large capacitance without additional element
B
small capacitance without additional element
C
medium value capacitance
D
None of these
Question 164Single Answer
Draw - in - system of laying underground cables has the drawback (s) of
A
higher cost
B
reduced current carrying capacity of the cables
C
requirements of much deeper and wider trenches
D
repairs, alterations or additions difficult
E
all of the above except
Question 165Single Answer
Surge impedance of a transmission line is
A
independent of its length
B
dependent on its length
C
independent on its temperature
D
none of the above
Question 166Single Answer
If two synchronous generators connected in parallel loose synchronism, it will lead to
A
stalling of generators
B
wild fluctuations in current
C
wild fluctuations in current and voltage
D
None of these
Question 167Single Answer
A differential relay responds to
A
algebraic difference of two or more similar electrical quantities
B
vector difference of two or more similar electrical quantities
C
algebraic difference between two currents
D
algebraic difference between two voltages
Question 168Single Answer
The conductor carries more current on the surface in comparison to its core. This phenomenon is called the