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Question Bank

IOCL Junior Operator Aviation Exam - English

Duration: 120 · Questions: 100 · Max Marks: 100 · Language: 3

View IOCL Junior Operator 2026 Exam Page

Quantitative Aptitude

1
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:__________ ?
  1. A.51:52
  2. B.52:53
  3. C.51:53
  4. D.52:55
2
Which of the following numbers is irrational ?
  1. A.√49
  2. B.0.125
  3. C.√2
  4. D.22/7
3
356 x 936 – 356 x 836 = ?
  1. A.35600  
  2. B.34500
  3. C.9630
  4. D.93600
4
Arrange in descending order: 5/8, 7/10, 3/4
  1. A.3/4 > 7/10 > 5/8
  2. B.7/10 > 3/4 > 5/8
  3. C.3/4 > 5/8 > 7/10
  4. D.5/8 > 7/10 > 3/4
5
What is (3^{4} times 9^{2}) ?
  1. A.36
  2. B.38
  3. C.310
  4. D.96
     
6
If 34X-2 = 729, then find the value of X.
  1. A.4     
  2. B.3
  3. C.2 
  4. D.5
7
Convert 0.6 into fraction ?
  1. A.3/5
  2. B.2/3
  3. C.4/5
8
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 ?
  1. A.169  
  2. B.36
  3. C.196 
  4. D.Can not say
9
If a and b are positive integers, such that ab = 125, then (a-b)a+b-4 = ?
  1. A.16   
  2. B.25
  3. C.28  
  4. D.30
10
If x*y = x2 + y2 – xy, then value of 9*11 is
  1. A.93     
  2. B.103
  3. C.60.5
  4. D.121
11
Which is greater ?
  1. A.15/16
  2. B.17/18
  3. C.Equal
  4. D.Cannot compare
12
If sum of two numbers is 42 and their product is 437, then find their difference.
  1. A.3 
  2. B.4
  3. C.5    
  4. D.7
13
Write the 44000 in Roman numerals
  1. A.XLI 
  2. B.XLVI
  3. C.XLIV 
  4. D.XLVIC
14
Convert 0.0909… into fraction ?
  1. A.1/11
  2. B.9/11
  3. C.1/9
  4. D.9/10
15
What is (98 times 102) ?
  1. A.9996
  2. B.10000
  3. C.10096
  4. D.10196
16
Which is smaller ?
  1. A.9/11
  2. B.7/9
  3. C.Equal
  4. D.Cannot compare
17
Convert 0.5777… into fraction ?
  1. A.26/45
  2. B.52/90
  3. C.13/22
  4. D.5/9
18
Convert 0.81 into fraction ?
  1. A.81/100
  2. B.9/10
  3. C.8/9
  4. D.9/11
19
(63)2 – (12)2 =?
  1. A.3528 
  2. B.3852
  3. C.3582  
  4. D.3825
20
Which is greater ?
  1. A.13/17
  2. B.11/14
  3. C.Equal
  4. D.Cannot compare
21
16.928 + 24.7582  5.015 =?
  1. A.20   
  2. B.24
  3. C.22
  4. D.26
22
Convert 0.75 into fraction ?
  1. A.3/4
  2. B.2/3
  3. C.4/5
  4. D.5/8
23
Which is greater ?
  1. A.11/13
  2. B.12/15
  3. C.Equal
  4. D.Cannot compare
24
Two numbers are co-prime if their HCF is ?
  1. A.0
  2. B.1
  3. C.Same
  4. D.Prime
25
Product of all factors of 10 is ?
  1. A.
    10
  2. B.100
  3. C.1000
  4. D.10000
26
How many real numbers exist between 2 and 3 ?
  1. A.1
  2. B.10
  3. C.Infinite
  4. D.None

     
27
Which number is divisible by 11 ?
  1. A.12345
  2. B.1331
  3. C.1234
  4. D.1213
28
What is the unit digit of (7^{245}) ?
  1. A.1
  2. B.3
  3. C.7
  4. D.9

     
29
What is (64^{2/3}) ?
  1. A.4
  2. B.8
  3. C.16
  4. D.32
30
What is (125^{1/3}) ?
  1. A.3
  2. B.4
  3. C.5
  4. D.6
     
31
Which of the following is composite ?
  1. A.
    17
  2. B.19
  3. C.21
  4. D.23
32
What is √0.0009 ?
  1. A.0.003
  2. B.0.03
  3. C.0.3
  4. D.0.09
     
33
What is √1156 ?
  1. A.32
  2. B.34
  3. C.36
  4. D.38
34
What is √2025 ?
  1. A.35
  2. B.40
  3. C.45
  4. D.50
35
What is (51^2) ?

  1. A.2601
  2. B.2501
  3. C.2551
  4. D.2651
     
36
7 8 18 57 ?
  1. A.244 
  2. B.174
  3. C.186   
  4. D.none of these
37
Last year my age was a perfect square number. Next year it will be a cubic number. What is my Present age ?
  1. A.25 years 
  2. B.27 years
  3. C.26 years
  4. D.24 years
38
If a + b = 5, a2 + b2 = 13, the value of a – b (where a > b) is
  1. A.2 
  2. B.-1
  3. C.1 
  4. D.-2
39
How many factors does 100 have ?
  1. A.6
  2. B.7
  3. C.8
  4. D.9

Reasoning Abilities

1
‘Gram’ is relatd to ‘Mass’ in the same way as ‘Centimetre’ is related to
  1. A.Area
  2. B.Volume
  3. C.Length
  4. D.Sound
  5. E.Energy
2
'Mustard' is related to 'Seed' in the same way as 'Carrot' is related to
  1. A.Fruit
  2. B.Stem
  3. C.Flower
  4. D.Root
  5. E.None of these
3
Which of the following pairs of words have the same relationship as Fan : Heat?
  1. A.Water        :           Drink
  2. B.Light         :        Night
  3. C.Teach       :      Student
  4. D.Air             :        Breathe
  5. E.Food         :        Hunger
4
'Radish' is related to 'Root', in the same way as 'Brinjal' is related to
  1. A.Fruit
  2. B.Stem
  3. C.Flower
  4. D.Root
  5. E.None of these
5
'Jackal' is related to 'Carnivorous', in the same way as 'Goat' is related to
  1. A.Omnivorous
  2. B.Carnivorous
  3. C.Herbivorous
  4. D.Multivorous
  5. E.None of these
6
Which of the following pairs has similar relationship as Run : Race?
  1. A.Party : Dance
  2. B.Study : Book
  3. C.Lecture : Study
  4. D.Enjoy : Journey
  5. E.None of these
7
Which of the following has same relationship as that of Money : Wealth?
  1. A.Pity : Kindness
  2. B.Cruel : Anger
  3. C.Wise : Education
  4. D.Pride : Humility
  5. E.None of these
8
Which of the following is related to ‘Melody’, in the same way as ‘Delicious’ is related to 'Taste'?
  1. A.Memory
  2. B.Highness
  3. C.Tongue
  4. D.Speak
  5. E.Voice
9
Offhand’ is related to ‘Premeditation’ in the same way as ‘Above board’ is related to
  1. A.Integrity
  2. B.Honesty
  3. C.Guide
  4. D.Competition
  5. E.None of these
10
5 : 7 : : ? : 28
  1. A.20
  2. B.14
  3. C.56
  4. D.26
  5. E.None of these
11
Which one is different form the remaining three?
  1. A.GIJK
  2. B.DFGH
  3. C.CEFG
  4. D.ABCD
  5. E.None of these
12
Three of the following four are alike in certain way and so form a group. Which is one that does not belong to the group?
  1. A.71
  2. B.73
  3. C.77
  4. D.67
  5. E.None of these
13
Unscramble the letters in the given words and find the odd one out.
  1. A.UMRSME
  2. B.EIWNTR
  3. C.PIGRSN
  4. D.LCUOD
  5. E.None of these
14
What should come next in the following number series?
0 2 4 6 2 3 0 2 4 6 4 5 0 2 4 6 6 7 0 2?
  1. A.4
  2. B.2
  3. C.6
  4. D.8
  5. E.5
15
What will be there is the place of question mark in the following series?
E G 3 5, I K 9 9, M O 1 9 5, Q S 3 2 3?
  1. A.UW483
  2. B.ZA26
  3. C.TU420
  4. D.ST380
  5. E.None of these
16
What should come next in the following letter series?
A Z A B Y A B C X A B C D W A B C D E V A B C D E
  1. A.U
  2. B.T
  3. C.A
  4. D.G
  5. E.None of these
17
What should come next in the following letter series?
H G F E D C B A G F E D C B A G F E D C B
  1. A.E
  2. B.G
  3. C.F
  4. D.B
  5. E.None of these
18
What should come next in the following letter series?
Z X V T R P N L J Y W U S Q O
  1. A.M
  2. B.K
  3. C.H
  4. D.J
  5. E.None of these
19
Which of the following should come next in the given sequence of numbers?
24 3 2 4 3 1 2 4 3 1 2 2 4 3 1 2 3 1 2 3 2 4 3 1 2 3
  1. A.2
  2. B.3
  3. C.4
  4. D.5
  5. E.None of these
20
What should come next in the following letter series?
P P O PO N PO N M P O N M L P O N M L
  1. A.P
  2. B.K
  3. C.J
  4. D.I
  5. E.None of these
21
What should come next in the following number series?
9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 9 8 7 6 5 4 3 2 2 3 4 5 6 7 8
  1. A.8
  2. B.1
  3. C.9
  4. D.2
  5. E.None of these
22
What should come next in the following number series?
3 4 4 3 4 4 5 3 4 4 5 6 3 4 4 5 6 7 3 4 4 5 6
  1. A.4
  2. B.5
  3. C.6
  4. D.7
  5. E.None of these
23
What should come next in the following letter series?
A A B A B C A B C D A B C D E A B C D E F
  1. A.A
  2. B.G
  3. C.H
  4. D.B
  5. E.None of these
24
What should come in the place of the question mark (?) in the following series of combination of alpha-numerals and symbols?Y 9B*W*D7*U5F?
  1. A.S 3 H *
  2. B.T#H*
  3. C.T*#H
  4. D.S*H5
  5. E.SH*1
25
What should come next in the following number series?9 7 5 3 1 1 8 6 4 2 2 9 7 5 3 1 8 6 4 2 2 9 7 5 3 1 8 6 4 2 9 7 5 3 1 8 6 4 2 9 7 5
  1. A.1
  2. B.8
  3. C.3
  4. D.5
  5. E.None of these
26
What should come next in the place of question mark(?) in the following letter sequence?AZB, CYD, EXF,?,IVJ, KUL
  1. A.FYH
  2. B.GWG
  3. C.HWH
  4. D.GUF
  5. E.None of these
27
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.215
  2. B.143
  3. C.247
  4. D.91
  5. E.65
28
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.78
  2. B.48
  3. C.72
  4. D.54
  5. E.42
29
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.45
  2. B.51
  3. C.39
  4. D.93
  5. E.85
30
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.39
  2. B.27
  3. C.48
  4. D.42
  5. E.24
31
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.187
  2. B.323
  3. C.119
  4. D.221
  5. E.289
32
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.35
  2. B.80
  3. C.45
  4. D.60
  5. E.75
33
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.31
  2. B.39
  3. C.47
  4. D.41
  5. E.43
34
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.27
  2. B.64
  3. C.125
  4. D.216
  5. E.384
35
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.25
  2. B.64
  3. C.189
  4. D.225
  5. E.121
36
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.23
  2. B.29
  3. C.37
  4. D.39
  5. E.31
37
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.115
  2. B.145
  3. C.95
  4. D.155
  5. E.75
38
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.126
  2. B.217
  3. C.345
  4. D.513
  5. E.730
39
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.144
  2. B.169
  3. C.256
  4. D.288
  5. E.324
40
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. A.143
  2. B.168
  3. C.224
  4. D.195
  5. E.257

English Language

1
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.
  1. A.He was in the temper
  2. B.and refused
  3. C.discuss the matter again
  4. D.No error
2
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.
  1. A.A flower makes no garland
  2. B.so we must do a thing together
  3. C.in a unit for a good result
  4. D.No error
3
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.
  1. A.My friend is a software engineer
  2. B.and his wife is doctor
  3. C.so they don’t have enough time for each other
  4. D.No error
4
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.
  1. A.I don’t have much time that
  2. B.I hear you in detail with verbosity
  3. C.tell everything in nutshell
  4. D.No error
5
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.
  1. A.The atmosphere is changing
  2. B.so I have severe pain in my body
  3. C.if you have any painkiller, please give it to me
  4. D.No error
6
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.
  1. A.No one is without fault
  2. B.because no one is God
  3. C.and only God is fault free
  4. D.No error
7
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.
  1. A.Your
  2. B.clock is
  3. C.one hour fast
  4. D.No error
8
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.
  1. A.The lose of jobs
  2. B.is regarded by some as an necessary evil
  3. C.in the fight against infliation
  4. D.No error
9
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.
  1. A.In science, the credit goes to a man
  2. B.who convinces the world
  3. C.not to the man to whom the idea first occurs
  4. D.No error
10
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.
  1. A.It is only after
  2. B.the match is over
  3. C.that people realize how exciting it is
  4. D.No error
11
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.
  1. A.Off the two
  2. B.sisters, she
  3. C.is better
  4. D.No error
12
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.
  1. A.A interesting book
  2. B.‘A Tale of two cities’
  3. C.was written by Alexander Dumas
  4. D.No error
13
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.
  1. A.I shall never
  2. B.forget a good
  3. C.deed you did to me, when I was in crisis
  4. D.No error
14
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.
  1. A.Wisdom of Vikramaditya
  2. B.solved many riddles
  3. C.that people brought to him for solution
  4. D.No error
15
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.
  1. A.News you broke to his wife
  2. B.made her nervous
  3. C.and she broke down
  4. D.No error
16
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.
  1. A.I have a work
  2. B.to do and
  3. C.so I will reach late
  4. D.No error
17
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.
  1. A.I saw portion
  2. B.of the manuscript
  3. C.on birds
  4. D.No error
18
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.
  1. A.Talent without experience is waste
  2. B.so one must attain some practical knowledge and
  3. C.it is only practical knowledge through which one can be an expert
  4. D.No error
19
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.
  1. A.The Geeta, the Bible and the Quran all show us
  2. B.the true path of humanity
  3. C.Ramayana also can be included in this group
  4. D.No error
20
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.
  1. A.Gandhiji was born on 2nd October 1869
  2. B.He devoted two thirds of his life
  3. C.for Indian freedom movement
  4. D.No error