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Objective Questions

Latest IOCL JEA Exam Question (Objective Questions), MCQ in English

Subjects : Numerical Ability, General Awareness, Electrical

Question Bank IOCL JEA Exam (Electrical) - English
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Numerical Ability

Question 1Single 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:__________ ?
  1. A
    51:52
  2. B
    52:53
  3. C
    51:53
  4. D
    52:55
Question 2Single Answer
Which of the following numbers is irrational ?
  1. A
    √49
  2. B
    0.125
  3. C
    √2
  4. D
    22/7
Question 3Single Answer
356 x 936 – 356 x 836 = ?
  1. A
    35600  
  2. B
    34500
  3. C
    9630
  4. D
    93600
Question 4Single Answer
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
Question 5Single Answer
What is (3^{4} times 9^{2}) ?
  1. A
    36
  2. B
    38
  3. C
    310
  4. D
    96
     
Question 6Single Answer
If 34X-2 = 729, then find the value of X.
  1. A
    4     
  2. B
    3
  3. C
    2 
  4. D
    5
Question 7Single Answer
Convert 0.6 into fraction ?
  1. A
    3/5
  2. B
    2/3
  3. C
    4/5
Question 8Single Answer
Passage :
Direction : Each of the questions below consists of a question and two statements numbered (I) and (II) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer  :
How many employees of bank ‘X’ opted for VRS ?
(I) 18% of the 950 officer cadre employees and 6% of the 1100 of all other cadre employees opted for VRS.
(II) 28% of the employees in the age group of 51 to 56 and 17% of the employees in all other age groups opted for VRS.
  1. A
    Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
  2. B
    Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
  3. C
    BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
  4. D
    EACH statement ALONE is sufficient
Question 9Single Answer
Passage :
Direction : Each of the questions below consists of a question and two statements numbered (I) and (II) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer  :
The area of a playground is 1600 square meters. What is its perimeter ?
(I) It is a perfect square playground
(II) It costs Rs.3200 to put a fence around the playground at the rate of Rs.20 per meter.
  1. A
    Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
  2. B
    Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
  3. C
    BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
  4. D
    EACH statement ALONE is sufficient
Question 10Single Answer
Passage :
Direction : Each of the questions below consists of a question and two statements numbered (I) and (II) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer  :
What is the value of m – n ÷ 37 ?
(I) m is the largest possible six-digit number and n is the smallest possible six-digit number.
(II) The difference between m and n is known.
  1. A
    Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
  2. B
    Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
  3. C
    BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
  4. D
    EACH statement ALONE is sufficient
Question 11Single Answer
Passage :
Direction : Each of the questions below consists of a question and two statements numbered (I) and (II) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer  :
What is the value of x  ?
(I) If 10 is added to x, the result is 34.
(II) If x is multiplied by y, the result is 38.
  1. A
    Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
  2. B
    Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
  3. C
    BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
  4. D
    EACH statement ALONE is sufficient
Question 12Single Answer
Passage :
Direction : Each of the questions below consists of a question and two statements numbered (I) and (II) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer  :
What was the total compound interest on a sum after three years  ?
(I) The interest after one year was Rs. 100 and the sum after was Rs.1000.
(II) The difference between simple and compound interest on a sum of Rs.1000 at the end of two years was Rs.10.
  1. A
    Statement (I) ALONE is sufficient, but statement (II) alone is not sufficient
  2. B
    Statement (II) ALONE is sufficient, but statement (I) alone is not sufficient
  3. C
    BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
  4. D
    EACH statement ALONE is sufficient
Question 13Single Answer
Passage :
Each of the questions below consists of a question and two statements numbered (1) and (2) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer.
Among Japanese Yen, Australian Dollar, Hong Kong Dollar and Singapore Dollar, which currency has the lowest value in terms of Indian rupees ?
(1) One rupee is equal to 2.56 Japanese Yen, 0.338 Australian Dollar, and 0.465 Hong Kong Dollar.
(2) Value of Australian Dollar is equal to Singapore Dollar.
  1. A
    Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
  2. B
    Statement (2) ALONE is sufficient, but statement (I) alone is not sufficient
  3. C
    BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
  4. D
    Statements (1) and (2) TOGETHER are NOT sufficient
Question 14Single Answer
Passage :
Each of the questions below consists of a question and two statements numbered (1) and (2) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer.
What is the value of a two-digit number ? 
(1) The sum of the two digits is 4.
(2) The difference between the two digits is 2.
  1. A
    Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
  2. B
    Statement (2) ALONE is sufficient, but statement (I) alone is not sufficient
  3. C
    BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
  4. D
    Statements (1) and (2) TOGETHER are NOT sufficient
Question 15Single Answer
Passage :
Each of the questions below consists of a question and two statements numbered (1) and (2) given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer.
What was the population of State ‘A’ in 1999 ?
(1) Population of the State increases every year by 20% and its population in 1997 was 1,20,000.
(2) Population of State A in 1997 was twice that of State B in the same year.
  1. A
    Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
  2. B
    Statement (2) ALONE is sufficient, but statement (I) alone is not sufficient
  3. C
    BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
  4. D
    Statements (1) and (2) TOGETHER are NOT sufficient

General Awareness

Question 16Single Answer
Yojna a weekly journal
  1. A
    Ministry of Finance        
  2. B
    Ministry of Information and Broadcastin
  3. C
    Ministry of Rural Development
  4. D
    Planning Commission
Question 17Single Answer
Kurukshetra a journal on rural development is published by
  1. A
    Ministry of Finance 
  2. B
    Ministry of Information and Broadcastin
  3. C
    Ministry of Rural Development
  4. D
    Planning Commission
Question 18Single Answer
Devaluation of a currency means
  1. A
    Fixing the value of the currency in conjuction with the movement in the value of a basket of predetermined currencies
  2. B
    Reduction in the value of a currency vis-à-vis major internationally traded currencies
  3. C
    Fixing the value of currency in multilateral consultaion with the IMF the World Bank and major trading partners
  4. D
    Permitting the currency to seek its worth in the international market
Question 19Single Answer

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

  1. A
    Malik Muhammad Joyce
  2. B
    Raskhan
  3. C
    Rich Khusrow
  4. D
    Rich Hasan
Question 20Single Answer
When was the Constituent Assembly of India formed?
  1. A
    1946
  2. B
    1947
  3. C
    1948
  4. D
    1950
Question 21Single Answer
Who is known as the "Father of the Indian Renaissance" ?
  1. A
    Raja Ram Mohan Roy
  2. B
    Swami Vivekananda
  3. C
    Rabindranath Tagore
  4. D
    Mahatma Gandhi
Question 22Single Answer
Who is known as the "Missile Man of India"?
  1. A
    Dr. Homi J. Bhabha
  2. B
    Dr. Vikram Sarabhai
  3. C
    Dr. APJ Abdul Kalam
  4. D
    Dr. Satish Dhawan
Question 23Single Answer
Which country holds the BRICS Chairmanship in 2026?
  1. A
    Brazil
  2. B
    Russia
  3. C
    China
  4. D
    India
Question 24Single Answer
What is the theme of India’s BRICS Chairmanship 2026?
  1. A
    Inclusive Growth for All
  2. B
    Sustainable Global Economy
  3. C
    One Earth One Future
  4. D
    Building for Resilience, Innovation, Cooperation and Sustainability
Question 25Single Answer
Where was the BRICS Foreign Ministers' Meeting held in May 2026?
  1. A
    Mumbai
  2. B
    Hyderabad
  3. C
    Bengaluru
  4. D
    New Delhi

Electrical

Question 26Single Answer
When a very small amount of higher conducting metal is added to a conductor, its conductivity will 
  1. A
    increase
  2. B
     decrease
  3. C
    remain the same 
  4. D
    increase or decrease depending on the impurity
Question 27Single 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
  1. A
    a conductor
  2. B
    an insulator
  3. C
    a semiconductor 
  4. D
    a superconductor
Question 28Single Answer
The temperature coefficient of resistance of a doped semiconductor is
  1. A
    always positive
  2. B
    always negative
  3. C
    zero 
  4. D
    positive or negative depending upon the level of doping 
Question 29Single Answer
In the slice processing of an integrated circuit
  1. A
    components are formed in the areas where silicon dioxide remains
  2. B
    components are formed in the areas where silicon dioxide has been removed
  3. C
    the diffusing elements diffuse through silicon dioxide 
  4. D
    only on diffusion process is used 
Question 30Single 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?
  1. A
    1  and 2 only 
  2. B
    1 and 3 only
  3. C
    1, 2 and 3         
  4. D
    2 and 3
Question 31Single 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
  1. A
    3.3
  2. B
    6.6
  3. C
    36.6
  4. D
    93.3
Question 32Single 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?
  1. A
    2  and 3 
  2. B
    2 and 4
  3. C
    1 and 4 
  4. D
    1 and 3 
Question 33Single 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
  1. A
    0.425 mH          
  2. B
    0.628 mH
  3. C
    0.751 mH 
  4. D
    0.904 mH
Question 34Single 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
  1. A
    0.5 H 
  2. B
    1 H
  3. C
    2 H       
  4. D
    4 H 
Question 35Single 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
  1. A
    100 H 
  2. B
    10 H
  3. C
    0.1 H 
  4. D
    0.01 H 
Question 36Single Answer
A semiconductor differs from a conductor in that it has
  1. A
    Only one path for the free electrons in the valence band
  2. B
    Only one path for holes in the conduction band
  3. 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 
  4. 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 37Single Answer
Which of the following circuits is used for converting a sine wave into a square wave?
  1. A
    Monostablemultivibrator
  2. B
    Bistablemultivibrator
  3. C
    Schmitt trigger circuit 
  4. D
    Darlington complementary pair
Question 38Single Answer
Which of the following elements of electrical engineering cannot be analyzed using Ohm’s law ?
  1. A
    Capacitors
  2. B
    Inductors
  3. C
    Transistors
  4. D
    Resistance
Question 39Single 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?
  1. A
    1  and 2 only 
  2. B
    1 and 3 only
  3. C
    2 and 3 only 
  4. D
    1, 2 and 3 
Question 40Single Answer
Three identical amplifiers each having a voltage gain of 50 are cascaded. The open loop voltage gain of the combined amplifier is
  1. A
    71 dB 
  2. B
    82 dB 
  3. C
    91 dB 
  4. D
    102 dB 
Question 41Single 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? 
  1. A
    1 only 
  2. B
    2 only 
  3. C
    Both 1 and 2 
  4. D
    Neither 1 nor 2 
Question 42Single Answer
If a carrier of 100% modulated AM is suppressed before transmission, the power saving is nearly
  1. A
    50% 
  2. B
    67%
  3. C
    100% 
  4. D
    125%
Question 43Single 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
  1. A
    AM 
  2. B
    PM
  3. C
    FM       
  4. D
    Delta Modulation
Question 44Single Answer
The four basic elements in a PLL are loop filter, loop amplifier, VCO and
  1. A
    Up converter
  2. B
    Down converter
  3. C
    Phase detector
  4. D
    Frequency multiplier
Question 45Single 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?
  1. A
    0.6 kHz 
  2. B
    3.6 kHz
  3. C
    12.4 kHz 
  4. D
    14.4 kHz
Question 46Single Answer
If a square matrix of order 100 has exactly 15 distinct eigenvalues, then the degree of the minimum polynomial is 
  1. A
    At least 15 
  2. B
    At most 15 
  3. C
    Always 15 
  4. D
    Exactly 100
Question 47Single Answer
For high speed reading and storing of information in a computer, the core shall be of 
  1. A
    Ferrite 
  2. B
    Piezoelectric 
  3. C
    Pyroelectric 
  4. D
    Ferromagnetic above 768°C
Question 48Single Answer
Soft magnetic materials should have 
  1. A
    Large saturation magnetization and large permeability 
  2. B
    Low saturation magnetization and large permeability 
  3. C
    Large saturation magnetization and low permeability 
  4. D
    Low saturation magnetization and low permeability 
Question 49Single Answer
Orbital magnetic moment of an electron, in an atom, is of the order of 
  1. A
    0.1 Bohr magneton 
  2. B
    1.0 Bohr magneton 
  3. C
    10 Bohr magneton 
  4. D
    100 Bohr magneton
Question 50Single Answer
When the temperature of a ferromagnetic material exceeds the Curie temperature, it behaves similar to a 
  1. A
    Diamagnetic material 
  2. B
    Ferrimagnetic material 
  3. C
    Paramagnetic material 
  4. D
     Antiferromagnetic material
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