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Objective Questions

Latest MOIL Mine Mate Exam Question (Objective Questions), MCQ in English

Subjects : General Awareness, Reasoning, Electrical

Question Bank MOIL Mine Mate Exam (Electrical) - English
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General Awareness

Question 1Single 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 2Single 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 3Single 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 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
  1. A
    1 and 3
  2. B
    2 and 3
  3. C
    1 and 2
  4. D
    1,2 and 3
Question 5Single Answer
Which of the following programmes aims at the promotion of savings among rural women
  1. A
    Rashtriya Mahila Kosh
  2. B
    Indira Mahila Yojna
  3. C
    Jawahar Rozgar Yojna
  4. D
    Mahila Samridhi Yojna
Question 6Single Answer
Where was the 8th International Solar Alliance (ISA) Assembly held in 2025?
  1. A
    Geneva, Switzerland
  2. B
    New Delhi, India
  3. C
    Paris, France
  4. D
    Abu Dhabi, UAE
Question 7Single Answer
What was a major outcome of the DRDO's SAMANVAY 2025 event in Bengaluru?
  1. A
    Launch of a new satellite
  2. B
    Transfer of 12 Licensing Agreements for Transfer of Technology
  3. C
    Signing of international arms deal
  4. D
    Development of AI drones
Question 8Single Answer
What was the focus of the first India-Sri Lanka Joint Working Group (JWG) meeting on Agriculture held in October 2025?
  1. A
    Farm mechanization and climate-resilient agriculture
  2. B
    Trade tariffs
  3. C
    Water disputes
  4. D
    Export quotas
Question 9Single Answer
Which company delivered India’s first 220kV Mobile Gas Insulated Switchgear (GIS) System in October 2025?
  1. A
    Siemens
  2. B
    ABB
  3. C
    GE
  4. D
    Toshiba
Question 10Single Answer
What is India’s total installed power capacity as of September 30, 2025?
  1. A
    500.89 GW
  2. B
    450 GW
  3. C
    400 GW
  4. D
    550 GW

Reasoning

Question 11Single 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?
  1. A
    Two
  2. B
    Three
  3. C
    Five
  4. D
    Four
  5. E
    None of these
Question 12Single 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
  1. A
    True
  2. B
    False
  3. C
    Uncertain
  4. D
    None
Question 13Single 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.
  1. A
    A
  2. B
    E
  3. C
    T
  4. D
    X
  5. E
    Y
Question 14Single 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?
  1. A
    None            
  2. B
    One         
  3. C
    Two       
  4. D
    Three        
  5. E
    More than three
Question 15Single 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?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    More than three
Question 16Single Answer
How many meaningful words can be made from the letters ‘LMEA’ using each letter only once in each word?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    More than three
Question 17Single 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.
  1. A
    T
  2. B
    L
  3. C
    E
  4. D
    Y
  5. E
    X
Question 18Single Answer
If the letters of the word HANDOVER are arranged alphabetically from left to right how many letters will remain at the same position?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    More than three
Question 19Single 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?
  1. A
    None
  2. B
    One
  3. C
    Two
  4. D
    Three
  5. E
    More than three
Question 20Single 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’.
  1. A
    V
  2. B
    T
  3. C
    E
  4. D
    A
  5. E
    B

Electrical

Question 21Single 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
  1. A
    0.8 Ω
  2. B
    1.4 Ω
  3. C
    2 Ω
  4. D
    2.8 Ω
Question 22Single 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?
  1. A
    7.0 × 1012 m-3
  2. B
    7.0 × 10-12 m-3
  3. C
    7.0 × 10-12 m3
  4. D
    7.0 × 1012 m3
Question 23Single 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?
  1. A
    9.2 × 105/m3
  2. B
    2.77 × 103/m3
  3. C
    2.43 × 1019/m3
  4. D
    8.9 × 1012/m3
Question 24Single Answer
Heat conduction in a semiconductor takes place
  1. A
    By the mobility of the carriers
  2. B
    Due to energy gap between conduction band and valency band
  3. C
    By the holes and thermal vibrations of atoms
  4. D
    By the electrons and thermal vibrations of atoms
Question 25Single 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
  1. A
    Parallel polarized
  2. B
    Perpendicularly polarized
  3. C
    Normally polarized
  4. D
    None of the above
Question 26Single Answer
An electrical breakdown of a p-n junction occurs if
  1. A
    Forward voltage increases up to the rating
  2. B
    Reverse voltage increases beyond the rating
  3. C
    Forward voltage decreases below the rating
  4. D
    Reverse voltage decreases below the rating
Question 27Single Answer
The chief deterrent to the widespread application of superconducting materials is
  1. A
    Very difficult to form, machine or case
  2. B
    The difficult in attaining and maintaining extremely low temperature
  3. C
    The poor strength-to-weight ratio
  4. D
    The lower oxidation rate at elevated temperatures
Question 28Single Answer
Which one of the following properties is not observed in the carbon nanotubes ?
  1. A
    High stiffness and strengths
  2. B
    Low densities
  3. C
    Unusual electrical property
  4. D
    Non-ductile
Question 29Single Answer
The evidence for the importance of electron-phonon interaction in super-conductors comes from
  1. A
    Meissner effect
  2. B
    Josephson effect
  3. C
    Isotope effect
  4. D
    x quantization experiments
Question 30Single Answer
Which one of the following materials is used for cable insulation ?
  1. A
    Phenol formaldehyde
  2. B
    Polytetrafluoroethylene
  3. C
    Polyvinyl chloride
  4. D
    Acrylonitrile butadiene styrene
Question 31Single Answer
For high speed reading and storing of information in a computer, the material used is
  1. A
    Ferrite
  2. B
    Piezoelectric
  3. C
    Pyroelectric
  4. D
    Ferromagnetic above 768°C
Question 32Single Answer
The temperature above which an anti-ferromagnetic material becomes paramagnetic is called
  1. A
    Peak temperature
  2. B
    Neel temperatur
  3. C
    Critical temperature
  4. D
    Weiss temperature
Question 33Single Answer
Which effect is the converse of Peltier effect ?
  1. A
    Seeback effect
  2. B
    Thomson effect
  3. C
    Hall effect
  4. D
    Joule effect
Question 34Single Answer
Magnetic materials which may be readily magnetized in either direction are
  1. A
    Soft magnetic materials
  2. B
    Hard magnetic materials
  3. C
    High eddy current loss materials
  4. D
    High hysteresis loss materials
Question 35Single 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?
  1. A
    Both 1 and 2
  2. B
    Neither 1 nor 2
  3. C
    1 only
  4. D
    2 only
Question 36Single Answer
The impact ionization phenomenon in semiconductor may be viewed as the reverse process of
  1. A
    Radiative recombination
  2. B
    Auger recombination
  3. C
    Surface recombination
  4. D
    Shockley-Read-Hall recombination
Question 37Single Answer
Refractive index of a slice glass can be reduced by doping it with tiny amount of
  1. A
    GeO2
  2. B
    B2O3
  3. C
    P2O5x
  4. D
    Al2O3
Question 38Single Answer
If a diameter of a copper wire is increased by two times keeping its terminal voltage same, then the drift velocity will
  1. A
    Become twice
  2. B
    Become half
  3. C
    ecome four times
  4. D
    Remain unchanged
Question 39Single Answer
In an induction type energy meter, the steady speed attained by the rotating disc is
1.Proportional to the deflecting torque.
2.Proportional to the resistance of the path of eddy currents.
3.Inversely proportional to the effective readings of disc from its axis.
4.Inversely proportional to the square of brake magnetic flux. 
Which of the above are correct?
  1. A
    1, 2 and 3 only
  2. B
    1, 2 and 4 only
  3. C
    2, 3 and 4 only
  4. D
    1, 2, 3 and 4
Question 40Single Answer
If ‘KCLFTSB’ stands for ‘best of  luck’ and ‘SHSWDG’ stands for ‘good wishes’, which of the following indicates ‘ace the exam’?
  1. A
    MCHTX
  2. B
    MXHTC
  3. C
    XMHCT
  4. D
    XMHTC
Question 41Single Answer
Consider  the following statements associated with the basic electrostatic properties of ideal conductors:
1.The resultant field inside is zero.
2.The net charge density in the interior is zero.
3.Any net charges reside on the surface.
4.The surface is always equipotential.
5.The field just outside is zero. 
Which of the above statements are correct?
  1. A
    1, 2, 3 and 4
  2. B
    3, 4 and 5 only
  3. C
    1, 2 and 3 only
  4. D
    2 and 3 only
Question 42Single Answer
A semiconductor device made out of a material having very high temperature coefficient of resistance is
  1. A
    Transistor
  2. B
    Varistor
  3. C
    Thyristor
  4. D
    Thermistor
Question 43Single Answer
The electrical conductivity of a semiconductor increases with increase in temperature because
  1. A
    The carrier concentration increases
  2. B
    The mobility of carrier increases
  3. C
    Both carrier concentration and mobility increases
  4. D
    The band gap decreases
Question 44Single Answer
Which of the following are associated with soft superconductors?
1.Silsbee’s rule
2.Meissner effect
3.Faraday rotation
4.Curie-Weiss law
  1. A
    2, 3 and 4
  2. B
    1 and 3 only
  3. C
    1 and 2 only
  4. D
    2 and 3 only
Question 45Single Answer
In a two-channel oscilloscope operating in x-y mode, two in-phase 50 Hz sinusoidal waveforms of equal amplitude are fed to the two channels. What will be the resultant pattern on the screen?
  1. A
    An ellipse
  2. B
    A parabola
  3. C
    Straight line inclined at 45 with respect to x-axis
  4. D
    A circle
Question 46Single Answer
Materials, whose resistivity at very low temperature plunges from a finite value to zero and remains there upon further cooling, are known as
  1. A
    Ferromagnetic materials
  2. B
    High-energy hard magnetic materials
  3. C
    Superconductors
  4. D
    Ferromagnetic materials
Question 47Single Answer
In a superconductor, is the temperature is decreased below its critical temperature, the value of critical magnetic field will
  1. A
    Increase
  2. B
    Decrease
  3. C
    Not change
  4. D
    Increase or decrease depending on the superconductor material
Question 48Single Answer
The imaginary part of dielectric constant determines
  1. A
    Component of current which is in phase with the applied field
  2. B
    Component of energy absorbed per m3
  3. C
    Amount of applied field
  4. D
    Component of voltage which is in phase with the applied field
Question 49Single Answer
Direction: Each of the items consists of two statements, one labeled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answers to these items using the codes given below
  1. A
    Statement (I):Hard magnetic materials are used for making permanent magnets.
    Statement (II):
    Hard magnetic materials have relatively small and narrow hysteresis loop.
  2. B
    Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
  3. C
    Both Statement (I) and Statement (II) are individually true and Statement (II) is NOT the correct explanation of Statement (I)
  4. D
    Statement (I) is true but Statement (II) is false
  5. E
    Statement (I) is false but Statement (II) is true 
Question 50Single Answer
In 8085A microprocessor, the operation performed by the instruction LHLD 2100 H is                                    
  1. A
    (H) ← 21 H, (L) ←00 
  2. B
    (H) ← M (2100 H), (L) ←M(2101H)
  3. C
    (H) ← M (2100 H), (L) ←M(2100H)
  4. D
    (H) ← 00H, (L) ←21H                                                 
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