Download AppGovt. JobsFree G.K. & Current AffairsScholarshipBlog
Free PracticeContact
📚 Exam by Category
▾
Objective Questions

Latest NPCIL Stipendiary Trainee Instrument Mechanic Exam Question (Objective Questions), MCQ in English

Subjects : Mathematics, Science, General Awareness

Question Bank NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam - English
Back to Exam

Mathematics

Question 1Single Answer
The elements of the set {x : x is an integer, x2 : 4} can be represent as .....Z..... . Here, Z refers to
  1. A
    {–2, 2} 
  2. B
    {–1, 0, 1}
  3. C
    {–2, –1, 0, 1, 2}
  4. D
    {0, 1, 2}
Question 2Single Answer
 
  1. A
  2. B
  3. C
  4. D
    None of these
Question 3Single Answer
If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as
  1. A
    {2}
  2. B
    {1, 2}  
  3. C
    {1, 2, 22, ....., 2p – 1}
  4. D
    {1, 2, 22, 23,.... 2p – 1, (2p – 1)}
Question 4Single Answer
The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is
  1. A
    {1, 2, 3, 4, 5}
  2. B
    {1, 2, 3, 4, 5, 6}  
  3. C
    {2, 4, 6}
  4. D
    {1, 3, 5}
Question 5Single Answer
If A B and A B, then
  1. A
    A is called a proper subset of B
  2. B
    A is called a super set of B
  3. C
    A is not a subset of B 
  4. D
    B is a subset of A
Question 6Single Answer
The number of non-empty subsets of the set{1, 2, 3, 4} is
  1. A
    15
  2. B
    14
  3. C
    16
  4. D
    17
Question 7Single Answer
The number of elements of the power set of a set containing m elements is
  1. A
    2m – 1
  2. B
    m 
  3. C
    m2
  4. D
    2m
Question 8Single Answer
If A = {x : x = n2, n = 1, 2, 3}, then number of proper subsets is
  1. A
    3
  2. B
    8
  3. C
    7
  4. D
    None of these
Question 9Single Answer
If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is
  1. A
    16
  2. B
    15  
  3. C
    4 
  4. D
    None of these 
Question 10Single Answer
Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then
  1. A
    A is always a subset of the complement of B
  2. B
    B is always a subset of A  
  3. C
    A and B are always disjoint
  4. D
    A and the complement of B are always non-disjoint  
Question 11Single Answer
Which of the following is/are empty set? 
A = {x : x2 + x + 1 = 0 and x Î Z}   B = {x : x is a prime number and 19 < x < 23}
  1. A
    A
  2. B
    B  
  3. C
    Both A and B
  4. D
    None of the above 
Question 12Single Answer
The set {x : x4 = 1 and x R} is .....X.... set. Here, X refers to
  1. A
    empty
  2. B
    finite
  3. C
    infinite
  4. D
    singleton 
Question 13Single Answer
The universal set for the sets   
A = {x : x2 – 5x + 6 = 0} and   
B = {x : x2 – 3x + 2 = 0} having least number of elements is
  1. A
    {1, 2}
  2. B
    {1, 3}
  3. C
    {1, 2, 3}
  4. D
    {0, 1, 2, 3}
Question 14Single Answer
If A = {1, 2, 3}, B = {x € R : x2 – 2x + 1 = 0}, 
C = {1, 2, 2, 3} and 
D = {x € R : x3 – 6x2 + 11x – 6 = 0}, then the equal sets are
  1. A
    A and B
  2. B
    A and C  
  3. C
    A, B and C 
  4. D
    A, C and D
Question 15Single Answer
If A = (–3, 5) and  B = [–7, 9], then
  1. A
    A = B
  2. B
    A B 
  3. C
    B A
  4. D
    None of these 
Question 16Single Answer
Two finite sets have m and n elements, respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The value of m and n respectively are
  1. A
    7, 6
  2. B
    5, 1
  3. C
    6, 3
  4. D
    8, 7
Question 17Single Answer
Combine terms: 12a + 26b  - 4b – 16a .
  1. A
    4a + 22b
  2. B
    -28a + 30b
  3. C
    -4a + 22b
  4. D
    28a + 30b
Question 18Single Answer
The average of first 50 natural numbers is ………… .
  1. A
    25.30
  2. B
    25.5
  3. C
    25.00
  4. D
    12.25
Question 19Single Answer
60 Times of 8 Equals to
  1. A
    480
  2. B
    300
  3. C
    250
  4. D
    400
Question 20Single Answer
Consider the sets
A = {x : x is a real number and x2 + 1 = 0}
B = {x : x is a real number and x2 – 16 = 0}
C = {x : x is a real number and x2 = x + 2}
Which of the following is are null set ?
  1. A
    A
  2. B
    A and B
  3. C
    A and C
  4. D
    A, B and C

Science

Question 21Single Answer
Temperature can be expressed as derived quantity in terms of
  1. A
    length and mass
  2. B
    mass and time
  3. C
    length, mass and time
  4. D
    None of these
Question 22Single Answer
Electron volt is a unit of
  1. A
    potential difference
  2. B
    charge
  3. C
    energy
  4. D
    capacity
Question 23Single Answer
Dimensions of impulse are
  1. A
    [MLT –1]
  2. B
    [MLT²]
  3. C
    [MT–2]
  4. D
    [ML–1T–3]
Question 24Single Answer
Potential is measured in
  1. A
    joule/coulomb
  2. B
    watt/coulomb
  3. C
    newton–second
  4. D
    None of these
Question 25Single Answer
One Nanometer is equal to
  1. A
    10–9m
  2. B
    10–6m
  3. C
    10–10m
  4. D
    10–3m
Question 26Single Answer
Maxwell is the unit of
  1. A
    magnetic susceptibility
  2. B
    intensity of Magnetisation
  3. C
    magnetic Flux
  4. D
    magnetic Permeability
Question 27Single Answer
Which of the following is derived physical quantity ?
  1. A
    Mass
  2. B
    Velocity
  3. C
    Length
  4. D
    Time
Question 28Single Answer
What are the units of magnetic permeability ?
  1. A
    Wb A–1 m–1
  2. B
    Wb–1 Am
  3. C
    Wb A m–1
  4. D
    Wb A–1 m
Question 29Single Answer
Which of the following is not a synthetic fibre:
  1. A
    Anygora
  2. B
    Rayon
  3. C
    Nylon
  4. D
    Polyster
Question 30Single Answer
Which one of the following is not contained in Portland cement ?
  1. A
    Ca3Al2O6
  2. B
    Ca3SiO5
  3. C
    Ca2Si­O4
  4. D
    Ca3(PO4)2
Question 31Single Answer
What is the reson for white cement to be white ?
  1. A
    It does not contain carbon
  2. B
    It does not contain silicon
  3. C
    It does not contain iron
  4. D
    It does not contain calcium
Question 32Single Answer
Which fertilizer is assimilated directly by the plant ?
  1. A
    Super phosphate
  2. B
    Nitrolim
  3. C
    Muriate of Potash
  4. D
    Humus
Question 33Single Answer
Which of the following chemicals is used in foam fire extinguishers ?
  1. A
    Aluminium sulphate
  2. B
    Copper sulphate
  3. C
    Cobalt sulphate
  4. D
    Nickel sulphate 
Question 34Single Answer
What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?
  1. A
    Glass
  2. B
    Cement
  3. C
    paint
  4. D
    Gun powder
Question 35Single Answer
Which one of the following chemicals is used in beauty parlours for hair – setting ?
  1. A
    Sulphur based
  2. B
    Phosphorus based
  3. C
    Silicon based
  4. D
    Iron based 
Question 36Single Answer
Which one of the following is used as a mordant in dyeing and tanning industry ?
  1. A
    Magnesium oxide
  2. B
    Magnesium carbonate
  3. C
    Magnesium chloride
  4. D
    Magnesium sulphate
Question 37Single Answer
Which one of the following substances is used in the manufacture of safety matches ?
  1. A
    Red phosphorus
  2. B
    White phosphorus
  3. C
    Phosphorus trioxide (P2O3)
  4. D
    Black phosphorus
Question 38Single Answer
Which one of the following polymeric materials is used for making bullet proof jacket ?
  1. A
    Nylon –6, 6
  2. B
    Rayon
  3. C
    Kevlar
  4. D
    Dacron
Question 39Single Answer
The postfix expression AB + CD − can be evaluated using a
  1. A
    stack
  2. B
    tree
  3. C
    queue
  4. D
    linked list
Question 40Single Answer
The post order traversal of a binary tree is DEBFCA. Find out the pre-order traversal .
  1. A
    ABFCDE
  2. B
    ADBFEC
  3. C
    ABDECF
  4. D
    None of the above
Question 41Single Answer
The branch logic that provides making capabilities in the control unit is known as
  1. A
    Controlled transfer
  2. B
    Conditional transfer
  3. C
    Unconditional transfer
  4. D
    None of the above

General Awareness

Question 42Single 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 43Single 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 44Single Answer
Which of the following contain enzymes for cellular respiration ?
  1. A
    Dictyosomes
  2. B
    Endoplasmic reticulum
  3. C
    lysosomes
  4. D
    Mitochondria
Question 45Single Answer
Which one among the following nutrients is a strctural
  1. A
    Cell membrane
  2. B
    Plasma membrane
  3. C
    Cell wall
  4. D
    Nucleus
Question 46Single 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 47Single Answer
Which is the national game of Bhutan ?
  1. A
    badminton
  2. B
    basketball
  3. C
    football
  4. D
    archery
Question 48Single Answer
When was the Constituent Assembly of India formed?
  1. A
    1946
  2. B
    1947
  3. C
    1948
  4. D
    1950
Question 49Single Answer
What action did the DGCA take against Air India officials on December 3, 2025, following an inquiry into an unlicensed aircraft operation?
  1. A
    Issued a warning and fined the airline 50 crore
  2. B
    Recommended criminal charges against the CEO
  3. C
    Suspended the airline's operations for 30 days
  4. D
    Grounded an aircraft and de-rostered officials
Question 50Single Answer
Why did India's Ministry of External Affairs (MEA) describe a joint article by envoys of the UK, France, and Germany as "unacceptable" on December 3, 2025?
  1. A
    It criticized India's foreign policy on Ukraine
  2. B
    It accused India of human rights violations
  3. C
    It blamed Russia for the Ukraine war ahead of Putin's India visit
  4. D
    It opposed India's G20 presidency
Important Questions Package

NPCIL Stipendiary Trainee Instrument Mechanic Exam Online Question Bank Package

Buy NPCIL Stipendiary Trainee Instrument Mechanic Important Questions, MCQ, question answer in Hindi & English. It will help you to score high marks in NPCIL Stipendiary Trainee Instrument Mechanic question bank 2026 in Online, PDF & Print study material.

+ Free Monthly Current Affairs, GK & more PDF Download
Sr.Package NameAmount
1.NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam - Hindi
Description : 1000 Question with Answer.
₹101 [₹500]
2.NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam - Hindi
Description : 2000 Question with Answer.
₹151 [₹500]
3.NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam - English
Description : 1000 Question with Answer.
₹101 [₹500]
4.NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam - English
Description : 2000 Question with Answer.
₹151 [₹500]
5.NPCIL Stipendiary Trainee Instrument Mechanic (Advanced Test) Exam - English
Description : 600 Question with Answer.
₹101 [₹500]
6.NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam - Hindi
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
7.NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam - English
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
8.NPCIL Stipendiary Trainee Instrument Mechanic (Advanced Test) Exam - English
Description : 600 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
9.NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam Question Bank Book - Hindi
Description : 1000 Question with Answer (Printed Material)
₹450 [₹800]
10.NPCIL Stipendiary Trainee Instrument Mechanic (Prelims) Exam Question Bank Book - English
Description : 1000 Question with Answer (Printed Material)
₹390 [₹600]
11.NPCIL Stipendiary Trainee Instrument Mechanic (Advanced Test) Exam Question Bank Book - English
Description : 600 Question with Answer (Printed Material)
₹390 [₹600]
View More Questions
Back to Exam
Question for NPCIL Stipendiary Trainee (Instrument & Electronics Mechanic) 2026 - Quiz / Questions / MCQ - Toppersexam