Question Bank
Question for DCSEM Scientific Assistant - Quiz / Questions / MCQ in English
Last Update on : October 11, 2026
Duration: 60 · Questions: 50 · Max Marks: 150
To boost your performance in DCSEM Scientific Assistant exam, practice each question regularly and with focus. Every question tests your subject understanding, so solve them one at a time. Taking a quiz improves your speed and accuracy. Practicing topic-wise MCQs. Students benefit greatly from reviewing questions with answer keys, which help clarify concepts and strengthen Questions knowledge for success in DCSEM Scientific Assistant exams.
Latest DCSEM Scientific Assistant Exam Question (Objective Questions), MCQ in English
Subjects : Mathematics, Science, General Awareness
Question Bank DCSEM Scientific Assistant Stage-1 Prelims Exam - English
Mathematics
Q 1 :
The elements of the set {x : x is an integer, x2 : 4} can be represent as .....Z..... . Here, Z refers to
Q 2 :
Q 3 :
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
Q 4 :
The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is
Q 5 :
If A 
B and A
B, then
B and A B, thenQ 6 :
The number of non-empty subsets of the set{1, 2, 3, 4} is
Q 7 :
The number of elements of the power set of a set containing m elements is
Q 8 :
If A = {x : x = n2, n = 1, 2, 3}, then number of proper subsets is
Q 9 :
If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is
Q 10 :
Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then
Q 11 :
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}
A = {x : x2 + x + 1 = 0 and x Î Z} B = {x : x is a prime number and 19 < x < 23}
Q 12 :
The set {x : x4 = 1 and x 
R} is .....X.... set. Here, X refers to
R} is .....X.... set. Here, X refers toQ 13 :
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
A = {x : x2 – 5x + 6 = 0} and
B = {x : x2 – 3x + 2 = 0} having least number of elements is
Q 14 :
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
Q 15 :
If A = (–3, 5) and B = [–7, 9], then
- A.A = B
- B.A
B - C.B
A - D.None of these
Q 16 :
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
Q 17 :
Combine terms: 12a + 26b - 4b – 16a .
Q 18 :
The average of first 50 natural numbers is ………… .
Q 19 :
60 Times of 8 Equals to
Q 20 :
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 ?
Science
Q 21 :
In ruby laser, the stimulated emission is due to transition from
Q 22 :
A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is
Q 23 :
convex lens made of glass has focal length 0.15m in air. If the refractive index of glass is 3/2, and that of water is 4/3 the focal length of lens when immersed in water is
Q 24 :
Two sources are said to be coherent if they produce waves
Q 25 :
Three resistors 1 Ω, 2 Ω, 3Ω resistor a 3 V battery is connected. The current through 3 Ω resistor is -
Q 26 :
10-6 M NaOH is diluted 100 times. The pH of the diluted base is
Q 27 :
In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is
Q 28 :
The one which decreases with dilution is
Q 29 :
Vapour pressure of pure ‘A’ is 70 mm of Hg at 25oC. It forms an ideal solution with ‘B’ in which mole fraction of A is 0.8. if the vapour pressure of the solution is 84 mm of Hg at 25oC, the vapour pressure of pure ‘B’ at 25oC is
Q 30 :
A 6% solution of urea is isotonic with
Q 31 :
The respiratory quotient during cellular respiration would depend on
Q 32 :
Which of the following is not a green - house gas ?
Q 33 :
Both husband and wife have normal vision though their fathers were colorblind and mothers did not have any gene for colorblindness. The probability of their daughters becoming colorblind is
Q 34 :
An animal, which has both exoskeleton and endoskeleton structures is a
Q 35 :
Identify the group, which includes animals all of which give birth to young ones directly?
Q 36 :
Compare the statement A and B.
Statement A Blood sugar level falls rapidly after hepatectomy.
Statement B The glycogen of the liver is the principal source of blood sugar.
Select the correct description.
Statement A Blood sugar level falls rapidly after hepatectomy.
Statement B The glycogen of the liver is the principal source of blood sugar.
Select the correct description.
Q 37 :
What is/are true about heart wood?
(A) It does not help in water conduction.
(B) It is also called laburnum.
(C) It is dark in colour but very soft.
(D) It has tracheary elements which are filled with tannin, resin, etc.
(A) It does not help in water conduction.
(B) It is also called laburnum.
(C) It is dark in colour but very soft.
(D) It has tracheary elements which are filled with tannin, resin, etc.
Q 38 :
Compare the statements A and B.
Statement A Auxins promote apical dominance by suppressing the activity of lateral buds.
Statement B In moriculature, periodic pruning of shoot tips is done to make mulberry plants bushy.
Select the correct description.
Statement A Auxins promote apical dominance by suppressing the activity of lateral buds.
Statement B In moriculature, periodic pruning of shoot tips is done to make mulberry plants bushy.
Select the correct description.
Q 39 :
Bryophytes resemble algae is the following aspects
Q 40 :
Stoma opens, when
General Awareness
Q 41 :
Yojna a weekly journal
Q 42 :
Kurukshetra a journal on rural development is published by
Q 43 :
Devaluation of a currency means
Q 44 :
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 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
Q 45 :
Which of the following programmes aims at the promotion of savings among rural women
Q 46 :
‘Raising and Accelerating MSME Performance’ (RAMP) is supported by which global institution ?
Q 47 :
Which section of Railways has completed 100 per cent electrification across the Zone ?
Q 48 :
Kaziranga National Park is located along which Indian River ?
Q 49 :
Which bank acquired the Indian consumer banking business of City Bank ?
Q 50 :
The Lok Sabha passed a bill to merge three municipal corporations of which city into a single entity ?
Important Questions Package
DCSEM Scientific Assistant Exam Online Question Bank Package
Buy DCSEM Scientific Assistant Important Questions, MCQ, question answer in Hindi & English. It will help you to score high marks in DCSEM Scientific Assistant question bank 2026 in Online, PDF & Print study material.
+ Free Monthly Current Affairs, GK & more PDF Download
| Sr. | Package Name | Amount | |
|---|---|---|---|
| 1. | DCSEM Scientific Assistant Stage-1 Prelims Exam - English Description : 1500 Question with Answer. | ₹181 | |
| 2. | DCSEM Scientific Assistant Stage-1 Prelims Exam - Hindi Description : 1500 Question with Answer. | ₹181 |