RRB NTPC 2025 Under Graduate Level CBT GK MCQ Practice Set-5 | Boost Your Exam Preparation

RRB NTPC 2025 Under Graduate Level CBT GK MCQ Practice Set-5: The Railway Recruitment Board (RRB) NTPC exam is a prestigious and competitive examination for candidates aspiring to secure non-technical positions in Indian Railways. One of the key sections in the exam is General Knowledge (GK), which plays a vital role in determining overall performance.

To enhance preparation, the “RRB NTPC 2025 Under Graduate Level CBT GK MCQ Practice Set-5” offers a well-structured set of multiple-choice questions covering essential GK topics. This practice set is designed to help candidates assess their knowledge, improve accuracy, and boost confidence for the upcoming CBT exam.

RRB NTPC 2025 Under Graduate Level CBT GK MCQ Practice Set-5

1. The internal energy of an object refers to:
a) The kinetic energy of the object
b) The kinetic energy of the molecules of the object
c) The sum of the kinetic and potential energy of the object
d) The sum of the kinetic and potential energy of the molecules of the object

2. Mercury is used in thermometers. Which of the following statements is incorrect?
a) Mercury is a good conductor of heat
b) Mercury does not stick to glass
c) Mercury has a very high specific heat
d) The volume of mercury increases uniformly with temperature

3. Which compound contains both ionic and covalent bonds?
a) CH4
b) H2
c) KCN
d) NaCl

4. Which metal ion gives a chocolate-colored precipitate with potassium ferrocyanide?
a) Fe3+
b) Zn2+
c) Cu2+
d) Al3+

5. A glass rod (refractive index H2) is immersed in glycerin (refractive index H1) and becomes invisible. What can we conclude?
a) H1 > H2
b) H1 < H2
c) H1 = H2
d) It does not depend on the refractive index

6. Which element forms an amphoteric oxide?
a) Bismuth
b) Antimony
c) Phosphorus
d) Sodium

7. An acid in concentrated form does not produce brown fumes with copper, but in dilute form, it produces a white precipitate with silver nitrate solution. The precipitate is soluble in ammonia but insoluble in nitric acid. The acid is:
a) Nitric acid
b) Hydrochloric acid
c) Sulfuric acid
d) Phosphoric acid

8. Two 220V, 60W bulbs are used for 5 hours daily for 10 days. If the cost per unit (1 kilowatt-hour) is Rs. 3.50, what is the total cost?
a) Rs. 10.50
b) Rs. 21.00
c) Rs. 38.50
d) Rs. 77.50

9. Which of the following substances does not contain oxygen?
a) Bauxite
b) Cryolite
c) Dolomite
d) Epsom salt

10. Which of the following quantities is dimensionless?
a) Volume
b) Acceleration
c) Kinetic energy
d) Refractive index

11. Rectified spirit is a mixture of:
a) 95% ethanol + 5% methanol
b) 95% ethanol + 5% water
c) 95% ethanol + 5% pyridine
d) 100% ethanol

12. The acid that can dissolve gold is:
a) Nitric acid
b) Hydrochloric acid
c) Selenic acid
d) Aqua regia

13. The metal used in galvanization is:
a) Iron
b) Silver
c) Zinc
d) Copper

14. The method used to separate ortho and para-nitrophenol is:
a) Crystallization
b) Steam distillation
c) Sublimation
d) Filtration

15. When ethyl alcohol vapor is passed over heated copper at 300°C, the product formed is:
a) C2H4
b) CH3CHO
c) CH3COCH3
d) C2H6

16. A car moves at 5 meters per second. What is its speed in km/h?
a) 18/t
b) 310/t
c) 36/t
d) 3t/10

17. Two objects of masses m1 and m2 are moving with the same kinetic energy. The ratio of their linear momentum is:
a) m1 : m2
b) m2 : m1
c) √m1 : √m2
d) √m2 : √m1

18. The ratio of the total distance traveled to the displacement of a particle moving along a semicircular path of radius R is:
a) π : 4
b) π : 2
c) 3π : 4
d) √π : √π

19. Benzoyl chloride undergoes hydrolysis with calcium hydroxide to produce:
a) Benzoic acid
b) Benzaldehyde
c) Benzyl alcohol
d) Benzoin

20. Slaked lime is:
a) CaCO3
b) CaCO2
c) CaH2
d) CaO

Also Read: RRB NTPC 2025 Under Graduate Level CBT GK MCQ Practice Set-4

Answers to the RRB NTPC 2025 Under Graduate Level CBT GK MCQ Practice Set-5

1. c
2. c
3. c
4. c
5. c
6. b
7. b
8. a
9. b
10. d
11. b
12. d
13. c
14. b
15. b
16. a
17. c
18. b
19. c
20. d