RRB Group D Free Practice Set-15 MCQ Series: Welcome to the RRB Group D Free Practice Set-15—an exclusive compilation of multiple-choice questions (MCQs) designed to help you prepare for the Computer-Based Test (CBT) phase of the RRB Group D exam.
This practice set is tailored to provide you with a comprehensive mix of questions covering key topics such as:
Practice consistently with this set to build confidence, improve speed, and ensure you’re well-prepared for the exam day.
1. If the sum of two numbers is 120 and their ratio is 5:3, what is the smaller number?
a) 40
b) 45
c) 50
d) 60
2. A man spends 30% of his income on rent, 20% on food, and saves the rest. If his income is ₹60,000, how much does he save?
a) ₹18,000
b) ₹24,000
c) ₹36,000
d) ₹42,000
3. Simplify: (4/3) × (9/8) × (16/27) ÷ (2/9).
a) 1/2
b) 2/3
c) 3/4
d) 1
4. A can complete a task in 15 days, and B can complete the same task in 20 days. If they work together, in how many days will they finish the task?
a) 8
b) 10
c) 12
d) 15
5. A sum of money becomes ₹18,000 in 2 years at 10% per annum simple interest. What is the principal amount?
a) ₹15,000
b) ₹16,000
c) ₹17,000
d) ₹18,000
Also Read: RRB Group D Free Practice Set-14 MCQ Series for CBT Exam
6. Which country hosted the 2023 G20 summit?
a) India
b) Brazil
c) Indonesia
d) Saudi Arabia
7. Who is known as the “Father of the Indian Constitution”?
a) Mahatma Gandhi
b) B.R. Ambedkar
c) Jawaharlal Nehru
d) Sardar Patel
8. The recently discovered element “Tennessine” belongs to which group in the periodic table?
a) Group 15
b) Group 16
c) Group 17
d) Group 18
9. Name the first Indian satellite launched into space.
a) INSAT-1A
b) Bhaskara-I
c) Aryabhata
d) Rohini
10. Which Indian city was included in the UNESCO World Heritage list in 2023?
a) Ahmedabad
b) Jaipur
c) Chandigarh
d) Varanasi
Also Read: RRB Group D Free Practice Set-13 MCQ Series for CBT Exam
11. In a certain code language, “RAILWAY” is written as “YZAILWR”. How is “STATION” written in that language?
a) OISTTAN
b) NOITTAS
c) TANIOST
d) STATION
12. A is the mother of B. C is the father of A. D is the son of C. How is D related to B?
a) Uncle
b) Grandfather
c) Brother
d) Cousin
13. Complete the series: 12, 17, 24, 33, 44, ?
a) 57
b) 56
c) 54
d) 53
14. A statement is followed by two assumptions. Read the statement and decide which assumption(s) is/are implicit:
Statement: “Electric cars are the future of urban transportation.”
Assumptions:
(I) Pollution levels in cities need to be reduced.
(II) Electric cars are expensive.
a) Only I
b) Only II
c) Both I and II
d) Neither I nor II
15. A clock shows 4:30 PM. If the minute hand is pointing towards North, in which direction is the hour hand pointing?
a) North-East
b) East
c) South-East
d) South
Also Read: RRB Group D Free Practice Set-12 MCQ Series for CBT Exam
16. What is the chemical formula for washing soda?
a) NaHCO₃
b) Na₂CO₃
c) Na₂CO₃·10H₂O
d) NaOH
17. Which part of the human brain is responsible for controlling balance and coordination?
a) Cerebrum
b) Cerebellum
c) Medulla
d) Hypothalamus
18. What is the unit of measurement for electric current?
a) Volt
b) Watt
c) Ampere
d) Ohm
19. Which type of chemical reaction is represented by the equation: 2H₂ + O₂ → 2H₂O?
a) Combustion
b) Synthesis
c) Decomposition
d) Displacement
20. Which enzyme is responsible for the digestion of proteins in the stomach?
a) Amylase
b) Lipase
c) Pepsin
d) Trypsin
Also Read: RRB Group D Free Practice Set-7 MCQ Series for CBT Exam
Answers to the
Here are the answers:
- b) 45
- c) ₹36,000
- a) 1/2
- b) 10
- b) ₹16,000
- a) India
- b) B.R. Ambedkar
- c) Group 17
- c) Aryabhata
- a) Ahmedabad
- b) NOITTAS
- a) Uncle
- a) 57
- a) Only I
- c) South-East
- c) Na₂CO₃·10H₂O
- b) Cerebellum
- c) Ampere
- b) Synthesis
- c) Pepsin
Disclaimer:
The questions and answers provided in this practice set are created for educational and practice purposes only. They are not sourced from any official Railway Recruitment Board (RRB) examination papers or confidential materials. The content is based on publicly available information and general knowledge to help candidates prepare for competitive exams. Karmasandhan.com does not claim any official association with RRB or any government organization.
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