RRB NTPC Computer Based Test (CBT 1) — Questions and Answers

Question 1: Which satellite navigation system is developed and operated by India?

Galileo
GLONASS
NavIC (Correct answer)
GPS

Correct answer: NavIC

NavIC (Navigation with Indian Constellation), formerly known as IRNSS, is India's regional satellite navigation system developed and operated by ISRO.

Question 2: If the simple interest on a sum for 2 years at 5% per annum is Rs. 400, what is the principal?

Rs. 3000
Rs. 2000
Rs. 4500
Rs. 4000 (Correct answer)

Correct answer: Rs. 4000

SI = PRT/100 → 400 = P×5×2/100 → P = 400×100/10 = Rs. 4000.

Question 3: The ratio of two numbers is 3:5 and their sum is 64. The larger number is:

24
40 (Correct answer)
32
48

Correct answer: 40

The larger number = (5/8) × 64 = 40, since 5 parts out of a total of 8 parts.

Question 4: If 'White' means 'Red', 'Red' means 'Blue', 'Blue' means 'Green', what is the color of grass?

Blue (Correct answer)
Green
White
Red

Correct answer: Blue

Grass is normally green, but 'Green' is coded as 'Blue', so the answer is Blue.

Question 5: Complete the analogy: Station : Train :: Airport : ?

Aircraft (Correct answer)
Runway
Pilot
Terminal

Correct answer: Aircraft

A station is a place for trains; an airport is a place for aircraft.

Question 6: The HCF of 72 and 120 is:

36
18
12
24 (Correct answer)

Correct answer: 24

72 = 2³ × 3² and 120 = 2³ × 3 × 5. HCF = 2³ × 3 = 24.

Question 7: If A is the brother of B, B is the sister of C, C is the father of D, how is A related to D?

Grandfather
Uncle (Correct answer)
Father
Brother

Correct answer: Uncle

A is B's brother, B is C's sister (so A and C are siblings), and C is D's father, making A the uncle of D.

Question 8: What does FDI stand for in the context of international economics?

Federal Debt Instrument
Fiscal Debt Index
Financial Development Initiative
Foreign Direct Investment (Correct answer)

Correct answer: Foreign Direct Investment

FDI stands for Foreign Direct Investment, which refers to investment made by a company or individual in one country into business interests in another country.

Question 9: If (x + 2)(x - 3) = 0, what are the values of x?

x = 2 or x = 3
x = -2 or x = -3
x = 2 or x = -3
x = -2 or x = 3 (Correct answer)

Correct answer: x = -2 or x = 3

Setting each factor to zero: x + 2 = 0 → x = -2; or x - 3 = 0 → x = 3.

Question 10: India's Union Budget is typically presented in Parliament on which date?

February 1 (Correct answer)
April 1
January 26
March 31

Correct answer: February 1

Since 2017, the Union Budget has been presented on February 1 each year, changed from the last working day of February by Finance Minister Arun Jaitley.

Question 11: Which of the following best describes inflation?

A temporary rise in the value of currency
A sustained increase in the general price level (Correct answer)
A sustained decrease in the general price level
A reduction in government expenditure

Correct answer: A sustained increase in the general price level

Inflation refers to a sustained and general rise in the price level of goods and services in an economy over a period of time, reducing the purchasing power of money.

Question 12: If the roots of a quadratic equation are 3 and -5, what is the equation?

x² - 2x - 15 = 0
x² + 2x - 15 = 0 (Correct answer)
x² - 2x + 15 = 0
x² + 8x + 15 = 0

Correct answer: x² + 2x - 15 = 0

Sum of roots = 3 + (-5) = -2; Product of roots = 3 × (-5) = -15. Equation: x² - (sum)x + (product) = 0 → x² + 2x - 15 = 0.

Question 13: A number when divided by 6 leaves a remainder of 3. What will be the remainder when the same number is divided by 3?

3
0 (Correct answer)
2
1

Correct answer: 0

If N = 6q + 3, then N = 3(2q+1), so N is exactly divisible by 3, leaving remainder 0.

Question 14: The state of Andhra Pradesh was established on ____________.

October 12, 1958
November 21, 1958
October 11, 1956
November 1, 1956 (Correct answer)

Correct answer: November 1, 1956

The state of Andhra Pradesh was established on November 1, 1956, as a result of the States Reorganisation Act. This act reorganized Indian states primarily along linguistic lines. Andhra Pradesh was formed by merging the Telugu-speaking areas of the former Hyderabad State with the existing Andhra State.

Question 15: The speed of light in vacuum is approximately:

3 × 10¹⁰ m/s
3 × 10⁶ m/s
3 × 10¹² m/s
3 × 10⁸ m/s (Correct answer)

Correct answer: 3 × 10⁸ m/s

The speed of light in vacuum (c) is approximately 3 × 10⁸ m/s (exactly 299,792,458 m/s). This is a fundamental constant of nature.

Question 16: A series: Z, X, V, T, R, ? What comes next?

S
P (Correct answer)
O
Q

Correct answer: P

Each letter skips one: Z, X, V, T, R, P (moving backward by 2 each time).

Question 17: Select the missing term: ACE, BDF, CEG, ?

CFH
DFH (Correct answer)
DGI
EGI

Correct answer: DFH

Each group shifts one letter forward: A→B→C→D, C→D→E→F, E→F→G→H, giving DFH.

Question 18: Find the odd one out: 8, 27, 64, 100, 125

8
27
100 (Correct answer)
125

Correct answer: 100

100 is the odd one out because 8=2³, 27=3³, 64=4³, 125=5³ are perfect cubes, but 100 is not.

Question 19: Project Tiger was launched in India in which year?

1973 (Correct answer)
1980
1975
1970

Correct answer: 1973

Project Tiger was launched on April 1, 1973, by Prime Minister Indira Gandhi to protect the Bengal tiger, starting with 9 tiger reserves.

Question 20: Which city has the largest railway station (by number of platforms) in India?

Howrah (Correct answer)
Chennai Central
New Delhi
Mumbai CST

Correct answer: Howrah

Howrah Junction in Kolkata has the most platforms (23 platforms) of any railway station in India.

Question 21: The LCM of 12 and 18 is:

72
36 (Correct answer)
24
54

Correct answer: 36

The LCM of 12 and 18 is 36 because 36 is the smallest number divisible by both.

Question 22: The Currency of Japan is:

Won
Yuan
Ringgit
Yen (Correct answer)

Correct answer: Yen

The Japanese Yen (JPY) is the official currency of Japan.

Question 23: The 'Digital India' initiative was launched with which primary objective?

To provide free smartphones to citizens
To transform India into a digitally empowered society and knowledge economy (Correct answer)
To build digital infrastructure for urban areas only
To promote digital literacy only in rural areas

Correct answer: To transform India into a digitally empowered society and knowledge economy

Digital India was launched to transform India into a digitally empowered society and knowledge economy by providing government services electronically.

Question 24: If a number is increased by 20% and then decreased by 20%, the net change is:

No change
4% decrease (Correct answer)
2% decrease
4% increase

Correct answer: 4% decrease

After a 20% increase and 20% decrease, the net effect is a 4% decrease (100 × 1.2 × 0.8 = 96).

Question 25: If TRAIN is coded as USBJM, how is RAIL coded?

TBKM
SBLM
RBKM
SBJM (Correct answer)

Correct answer: SBJM

Each letter is shifted one position forward: R→S, A→B, I→J, L→M = SBJM.

Question 26: Mirror image: If a clock shows 7:30, its mirror image will show:

4:30 (Correct answer)
6:30
5:00
4:30

Correct answer: 4:30

The mirror image of 7:30 on a clock face is 4:30 (12−7=5 is wrong; mirror formula gives 11:60−7:30=4:30).

Question 27: A clock shows 3:15. What is the angle between the hour and minute hands?

7.5° (Correct answer)
30°
15°
0°

Correct answer: 7.5°

At 3:15, minute hand is at 90° and hour hand is at 97.5° (3×30 + 15×0.5), giving an angle of 7.5°.

Question 28: The term 'Roaring Forties' refers to:

A type of tropical cyclone in the Pacific
Strong westerly winds between 40°-50° South latitude (Correct answer)
A volcanic zone in South America
Ocean currents in the North Atlantic

Correct answer: Strong westerly winds between 40°-50° South latitude

The 'Roaring Forties' are powerful westerly winds found in the Southern Hemisphere between 40° and 50° south latitude, important for sailing ships historically.

Question 29: A car covers 150 km in 2.5 hours. How long will it take to cover 300 km at the same speed?

4 hours
4.5 hours
5 hours (Correct answer)
6 hours

Correct answer: 5 hours

Speed = 150/2.5 = 60 km/h; time for 300 km = 300/60 = 5 hours.

Question 30: Which planet is known as the 'Red Planet'?

Mars (Correct answer)
Venus
Jupiter
Saturn

Correct answer: Mars

Mars appears red due to iron oxide (rust) on its surface, earning it the nickname 'Red Planet'.

RRB NTPC Computer Based Test (CBT 1)

The Railway Recruitment Board Non-Technical Popular Categories (RRB NTPC) CBT 1 is the first-stage screening exam for railway jobs in India, testing candidates on General Awareness, Mathematics, and General Intelligence & Reasoning for non-technical posts in Indian Railways.

Questions

27 min

Time Limit

40%

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