RRB-NTPC 2021 General Awareness

Practice subject-wise previous year questions

Question 2251
GK

A solid metallic sphere of radius 10 cm is melted and recast into 125 identical spheres. What is the ratio of the surface area of the original sphere to the total surface area of 6 smaller spheres so formed?

A
49 : 108
B
25 : 96
C
109 : 84
D
25 : 6
Question 2252
GK

Which criticism highlights the parliamentary system's departure from the principle of separation of powers?

A
Ministers are appointed based on expertise rather than political affiliation.
B
The executive and legislature operate independently.
C
The cabinet simultaneously leads the executive and legislature, creating fusion of powers. 
D
The President has absolute control over the Prime Minister.
Question 2253
GK

In a certain code language, A + B means 'A is the mother of B', A - B means 'A is the brother of B', A x B means 'A is the wife of B' and A ÷ B means 'A is the father of B'. How is M related to Q if 'M + N × O - P ÷ Q'?

A
Mother's brother's wife's sister
B
Father's brother's wife's sister
C
Father's brother's wife's mother
D
Mother's brother's wife's mother
Question 2254
GK

Rajendra starts from point A and drives 9 km towards the north. He then takes a left turn, drives 7 km, turns left and drives 11 km. He then takes a left turn and drives 10 km. He takes a final left turn, drives 2 km and stops at point P. How far (shortest distance) and towards which direction should he drive in order to reach point A again (all turns are 90 degree turns only unless specified)?

A
3 km to the west
B
1 km to the west
C
2 km to the west
D
3 km to the east
Question 2255
GK

What is the target number of houses to be built under the Pradhan Mantri Awas Yojana (Urban) by 2023-2024?

A
2.67 crore
B
3.32 crore
C
1.89 crore
D
4.41 crore
Question 2256
GK

A body of mass 10 kg is moving with a uniform velocity of 5 m/s. What is the net force acting on it?

A
10 N
B
2 N
C
0 N
D
50 N
Question 2257
GK

Article 31B was introduced to protect which type of laws from court challenges?

A
Land reform laws
B
Language laws
C
Taxation laws
D
Environmental laws
Question 2258
GK

Which country hosted the 78 th Cannes Film Festival in May 2021?

A
Spain
B
France
C
The Netherlands
D
Germany
Question 2259
GK

What type of coastal plain are the Western Coastal Plains of India classified as?

A
Deltaic coastal plain
B
Tidal coastal plain
C
Emergent coastal plain
D
Submerged coastal plain
Question 2260
GK

Who among the following is NOT considered a leader of the Moderates in the Indian National Congress?

A
Gopal Krishna Gokhale
B
Aurobindo Ghosh
C
Dadabhai Naoroji
D
Ferozshah Mehta
Question 2261
GK

What is the average of the first 10 prime numbers?

A
15.8
B
14
C
16
D
12.9
Question 2262
GK

Which of the following is the correct way to start a new blank presentation in MS PowerPoint?

A
Press Ctrl + N
B
Click File → Open
C
Press Ctrl + O
D
Click Insert → New Slide
Question 2263
GK

What should come in place of the question mark (?) in the given series based on the English alphabetical order?  NKR PMT ROV TQX ?

A
VRZ
B
VSY
C
VSZ
D
VRY
Question 2264
GK

During which dynasty did the Mongols, led by Qultlug Khwaja, besiege Delhi and inflict significant damage?

A
Khalji Dynasty
B
Sayyid Dynasty
C
Mughal Dynasty
D
Suri Dynasty
Question 2265
GK

Which of the following statements is NOT correct with reference to the p-block elements?

A
They are also called transition elements.
B
They include non-metals and noble gases.
C
Their outermost configuration varies from ns²np¹ to ns²np⁶.
D
They belong to Groups 13 to 18.
Question 2266
GK

Simplify: $127 - [7 \times (1 - 5 + 4)] \div 91$

A
135
B
133
C
127
D
118
Question 2267
GK

Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. All numbers are single-digit numbers.  (Left) 3 * 9 & % 4 6 @ 9 # 1 * £ 5 8 $ 7 & 3 Ω (Right)  How many such symbols are there each of which is immediately preceded by a symbol and also immediately followed by a number?

A
One
B
Two
C
Three
D
Four
Question 2268
GK

Select the number from among the given options that can replace the question mark (?) in the following series.  215 187 161 137 115 95 ?

A
87
B
81
C
77
D
75
Question 2269
GK

A patient lacking bile production would suffer from deficiency in absorption of ________.

A
water
B
glucose
C
amino acids
D
fat-soluble vitamins
Question 2270
GK

One pipe can fill the tank in 21 minutes while another pipe can empty completely filled tank in 24 minutes. If both the pipes are operated together on empty tank, how long (in minutes) will it take to fill one-fourth of the tank?

A
42
B
126
C
84
D
168
Question 2271
GK

$6893.5 \times 603.3 \times 0.3019$ is equal in value to:

A
$6.8935 \times 6.033 \times 301.9$
B
$68.935 \times 6033 \times 3.019$  
C
$6.8935 \times 60.33 \times 30.19$
D
$689.35 \times 603.3 \times 301.9$
Question 2272
GK

The arithmetic mean of the observations 28, 31, 40, 63, 57, 37, 34, 70 and 99 is:

A
55
B
50
C
41
D
51
Question 2273
GK

What happens if a law is declared unconstitutional under judicial review?

A
It becomes null and void.
B
It is amended by the President.
C
It remains valid but unenforceable.
D
It is sent back to the Parliament for reconsideration.
Question 2274
GK

When was the protection and improvement of environment and safeguarding of forests and wildlife as a directive added in the Constitution of India?

A
2011
B
1976
C
1978
D
2002
Question 2275
GK

When $x$ is added to each of 22, 26, 19 and 21, then the numbers so obtained, in this order, are in proportion. Then, if $2x : y :: y : (4x-8)$, and $y > 0$, what is the value of $y$?

A
48
B
37
C
46
D
54