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 : 108B
25 : 96C
109 : 84D
25 : 6Question 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 sisterB
Father's brother's wife's sisterC
Father's brother's wife's motherD
Mother's brother's wife's motherQuestion 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 westB
1 km to the westC
2 km to the westD
3 km to the eastQuestion 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 croreB
3.32 croreC
1.89 croreD
4.41 croreQuestion 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 NB
2 NC
0 ND
50 NQuestion 2257
GK
Article 31B was introduced to protect which type of laws from court challenges?
A
Land reform lawsB
Language lawsC
Taxation lawsD
Environmental lawsQuestion 2258
GK
Which country hosted the 78 th Cannes Film Festival in May 2021?
A
SpainB
FranceC
The NetherlandsD
GermanyQuestion 2259
GK
What type of coastal plain are the Western Coastal Plains of India classified as?
A
Deltaic coastal plainB
Tidal coastal plainC
Emergent coastal plainD
Submerged coastal plainQuestion 2260
GK
Who among the following is NOT considered a leader of the Moderates in the Indian National Congress?
A
Gopal Krishna GokhaleB
Aurobindo GhoshC
Dadabhai NaorojiD
Ferozshah MehtaQuestion 2261
GK
What is the average of the first 10 prime numbers?
A
15.8B
14C
16D
12.9Question 2262
GK
Which of the following is the correct way to start a new blank presentation in MS PowerPoint?
A
Press Ctrl + NB
Click File → OpenC
Press Ctrl + OD
Click Insert → New SlideQuestion 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
VRZB
VSYC
VSZD
VRYQuestion 2264
GK
During which dynasty did the Mongols, led by Qultlug Khwaja, besiege Delhi and inflict significant damage?
A
Khalji DynastyB
Sayyid DynastyC
Mughal DynastyD
Suri DynastyQuestion 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
135B
133C
127D
118Question 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
OneB
TwoC
ThreeD
FourQuestion 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
87B
81C
77D
75Question 2269
GK
A patient lacking bile production would suffer from deficiency in absorption of ________.
A
waterB
glucoseC
amino acidsD
fat-soluble vitaminsQuestion 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
42B
126C
84D
168Question 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
55B
50C
41D
51Question 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
2011B
1976C
1978D
2002Question 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
48B
37C
46D
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