RRB-NTPC 2021 General Awareness

Practice subject-wise previous year questions

Question 2226
GK

A group of numbers and symbols is coded using letter codes as per the codes given below and the conditions that follow. Study the given codes and conditions and answer the question that follows. Note: If none of the conditions apply, then codes for the respective number/symbol are to be followed directly as given in the table. Number/symbol 4 @ 7 # 3 & 8 * 2 Λ 9 $ 6 + Code H A J B K C L D M E N F P G Conditions: If the first element is a number and the last a symbol, the codes for these two (the first and the last elements) are to be interchanged. If the first element is an even number and the last an odd number, the first and last elements are to be coded as '('. If both second and third elements are perfect squares, the code of the third element will be the code for the second element. What will be the code for the following group? 4739

A
(JK(
B
(KJ(
C
HKJN
D
HJKN
Question 2227
GK

According to the State Bank of India (SBI) report on India's poverty rate for 2024, what is the estimated national poverty rate?

A
5.5% to 6.0%
B
4.0% to 4.5%
C
3.5% to 4.0%
D
4.5% to 5.0%
Question 2228
GK

Robin and Varun together can paint a hall in 6 days. Robin alone can paint it in 42 days. In how many days can Varun alone paint it?

A
7
B
9
C
10
D
8
Question 2229
GK

What will come in place of the question mark (?) in the following equation, if '+' and '-' are interchanged and 'x' and '÷' are interchanged? 54 ÷ 11 + 272 × 8 - 114 = ?

A
674
B
672
C
675
D
673
Question 2230
GK

A group of people consists of men, women and children. Among them, 20% are men, 50% are women and the rest are children, and their average weights are 45 kg, 50 kg and 50 kg, respectively. The average weight (in kg) of the group is:

A
51
B
50
C
48
D
49
Question 2231
GK

What should come in place of the question mark (?) in the given series based on the English alphabetical order? JGM KHN LIO MJP ?

A
NKR
B
NLR
C
NLQ
D
NKQ
Question 2232
GK

The term 'complementary' in the context of DNA refers to which of the following properties?

A
Identical chemical composition of both strands
B
Parallel orientation of nucleotide chains
C
Matching number of sugar-phosphate units
D
Hydrogen bonding potential based on base specificity
Question 2233
GK

Which of the following foods would you advise to neutralise excess stomach acids?

A
Baking soda
B
Vinegar
C
Lemon juice
D
Spicy peppers
Question 2234
GK

Under the Fifth Schedule, the Governor's regulations in Scheduled Areas can prohibit or restrict which of the following?

A
Tax collection
B
Land transfers
C
Water usage
D
Freedom of speech
Question 2235
GK

In a bag containing red, green, and pink tokens, the ratio of red to green tokens was 7 : 20, while the ratio of pink to red tokens was 15:12. What was the ratio of green to pink tokens?

A
19 : 12
B
16 : 7
C
11 : 5
D
25 : 7
Question 2236
GK

Alok, Gita, and Suresh invest ₹56,000, ₹52,000, and ₹69,000 respectively to start a business. At the end of the year, the total profit earned is ₹76,700. 31% of the total profit earned is given to charity and the rest is divided among them in the ratio of their investment. What will be the share of Suresh (in ₹)?

A
20,631
B
20,693
C
20,551
D
20,727
Question 2237
GK

What happens if you try to open a MS PowerPoint presentation created in a newer version (e.g., MS PowerPoint 2021) in an older version (e.g., MS PowerPoint 2010)?

A
The file will be automatically converted to a PDF.
B
The file will open normally with all features intact.
C
MS PowerPoint will display an error and refuse to open the file.
D
The file will open in Compatibility Mode with limited features.
Question 2238
GK

What popular title is used to refer to the Bengali poet Jibanananda Das?

A
Jibon Kobi
B
Rupashi Banglar Kabi
C
Kobiraj of Kolkata
D
Bhasha Shaheed Kabi
Question 2239
GK

Following are the marks obtained by 5 students in a test: 45, 67, 80, 56 and 72. What is the range of the marks?

A
40
B
45
C
80
D
35
Question 2240
GK

The Waqf (Amendment) Act, 2021 introduced which significant change to the composition of Waqf Boards?

A
Abolition of State Waqf Boards
B
Privatisation of Waqf properties
C
Inclusion of non-Muslim members
D
Exemption from government audits
Question 2241
GK

Which period in India's demographic history is marked by a sharp decline in mortality and persistently high fertility rates?

A
Phase II (1921-1951)
B
Phase I (1901–1921)
C
Phase III (1951–1981)
D
Phase IV (1981–2001)
Question 2242
GK

When was the Protection of Human Rights Act passed in India?

A
2003
B
1996
C
2006
D
1993
Question 2243
GK

A vendor sold 4 chocolates for ₹1, thereby gaining 100%. How many chocolates did he buy for ₹1?

A
12
B
14
C
8
D
10
Question 2244
GK

India's first indigenous CAR-T therapy and gene therapy for Hemophilia, discussed during the 7 th PM-STIAC meeting in January 2021, were presented by experts from which institutions?

A
NIPER and PGIMER, Chandigarh
B
CSIR and JIPMER, Puducherry
C
IIT Bombay and St. John's Hospital, Bengaluru
D
IISc, Bengaluru, and AIIMS, Delhi
Question 2245
GK

If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 6435127, what will be the sum of the second digit from the left and the third digit from the right in the new number thus formed?

A
4
B
10
C
8
D
6
Question 2246
GK

Arvind is now 40 years old and Asha is 25 years old. How many years ago from now was Arvind four times as old as Asha?

A
10 years
B
20 years
C
15 years
D
25 years
Question 2247
GK

Study the given Venn diagram carefully and answer the questions. The numbers in different sections indicate the number of persons. How many electricians are there who are also architects but not dentists?

A
5
B
2
C
9
D
4
Question 2248
GK

Given are the ages (in years) of five people: 20, 30, 35, 40 and 45. Calculate the average age in years.

A
34
B
30
C
32.5
D
35
Question 2249
GK

In an election, there were two candidates. One of the candidates secured 48% of the votes and was defeated by the other candidate by 756 votes. Find the total number of votes polled.

A
17,800
B
19,500
C
15,600
D
18900
Question 2250
GK

In a circle, the length of a chord is 12 cm and the perpendicular distance from the centre of the circle to the chord is 5 cm. What is the radius of the circle? (Rounded up to two decimal places.)

A
7.81 cm
B
6.97 cm
C
9.87 cm
D
10.25 cm