RRB-NTPC 2021 General Awareness

Practice subject-wise previous year questions

Question 3251
GK

In renal physiology, which segment of the nephron is most critical for generating the osmotic gradient that concentrates urine?

A
Collecting duct
B
Loop of Henle
C
Distal convoluted tubule
D
Proximal convoluted tubule
Question 3252
GK

5 times the present age of Sujatha is 5 years more than 2 times the present age of Vanita. After 4 years, 3 times the age of Vanita will be 8 years less than 5 times the age of Sujatha. The age of Vanita is k years more than that of Sujatha. What is the value of k?

A
2
B
3
C
4
D
5
Question 3253
GK

This question is based on the five, three-digit numbers given below. (Left) 143 656 651 264 282 (Right) (Example- 697 - First digit = 6, second digit = 9 and third digit = 7) (NOTE: All operations to be done from left to right.) What will be the resultant if the first digit of the highest number is subtracted from the third digit of the lowest number?

A
-4
B
-3
C
-2
D
0
Question 3254
GK

Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. (NOTE: All numbers are single digit numbers only.) (Left) # 1 9 7 $ 9 1 5 2 @ 6 8 # € £ & 8 $ 4 5 9 5 (Right) How many such numbers are there each of which is immediately preceded by a number and also immediately followed by a symbol?

A
3
B
2
C
4
D
5
Question 3255
GK

Which category of musical instruments was related to objects of utility in daily life?

A
Tata Vadya
B
Avanaddh Vadya
C
Ghana Vadya
D
Sushira Vadya
Question 3256
GK

A student scores 80 marks in a subject with a weightage of 3 and 90 marks in another subject with a weightage of 2. What is the weighted average score of the student?

A
84
B
88
C
86
D
82
Question 3257
GK

Two banks, A and B, offered loans at 3.5% and 6.5% per annum, respectively. Keshav borrowed an amount of ₹2,00,000 from each bank. Find the positive difference between the amounts of simple interest paid to the two banks by Keshav after 2 years.

A
13,500
B
13,000
C
11,500
D
12,000
Question 3258
GK

Piyush ranked 34th from the top and 57th from the bottom in his class. How many students are there in his class?

A
91
B
92
C
90
D
89
Question 3259
GK

Which of the following correctly characterises the regulatory and structural aspects of the NPS Vatsalya scheme, as launched in 2024? The scheme is administered by the Pension Fund Regulatory and Development Authority (PFRDA). Contributions under NPS Vatsalya are pooled into a government-managed consolidated fund without individual accounts. The scheme allows a smooth shift to a regular NPS account when the subscriber turns 18 years of age. Upon attaining adulthood, subscribers must compulsorily exit NPS Vatsalya and opt for the Atal Pension Yojana.

A
Only 2
B
2, 3 and 4
C
1 and 3
D
1 and 4
Question 3260
GK

The average marks of 30 students in a mathematics test were found to be 55. However, it was later discovered that a mark of 72 was mistakenly recorded as 27, and another mark of 64 was mistakenly recorded as 46. What is the actual average score?

A
60.2
B
55.5
C
63.4
D
57.1
Question 3261
GK

Mr. Evan starts from Point A and drives 8 km towards the East. He then takes a right turn, drives 19 km, turns right and drives 19 km. He then takes a right turn and drives 9 km. He then taken a right turn, drives 3 km, turns left and drives 6 km. He takes a final right turn, drives 8 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 degrees turns only unless specified.)

A
3 km to the West
B
4 km to the North
C
7 km to the North
D
9 km to the West
Question 3262
GK

Each of the digits in the number 6427519 is arranged in ascending order from left to right. The position(s) of how many digits will remain unchanged as compared to that in the original number?

A
3
B
0
C
2
D
1
Question 3263
GK

What defines a conjoint vascular bundle?

A
Xylem and phloem present on the same radius
B
Xylem and phloem alternate along the radii
C
Cambium is absent
D
Xylem only on the outer side
Question 3264
GK

6 times the present age of Sujatha is 6 years more than 3 times the present age of Vanita. After 7 years, 4 times the age of Vanita will be 6 years less than 6 times the age of Sujatha. The age of Vanita is k years more than that of Sujatha. What is the value of k?

A
2
B
6
C
7
D
4
Question 3265
GK

A and B complete a work in 6 days. If A alone can do it in 7 days, then B alone can do it in ______ days.

A
44
B
42
C
43
D
41
Question 3266
GK

What is Lord Thomas Babington Macaulay best known for in the context of British India?

A
Introducing the Vernacular Press Act
B
Framing the Government of India Act, 1858
C
Drafting the Indian Penal Code and promoting English education
D
Leading the revolt of 1857
Question 3267
GK

Eshwar starts from Point Y and drives 13 km towards the south. He then takes a left turn, drives 27 km, turns right and drives 51 km. He then takes a left turn and drives 18 km. He takes a left turn, drives 35 km. He then turns left, drives 45 km, turns left and drives 18 km to stop at Point Z. How far (shortest distance) and towards which direction should he drive in order to reach Point Y again? (All turns are 90-degree turns only unless specified.)

A
47 km towards the north
B
42 km towards the east
C
36 km towards the south
D
51 km towards the west
Question 3268
GK

Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. (NOTE: All numbers are single digit numbers only.) (Left) @ * # % * 8 1 4 2 2 & 4 8 9 8 8 # 6 $ $ * 3 (Right) How many such numbers are there each of which is immediately preceded by a number and also immediately followed by a symbol?

A
2
B
3
C
1
D
4
Question 3269
GK

In a certain code language, 'RATS' is coded as '3571' and 'TUBE' is coded as '2146'. What is the code for 'T' in the given code language?

A
2
B
1
C
7
D
6
Question 3270
GK

Which of the following options is INCORRECT regarding the factors that inflamed the feelings of the Sepoys and led to the Revolt of 1857?

A
Compulsion on sepoys to wear their caste marks and follow their own caste
B
Forceful conversions to Christianity
C
Act that required every new recruit to give an undertaking to serve overseas
D
Army maintaining chaplains at state cost and promotion of Christian propaganda among the sepoys
Question 3271
GK

Which of the following is a tributary of the Yamuna river?

A
Son
B
Tons
C
Gomti
D
Teesta
Question 3272
GK

The mean proportional between 0.09 and 16 is:

A
120
B
12
C
1.2
D
0.12
Question 3273
GK

The average of 6 numbers is 18. If each number is increased by 5, what will be the new average?

A
20
B
25
C
23
D
18
Question 3274
GK

If '+' means 'subtraction', '-' means 'multiplication', 'x' means 'division' and '÷' means 'addition', then what will come in place of the question mark (?) in the following equation? 96 × 8 − 11 ÷ 83 + 22 = ?

A
204
B
193
C
199
D
186
Question 3275
GK

Which metal was extensively used for coinage in the Mauryan Empire?

A
Gold
B
Iron
C
Silver
D
Copper