RRB JE 2024-18-12-2024-1 RRB Question Paper

RRB JE 2024-18-12-2024-1 RRB Questions

31.

Sakshi invested a sum of ₹8,900 at 10% per annum compound interest, compounded annually. If she received an amount of ₹10,769 after n years, the value of n is:

A.

2

B.

2.4

C.

1.60000002384186

D.

3

ANSWER :

A. 2

32.
What would happen to dead plants and animals if decomposers were absent from an ecosystem?
A.
They would be eaten by consumers.
B.
They would quickly turn into soil.
C.
They would persist, and the natural replenishment of soil would be hindered.
D.
They would become producers.
ANSWER :
C. They would persist, and the natural replenishment of soil would be hindered.
33.
Seven boxes, E, F, G, H, T, U and V, are kept one over the other, but not necessarily in the same order. Only two boxes are kept below E. Only one box is kept above T. Only one box is kept between T and U. G is kept immediately below F. V is kept at some place below H. How many boxes are kept between H and F?
A.
Three
B.
One
C.
Two
D.
Four
ANSWER :
D. Four
34.
When was the Indian Remote Sensing Satellite System (IRS) established?
A.
1972
B.
1988
C.
1959
D.
1983
ANSWER :
B. 1988
35.
What should come in place of the question mark (?) in the given series? 18 24 34 40 50 ?
A.
56
B.
57
C.
55
D.
58
ANSWER :
A. 56
36.
Which of the following represents a combination reaction?
A.
CaO + H₂O → Ca(OH)₂
B.
CaCO₃ → CaO + CO₂
C.
2KClO₃ → 2KCl + 3O₂
D.
NaCl + AgNO₃ → AgCl + NaNO₃
ANSWER :
A. CaO + H₂O → Ca(OH)₂
37.
Which of the following combinations would produce a precipitate?
A.
NaOH + FeCl₃
B.
NaOH + Na₂SO₄
C.
NaOH + NaCl
D.
NaCl + KNO₃
ANSWER :
A. NaOH + FeCl₃
38.
A question is given, followed by two statements labelled I and II. Identify which of the statements is/are sufficient to answer the question.
Five people, A, B, C, D and E, have different weights each. Who is the heaviest?
(I) A is heavier than C but lighter than D.
(II) B is not the heaviest and E is not the lightest.
A.
Both Statements I and II put together (and not independently) are sufficient to answer the question.
B.
Data in Statement II alone is sufficient to answer the question, while data in Statement I is not.
C.
Data in Statement I alone is sufficient to answer the question, while data in Statement II is not.
D.
Both Statements I and II put together are not sufficient to answer the question.
ANSWER :
D. Both Statements I and II put together are not sufficient to answer the question.
39.

The average price of three items of furniture is Rs 16,455. If their prices are in the ratio 3:5:7, the price of the cheapest item (in Rs) is:

A.

5,485

B.

3,291

C.

7,679

D.

9,873

ANSWER :

D. 9,873

40.
A copper wire has a resistance of 10 Ω. If it is replaced with a wire of the same material and length but twice the cross-sectional area, its resistance will be ______.
A.
20 Ω
B.
10 Ω
C.
5 Ω
D.
2.5 Ω
ANSWER :
C. 5 Ω