RRB JE 2024-16-12-2024-1 RRB Question Paper

RRB JE 2024-16-12-2024-1 RRB Questions

31.
In a certain code language, 'soldier protect country' is coded as 'lu mh na', 'entrepreneur prosper country' is coded as 'na ki tu' and 'soldier entrepreneur vital' is coded as 'mh tu sy'. What is the possible code for 'country vital' in that language?
A.
na sy
B.
mh na
C.
sy ki
D.
tu na
ANSWER :
A. na sy
32.
A conical tent has to accommodate 30 persons. Each person must have 5 mΒ² spaces on the ground and 120 mΒ³ of air to breathe. Find the height (in m) of the tent.
A.
64
B.
60
C.
84
D.
72
ANSWER :
D. 72
33.
A number when increased by 50%, gives 2820. The number is:
A.
3760
B.
940
C.
1880
D.
5640
ANSWER :
C. 1880
34.
What is the process by which sodium hydroxide is prepared?
A.
Solvay's process
B.
Chlor-alkali process
C.
Haber's process
D.
Contact process
ANSWER :
B. Chlor-alkali process
35.
In a series combination of resistors, how is the voltage distributed across each resistor?
A.
The same across all resistors
B.
Unaffected by resistance values
C.
Inversely proportional to resistance
D.
Directly proportional to resistance
ANSWER :
D. Directly proportional to resistance
36.
The length of each of the two equal sides of an isosceles triangle is 100 cm each and the length of its base is 56 cm. The area (in cmΒ²) of the triangle is:
A.
2690
B.
2688
C.
2675
D.
2672
ANSWER :
B. 2688
37.
Which of the following reactions represents the combustion of methane?
A.
CHβ‚„ + Oβ‚‚ β†’ COβ‚‚ + 2Hβ‚‚O
B.
CHβ‚„ + Hβ‚‚O β†’ CO + Hβ‚‚
C.
CHβ‚„ + Clβ‚‚ β†’ CH₃Cl + HCl
D.
CHβ‚„ + Oβ‚‚ β†’ CO + Hβ‚‚O
ANSWER :
A. CHβ‚„ + Oβ‚‚ β†’ COβ‚‚ + 2Hβ‚‚O
38.
What is the average of all the natural numbers from 1 to 92?
A.
47
B.
46
C.
46.5
D.
47.5
ANSWER :
C. 46.5
39.

Hritik ranked 20th from the bottom and 30th from the top in his class. How many students are there in his class?

A.

45

B.

34

C.

47

D.

49

ANSWER :

D. 49

40.
Which of the following is a method of reproduction in plants, where only a single parent is involved?
A.
Pollination
B.
Asexual reproduction
C.
Fertilisation
D.
Sexual reproduction
ANSWER :
B. Asexual reproduction