RRB Group D 2022-23-8-2022-3 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-23-8-2022-3 RRB Questions

21.
Simplify: x² + 5x - 12 - 3(x² - 2x + 9).
A.
2x² - 11x - 39
B.
-2x² + 11x + 39
C.
-2x² + 11x - 39
D.
2x² + 11x - 39
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ANSWER :
C. -2x² + 11x - 39
22.
Which Article of the Indian Constitution specifically mentions, "The official language ofthe Union shall be Hindi in Devanagari script?"
A.
Article 51A
B.
Article 80
C.
Article 343(1)
D.
Article 395
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ANSWER :
C. Article 343(1)
23.
Which of the following numbers will replace the question mark (?) in the given series?
8, 18, 38, 78, 158, ?
A.
306
B.
324
C.
224
D.
318
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ANSWER :
D. 318
24.
What was the main aim of the agreement made by UNEP in 1987?
A.
To stop water pollution
B.
To use more CFCs in fire extinguishers
C.
To stop emission of greenhouse gases
D.
To freeze the production of CFCs at 1986 level
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ANSWER :
D. To freeze the production of CFCs at 1986 level
25.
Consider the below statements and identify the correct answer.
Statement-I: Sodium hydroxide is prepared by chlor-alkali process.
Statement-II: Sodium hydroxide is used for making artificial textile fibres (such as rayon).
A.
Statement-I is true, and Statement-II is false
B.
Both the statements are false.
C.
Statement-II is true, and Statement-I is false.
D.
Both the statements are true.
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ANSWER :
D. Both the statements are true.
26.
Name the app released by the Indian Army for an in-house messaging application for the military sector.
A.
MY IAF
B.
DGNCC
C.
SAI
D.
ASIGMA
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ANSWER :
D. ASIGMA
27.
Consider the below statements and identify the correct answer.
Statement I: Series of compounds in which the same functional group substitutes for hydrogen in a carbon chain is called a homologous series
Statement II: As the molecular mass increases in any homologous series, a gradation in physical properties is seen.
A.
Both the statements are incorrect.
B.
Both the statements are correct.
C.
Statement II is correct, and Statement I is incorrect.
D.
Statement I is correct, and Statement II is incorrect.
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ANSWER :
B. Both the statements are correct.
28.
If x + 1/x = 4, then x2 + 1/x2 = ?
A.
14
B.
16
C.
12
D.
18
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ANSWER :
A. 14
29.
If 23k - 5 = 4096, then the value of k is:
A.
7
B.
17/3
C.
11
D.
16/3
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ANSWER :
B. 17/3
30.
If '+' means '-', '-' means '+', '+' means 'x' and 'x' means '+', what will come in place of the question mark (?) in the following equation?
64 + 32 - 8 × 11 + 3 = ?
A.
39
B.
93
C.
90
D.
35
😑 View Answer Rough Work
ANSWER :
B. 93