RRB Group D 2019 Previous Year Paper (02-Sep-2022) (Shift 1)

Question 1

Select the number from among the given options that can replace the question mark (?) in the following series. 1, 2, 11, 36, 85, ?, 287

Accepted Answer

166

Answer

184

Answer

168

Answer

90

Question 2

A ray of light is incident on a refracting surface AB of a glass prism, kept in air, and emerges out of the other refracting surface AC. Consider the following statements:
(a) The angle of refraction at surface AB is less than the angle of incidence.
(b) The angle of refraction at the surface AC is more than the angle of incidence.
Which of the above statements is/are correct?

Accepted Answer

Both (a) and (b)

Answer

Neither (a) nor (b)

Answer

Only (b)

Answer

Only (a)

Question 3

The sum of two consecutive multiples of 6 is 66. Find the smaller of these two multiples.

Accepted Answer

30

Answer

36

Answer

24

Answer

42

Question 4

This question is based on the five, three-digit numbers given below.
(Left) 429 847 922 213 757 (Right)
(Example: 697- first digit = 6, second digit = 9, third digit = 7)
NOTE: All operations to be done from left to right.
If all the numbers are arranged in descending order, the position of how many numbers will remain unchanged?

Accepted Answer

1

Answer

2

Answer

3

Answer

0

Question 5

Which of the following statements is correct?

Accepted Answer

Enzymes, bacteria or other saprophytes act on biodegradable substances and decompose them.

Answer

Biodegradable substances persist for a long time in the environment.

Answer

Non-biodegradable substances cannot be decomposed by physical processes like heat and pressure.

Answer

Non-biodegradable substances help the various members of the ecosystem.

RRB Group D 2019 Previous Year Paper (02-Sep-2022) (Shift 1)

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