RRB Group D 2018-8-10-2018-2 RRB Question Paper

RRB Group D 2018 Question Papers

RRB Group D 2018-8-10-2018-2 RRB Questions

21.
A person driving at a speed of 42 km/h reaches office 1 minute early, whereas if driving at a speed of 36 km/h, the person reaches office 3 minutes late. What is the distance (in km) that the person is covering?
A.
15.4
B.
16.8
C.
12.9
D.
18.2
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ANSWER :
B. 16.8
22.
Which of the two conclusions can be concluded on basis of given statements?
Statement:
All parrots are camels.
All camels are wolves.
Conclusions:
1. Some parrots are not wolves
2. Some wolves are parrots
A.
Either (1) or (2) follows
B.
Neither (1) nor (2) follows
C.
Only (1) follows
D.
Only (2) follows
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ANSWER :
D. Only (2) follows
23.
15 experts can do as much work as 25 trainees in a given period of time. A piece of work is to be done by 8 experts and 15 trainees. How many trainees alongside 11 experts would one need to complete a similar work in the same duration of time?
A.
10
B.
9
C.
11
D.
12
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ANSWER :
A. 10
24.

Which of the following statements is/are true?
A. Rigidity: It is the property of matter to maintain its shape even if external force work on it and solids show this property.
B. Fluidity: It is the property of a substance to easily flow and allow change in its shape under external forces and this property is exhibited both by liquids and gasses.

A.

Only A is true

B.

A and B both are true

C.

A and B both are false

D.

Only B is true

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ANSWER :

B. A and B both are true

25.

While white washing, Ca(OH) 2 reacts slowly with CO 2 in air to form a thin layer of _____ on the walls.

A.

CaO

B.

CaSO 4

C.

CaCl 2

D.

CaCO 3

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ANSWER :

D. CaCO 3

26.
Who was included in Badminton association of India's coach panel in 2017?
A.
Saina Nehwal
B.
PV Sindhu
C.
KM Anisha
D.
Jwala Gutta
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ANSWER :
D. Jwala Gutta
27.
Who among the following is the current prime minister of China?
A.
Xi Jinping
B.
Li Keqiang
C.
Hu Jintao
D.
Wang Qishan
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ANSWER :
B. Li Keqiang
28.

Choose the best suitable Venn diagram for the following words:
“Flowers, Fruits, Leaves”

A.

B.

C.

D.

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ANSWER :

A.

29.

If the roots of the quadratic equation x 2 + kx + 9 are equal, then find the value of K?

A.

81

B.

± 8

C.

± 6

D.

\( \frac{1}{81} \)

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ANSWER :

C. ± 6

30.
In _______, each carbon atom is bonded to four other carbon atoms forming a rigid three dimensional structure
A.
Graphite
B.
Ethane
C.
Diamond
D.
Methane
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ANSWER :
C. Diamond