RRB ALP 2018-29-08-2018-2 RRB Question Paper

RRB ALP 2018 - Technicians Question Papers

RRB ALP 2018-29-08-2018-2 RRB Questions

41.

Which of the following is not a double displacement reaction?

A.

NaOH + HCl → NaCl + H2O

B.

BaCl2 + H2SO4 → BaSO4 + 2HCl

C.

CuSO4 + H2S → CuS + H2SO4

D.

Mg3N2 + 6H2O → 3Mg(OH)2+ 2NH3

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ANSWER :

D. Mg3N2 + 6H2O → 3Mg(OH)2+ 2NH3

42.
Which of the following is NOT true for the reaction of Calcium with water?
A.
The reaction is less violent
B.
Calcium starts floating
C.
Heat evolved is less
D.
H2 gas is evolved
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ANSWER :
A. The reaction is less violent
43.
Choose the word which is least like the other words in the group?
A.
Squirrel
B.
Crow
C.
Monkey
D.
Duck
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ANSWER :
D. Duck
44.

Select the option that represents the number of triangles in the given figure.

A.

16

B.

14

C.

18

D.

17

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ANSWER :

C. 18

45.
In the usual set notation, A U (B ∩ C) =
A.
(A U B) ∩ (A U C)
B.
(A U B) U (A U C)
C.
(A U B) ∩ (A ∩ C)
D.
(A ∩ B) U (A ∩ C)
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ANSWER :
A. (A U B) ∩ (A U C)
46.
A convex lens has a focal length of 50 cm. Calculate its power.
A.
1 D
B.
3 D
C.
4 D
D.
2 D
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ANSWER :
D. 2 D
47.
Which of the following are bad conductors of electricity?
A) Mica and Quartz
B) Metals and Rubber
C) Metals and Mica
A.
B and C only
B.
A only
C.
A and C only
D.
A and B only
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ANSWER :
B. A only
48.

If 3tanθ=2, find the value of \(\frac{2\sin\theta-\cos\theta}{2\cos\theta-\sin\theta}\)

A.

0

B.

\( \frac{1}{3} \)

C.

\( \frac{1}{4} \)

D.

\( \frac{1}{3} \)

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ANSWER :

C. \( \frac{1}{4} \)

49.
During combustion of unsaturated compounds a _____ is seen:
A.
red flame
B.
blue flame
C.
clean flame
D.
yellow flame
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ANSWER :
D. yellow flame
50.

The reciprocal of the value of 3 \( \frac{1}{12} \) - [1 - \( \frac{3}{4} \) + {2 \( \frac{1}{2} \)- (1 \( \frac{1}{2} \) - \( \frac{1}{3} \))}] is

A.

\( \frac{2}{3} \)

B.

1

C.

0

D.

2

😑 View Answer Rough Work
ANSWER :

A. \( \frac{2}{3} \)