RRB JE 2019-25-05-2019-1 RRB Question Paper

RRB JE 2019 Question Papers

RRB JE 2019-25-05-2019-1 RRB Questions

41.
Find the missing number in the following series.
1, 1, 2, (…), 24, 120, 720
A.
8
B.
6
C.
3
D.
2
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ANSWER :
B. 6
42.
Which technique is used to determine the depth of the sea, locate the underwater hills, valleys, submarines, icebergs etc.?
A.
Sound absorption
B.
Infrasound
C.
SONAR
D.
MRI
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ANSWER :
C. SONAR
43.
Which gas is typically produced when metal reacts with acids?
A.
Carbon dioxide
B.
Oxygen
C.
Hydrogen
D.
Nitrogen
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ANSWER :
C. Hydrogen
44.

If cot θ = \( \frac{a}{b} \), then find \(\frac{\cos\theta-\sin\theta}{\cos\theta+\sin\theta}\).

A.

\(\frac{b}{a}\)

B.

\(\frac{a}{b}\)

C.

\(\frac{a^2}{b^2}\)

D.

\(\frac{a-b}{a+b}\)

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ANSWER :

D. \(\frac{a-b}{a+b}\)

45.
A cube has numerically equal surface area and volume. Find the volume of the cube.
A.
162 cubic units
B.
512 cubic units
C.
216 cubic units
D.
276 cubic units
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ANSWER :
C. 216 cubic units
46.
In this question, three statements are given followed by four conclusions. Choose the conclusion(s) which best fit(s) logically.
Statements:
1) All gold are platinum.
2) Some platinum are silver.
3) All silver are diamonds.
Conclusions:
I. Some diamonds are platinum.
II. Some diamonds are gold.
III. Some silver are gold.
IV. Some platinum are diamonds.
A.
Only conclusions I and III follow
B.
Only conclusion III follows
C.
Only conclusions I and IV follow
D.
Only conclusions I and II follow
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ANSWER :
C. Only conclusions I and IV follow
47.

P, Q and R enter into a partnership investing Rs.35,000, Rs.45,000 and Rs.55,000. Find their respective share in the annual profit of Rs.40,500.

A.

Rs.10,500, Rs.13,500, Rs.18,500

B.

Rs.10,500, Rs.13,500, Rs.19,500

C.

Rs.10,500, Rs.13,500, Rs.17,500

D.

Rs.10,500, Rs.13,500, Rs.16,500

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ANSWER :

D. Rs.10,500, Rs.13,500, Rs.16,500

48.
In Indian history, who was also known as Alamgir?
A.
Akbar
B.
Jahangir
C.
Aurangzeb
D.
Babur
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ANSWER :
C. Aurangzeb
49.
If (x - 1) and (x + 3) are the factors of x² + ax + b, then find the values of 'a' and 'b' respectively.
A.
-2, -3
B.
2, -3
C.
-2, 3
D.
2, 3
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ANSWER :
B. 2, -3
50.
If 53 * 13 = 33, 39 * 13 = 26 and 74 * 26 = 50, then what will be 37 * 21?
A.
29
B.
24
C.
43
D.
37
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ANSWER :
A. 29