RRB JE 2019-26-05-2019-3 RRB Question Paper

RRB JE 2019 Question Papers

RRB JE 2019-26-05-2019-3 RRB Questions

1.
Simplify: (√6 - 2√3)²
A.
18 + 2√12
B.
18 - 2√12
C.
18 + 12√2
D.
18 - 12√2
😑 View Answer Rough Work
ANSWER :
D. 18 - 12√2
2.
Which agent produces a local or general loss of sensation?
A.
Anaesthetic
B.
Oxygen
C.
Glucose
D.
Blood
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ANSWER :
A. Anaesthetic
3.
According to Mendeleev's periodic law, the elements were arranged in the periodic table in the order of-
A.
Increasing atomic masses
B.
Decreasing atomic masses
C.
Decreasing atomic number
D.
Increasing atomic number
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ANSWER :
A. Increasing atomic masses
4.
In the given figure, the circle represents educated, rectangle represents unemployed, and square represents villagers.
Which region represents villagers and educated but not an unemployed?
A.
2
B.
3
C.
4
D.
1
😑 View Answer Rough Work
ANSWER :
D. 1
5.
Lactose is composed of _____ and glucose.
A.
Fructose
B.
Sucrose
C.
Galactose
D.
Maltose
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ANSWER :
C. Galactose
6.
What is the LCM of 6(xy - y), 8 (x⁴y - xy)?
A.
24 xy (x³ - 1)
B.
(x³ - 1) xy
C.
24 (x³ - 1)
D.
24 xy
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ANSWER :
A. 24 xy (x³ - 1)
7.
Find the smallest three-digit number that is exactly divisible by 12, 15 and 24.
A.
360
B.
120
C.
180
D.
240
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ANSWER :
B. 120
8.
Simplify: cos(30° - A) - cos(30° + A)
A.
cos A
B.
(1/2)sinA
C.
sin A
D.
2sinA
😑 View Answer Rough Work
ANSWER :
C. sin A
9.
Sound travels in a medium as a-
A.
Straight line
B.
Series of compressions and rarefactions
C.
Beam
D.
Particle
😑 View Answer Rough Work
ANSWER :
B. Series of compressions and rarefactions
10.
The reaction of sodium sulphate and barium chloride solution is an example of-
A.
Double displacement reaction
B.
Endothermic reaction
C.
Single displacement reaction
D.
Exothermic reaction
😑 View Answer Rough Work
ANSWER :
A. Double displacement reaction