Exams


Q:

Magnetite is an ore/mineral of

A) Beryllium B) Chromium
C) Iron D) Lead
 
Answer & Explanation Answer: C) Iron

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Filed Under: Chemistry
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Q:

As per World Health Organization, a pilot program testing the first ever malaria vaccine will begin in ________ in the year 2018.

A) India B) Italy
C) United Kingdom D) Africa
 
Answer & Explanation Answer: D) Africa

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Filed Under: General Awareness
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1 1501
Q:

Under which article, President of India can proclaim constitutional emergency?

A) Article 32 B) Article 349
C) Article 356 D) Article 360
 
Answer & Explanation Answer: C) Article 356

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Filed Under: Indian Politics
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Q:

Point A divides segment BC in the ratio 5:1. Co-ordinates of B are (6 ,-4) and C are (0,8). What are the co-ordinates of point A?

A) (-1 , 6) B) (1 , -6)
C) (-1 , -6) D) (1 , 6)
 
Answer & Explanation Answer: D) (1 , 6)

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Filed Under: Volume and Surface Area
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Q:

Under which Article is the Union Public Service Commission of India established?

A) Article 315 B) Article 250
C) Article 300 D) Article 52
 
Answer & Explanation Answer: A) Article 315

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Filed Under: Indian Politics
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Q:

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.


Democracy should _____ dignity of the individual. It should also aim at the _____ good of the greatest _____. The opposition party should _____ the wrong plans,
policies and decisions of the government in power. The government should cater to the _____ needs of the people to make its position solid.


of the greatest _____. The opposition party

A) people B) digit
C) number D)  individual
 
Answer & Explanation Answer: C) number

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Filed Under: English
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Q:

Minamata disease is a nervous disorder caused by eating fish, polluted with _____

A) Iron B) Mercury
C) Lead D) Nickel
 
Answer & Explanation Answer: B) Mercury

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Filed Under: General Science
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6 1501
Q:

A cube is inscribed in a sphere. A right circular cylinder is within the cube touching all the vertical faces. A right circular once is inside the cylinder. Their heights are same and the diameter of the cone is equal to that of the cylinder.

What is the ratio of the volume of the cube to that of the cylinder ?

A) 4 : 3 B) 21 : 16
C) 14 : 11 D) 45 : 32
 
Answer & Explanation Answer: C) 14 : 11

Explanation:
The top view of the given assembly will look like the figure above
Outermost is the sphere. Inside that there is a cube and within that there is a cone and cylinder with same radius.
Here side of cube = a
Diameter of Sphere = body diagnol = √3 a
Radius of sphere = √3 a/2 =r1
Height of Cylinder = Height of cone = side of cube = a =h
Radius of cylinder = Radius of cone = side of cube/2 = a/2 =r2(as shown in the figure)
VcubeVcylinder = a3πr22h = 14/11
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Filed Under: Volume and Surface Area
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