Questions

Q:

______ is the perpendicular distance between point of application of force and axis of rotation.

A) Moment arm B) Moment of Inertia
C) Altitude D) Base
 
Answer & Explanation Answer: A) Moment arm

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Filed Under: Physics
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Q:

Sound can not travel in which of the following medium?

A) Solid B) Liquid
C) Gas D) Vacuum
 
Answer & Explanation Answer: D) Vacuum

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Q:

Who was the first female emperor of India?

A) Noor Jahan B) Razia Sultana
C) Rani Rudrama Devi D) Queen Didda
 
Answer & Explanation Answer: B) Razia Sultana

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Filed Under: Indian History
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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.

Consider the following statements:

1) The surface area of the sphere is √5 Times the curved surface area of the cone.

2) The surface area of the cube is equal to the curved surface area of the cylinder. Which of the above statements is/are correct?

 

A) 1 only B) 2 only
C) Both 1 and 2  D) Neither 1 nor 2
 
Answer & Explanation Answer: D) Neither 1 nor 2

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)
 
Thus neither 1 nor 2 are true
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Filed Under: English
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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
To exclude from a society or group.

A) to ostracise B) to deport
C) to boycott D) to snub
 
Answer & Explanation Answer: A) to ostracise

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Filed Under: English
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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Be in force

A) To enjoy a short period of fame or power. B) In great strength or numbers.
C) A hateful act done in a haste. D) Be the current winner.
 
Answer & Explanation Answer: B) In great strength or numbers.

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Q:

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

A) coniferous B) coniferos
C) coniferrous D) coniferros
 
Answer & Explanation Answer: A) coniferous

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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

An attractively tall, graceful, and dignified woman

A) Terse B) Pithy
C) Sententious D) Statuesque
 
Answer & Explanation Answer: D) Statuesque

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