Q:

What comes down but never goes up?

Answer

Rain is what only comes down but never goes up.

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10 8454

Q:

which of the following physical quantity is dimensionless

A) angle	B) strain
C) specific gravity	D) all of these

Answer & Explanation Answer: D) all of these

Explanation:

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Filed Under: Physics

21 8448

Q:

The First modern warship built in India in 1952 was

A) INS Goa	B) INS Nilgiri
C) INS Kailash	D) Ins Vikram

Answer & Explanation Answer: B) INS Nilgiri

Explanation:

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Filed Under: General Awareness

34 8447

Q:

During Kargil War, Who was the Indian Army chief of staff ?

A) Ved Prakash Malik	B) Sankar Roy Chowdary
C) Nirmal chandar Vij	D) Sundar rajan Padmanabhan

Answer & Explanation Answer: A) Ved Prakash Malik

Explanation:

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Filed Under: World History

37 8443

Q:

One of the best known tribal rebellions in Bihar, Known as Ulgulan (meaning Great Tumult), was launched by the Mundas under the leadership of:

A) Kanhu	B) Sidhu
C) Birsa Munda	D) Rampa Munda

Answer & Explanation Answer: C) Birsa Munda

Explanation:

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Filed Under: Indian History

9 8434

Q:

A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of

A) 18 m/s	B) 25 m/s
C) 30 m/s	D) 36 m/s

Answer & Explanation Answer: C) 30 m/s

Explanation:

The interval between object pass the same point is 4 sec.

That means in 2 sec, object reaches the top and in next 2 sec, it again reaches the same point.

By the info given, we can find the velocity of that point by using : v=u+(-gt)

0= u - 10×2

u = 20

Then the velocity at 25m is 20m/sec.

so the initial velocity is

$- v^{2} = u^{2} + (- 2 gh) 400 = u^{2} - 2 x 10 x 25 u^{2} = 900 = > u = 30 m / s$

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8 8432

Q:

What symbol is used to enter number as text?

A) =	B) "
C) '	D) _

Answer & Explanation Answer: C) '

Explanation:

Apostrophe(‘) symbol is used before a number to make it a text or label.

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26 8431

Q:

When is a system in safe state?

Answer

The set of dispatchable processes is in a safe state if there exists at least one temporal order in which all processes can be run to completion without resulting in a deadlock.

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