Q:

To eliminate definition duplication, XML Schemas define:

A) an intersection table.	B) global elements.
C) a normalized definition table.	D) None of the above is correct.

Answer & Explanation Answer: B) global elements.

Explanation:

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Q:

Man has...............pairs of salivary glands

A) 4	B) 6
C) 3	D) 8

Answer & Explanation Answer: C) 3

Explanation:

Salivary glands of man are 3 pairs = 6. They are one pair of parotid glands, one pair of submaxillary or submandibular glands and one pair of sublingual glands.

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Filed Under: Biology

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Q:

Which one of the following is not true for minerals?

A) they can be a liquid, solid, or glass	B) they can be identified by characteristic physical properties
C) they have a specific, internal, crystalline structure	D) they have a specific, predictable chemical composition

Answer & Explanation Answer: A) they can be a liquid, solid, or glass

Explanation:

A mineral is a naturally occurring, inorganic solid, with a definite chemical composition. They cannot be in liquid or gas state. They exists only in solid state.

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Q:

Which of the following metal is generally used for making filaments of bulb?

A) W	B) Ag
C) Fe	D) Rh

Answer & Explanation Answer: A) W

Explanation:

W is the symbol for chemical element Tungsten or Wolfram.

It is used in making filaments of bulbs.

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Q:

Energy is measured in units called

A) Newtons	B) Watts
C) Joules	D) Ohm/mtr

Answer & Explanation Answer: C) Joules

Explanation:

Energy is measured in units called Joules.

Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.

1 Joule = 10⁷ ergs or 0.7377 foot-pounds.

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Q:

What is the name of the World's smallest republic which has an area of 21 sq.km.?

A) Palermo	B) Nauru
C) Vatican City	D) Namur

Answer & Explanation Answer: B) Nauru

Explanation:

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Q:

In electro - magnetic radiation, which of the following has greater wave - length than visible light

A) Ultra -violet rays	B) Infra - red rays
C) Cosmic rays	D) x-rays

Answer & Explanation Answer: B) Infra - red rays

Explanation:

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Q:

In the context of memory management, what are placement and replacement algorithms?

Answer

Placement algorithms determine where in available real-memory to load a program. Common methods are first-fit, next-fit, best-fit. Replacement algorithms are used when memory is full, and one process (or part of a process) needs to be swapped out to accommodate a new program. The replacement algorithm determines which are the partitions to be swapped out.

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