Q:

The digital computer was developed primarily in

A) USA	B) UK
C) Russia	D) Japan

Answer & Explanation Answer: A) USA

Explanation:

A digital computer accepts, processes and outputs data in digitized forms. The digital computer was developed primarily in Unites States of America.

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Q:

Match the following with the correct response.

(1) W	(A) Nm
(2) kW	(B) $3.6 x 10^{6} J$
(3) 1 kW-h	(C) 1000 W
(4) 1 HP	(D) 746 W

A) 1-D, 2-B, 3-C, 4-A	B) 1-A, 2-B, 3-C, 4-D
C) 1-A, 2-C, 3-D, 4-B	D) 1-A, 2-C, 3-B, 4-D

Answer & Explanation Answer: D) 1-A, 2-C, 3-B, 4-D

Explanation:

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Q:

Computer software can be defined as

A) the interaction between the computer and its database	B) an interface between the computer and the network
C) the computer and its associated equipment	D) the instructions that tell the computer what to do

Answer & Explanation Answer: D) the instructions that tell the computer what to do

Explanation:

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Q:

Which compound contains both ionic and covalent bonds?

A) NaNO3	B) CaSO4
C) NH4Cl	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

Here all the given compounds have both ionic and covalent bonds.

NaNO3 - In Sodium nitrate, Nitrate is covalently bonded as nitrogen is bonded with 3 oxygen atoms. And this nitrate is ionically bonded with sodium.

CaSO4 - In Calcium sulphate, sulphate is covalently bonded as sulphur is bonded with 4 oxygen atoms. And this sulphate is ionically bonded with calcium.

NH4Cl - In Ammonium chloride, ammonium is covalently bonded as nitrogen is bonded with 4 hydrogen atoms. And this ammonium is ionically bonded with chlorine.

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Q:

Which classical dance is famous in Tamil Nadu?

A) Kuchipudi	B) Mohiniattam
C) Bharatanatyam	D) Kathakali

Answer & Explanation Answer: C) Bharatanatyam

Explanation:

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Q:

The absence of law and order

A) Mutiny	B) Rebellion
C) Revolt	D) Anarchy

Answer & Explanation Answer: D) Anarchy

Explanation:

Anarchy is what the absence of law and order i.e, government and freedom of an individual.

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Q:

Which element has similar properties to Beryllium?

A) Manganese	B) Calcium
C) Both A & B	D) Helium

Answer & Explanation Answer: B) Calcium

Explanation:

The elements in the same column will have similar properties. Beryllium is the group II element. Group II elements are magnesium, calcium, strontium, barium and radium. Hence, these show the similar prperties.

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Q:

Rearrange the parts of the sentence in correct order

The last issue

P-can bend policy by virtue of its control over its users
Q-how a powerful monopoly
R-we need to examine is

A) QRP	B) QPR
C) PRQ	D) RQP

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