Exams Questions and Answers

Q:

An example of Full Duplex communication channel.

A) Radio Broadcasting	B) Television Broadcasting
C) Walkie-Talkie	D) Telephone conversation

Answer & Explanation Answer: D) Telephone conversation

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams

61 8215

Q:

Who wrote the social contract?

A) Jean-Jacques Rousseau	B) Immanuel Kant
C) John Locke	D) Voltaire

Answer & Explanation Answer: A) Jean-Jacques Rousseau

Explanation:

Jean-Jacques Rousseau (1712–1778), in his influential 1762 treatise The Social Contract, outlined a different version of social contract theory, as the foundations of political rights based on unlimited popular sovereignty.

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Filed Under: Books and Authors
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5 8215

Q:

The difference between circumference and semidiameter of a circle is 37 cm. What is the diameter of the circle ?

A) 18 cm	B) 12 cm
C) 16 cm	D) 14 cm

Answer & Explanation Answer: D) 14 cm

Explanation:

circumference of a circle = 2 $π$ r

=> 2 × 22/7 × r – r = 37

=> 37/7 × r = 37

=> r = 7 cm.

Diameter D = 2r = 7×2 = 14 cm.

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Filed Under: Area
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17 8211

Q:

Permanent hardness of water is due to the presence of ?

A) Calcium sulphate	B) Calcium bicarbonate
C) Sodium bicarbonate	D) Magnesium bicarbonate

Answer & Explanation Answer: A) Calcium sulphate

Explanation:

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Filed Under: Chemistry
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25 8210

Q:

The number of ways in which six boys and six girls can be seated in a row for a photograph so that no two girls sit together is ?

A) 2(6!)	B) 6! x 7
C) 6! x ⁷P₆	D) None

Answer & Explanation Answer: C) 6! x ⁷P₆

Explanation:

We can initially arrange the six boys in 6! ways.
Having done this, now three are seven places and six girls to be arranged. This can be done in ⁷P₆ ways.

Hence required number of ways = 6! x ⁷P₆

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Filed Under: Permutations and Combinations
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6 8202

Q:

A Tank is normally filled in 9 hours but takes four hours longer to fill because of a leak in its bottom. If the tank is full, the leak will empty it in ?

A) 32.5 hrs	B) 29.25 hrs
C) 30.30 hrs	D) 31 hrs

Answer & Explanation Answer: B) 29.25 hrs

Explanation:

Let the leak will empty the tank in x hrs

Then, 1/9 - 1/x = 1/13

x = 29.25 hrs

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Filed Under: Pipes and Cistern
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10 8199

Q:

Who is known as Punjab Kesari?

A) Bhagat Singh	B) Dada Saheb Phalke
C) Lala Lajpat Rai	D) Bal Gangadhar Tilak

Answer & Explanation Answer: C) Lala Lajpat Rai

Explanation:

Lala Lajpat Rai is known as Punjab Kesari.

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Filed Under: General Awareness
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8 8197

Q:

Plants having body that is differentiated into roots, stems and leaves and have specialized tissue for the conduction of water and other substances, fall in which group?

A) Bryophyta	B) Thallophyta
C) Pteridophyta	D) All option are correct

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