Q:

Which one of the following is not a semiconductor?

A) Silicon	B) Germanium
C) Quartz	D) Gallium arsenide

Answer & Explanation Answer: C) Quartz

Explanation:

Semiconductors are the basic materials used in the present solid state electronic devices like diode, transistor, ICs, etc. 2. Lattice structure and the atomic structure of constituent elements decide whether a particular material will be insulator, metal or semiconductor. Semiconductors are elemental (Si, Ge) as well as compound (GaAs, CdS, etc.). Silicon, Germanium, Gallium Arsenide are semiconductors, but Quartz is an insulator.

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

What is used to prevent freezing of fuel in space crafts?

A) Benzene	B) Glycol
C) Acetylene	D) Ester

Answer & Explanation Answer: B) Glycol

Explanation:

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Q:

An element A forms an oxide with formula A3O4. What is the valency of element A?

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

Answer & Explanation Answer: D) 4

Explanation:

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Q:

The property of metal by which it can be drawn into wires is called _____________.

A) maleability	B) viscosity
C) ductility	D) tensile strength

Answer & Explanation Answer: C) ductility

Explanation:

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Filed Under: Physics
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Q:

Who is known as the 'Father of Indian Unrest'?

A) Anant Singh	B) Bal Gangadhar Tilak
C) Bhagat Singh	D) Dadabhai Naoroji

Answer & Explanation Answer: B) Bal Gangadhar Tilak

Explanation:

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Filed Under: Famous Personalities
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Q:

Rahul’s salary is 40% of Mohit’s salary. If Rahul’s salary is increased by 60% and Mohit’s salary is decreased by 20%, then Rahul’s salary will be how much percentage of Mohit’s salary?

A) 80	B) 100
C) 105	D) 64

Answer & Explanation Answer: A) 80

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

Name something switzerland is famous for

A) Apples	B) Alps
C) Aeroplanes	D) Water falls

Answer & Explanation Answer: B) Alps

Explanation:

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Filed Under: World Geography
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Q:

In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

Of the first water

A) Leading a comfortable life	B) Acting contrary to the one’s interests
C) Critically important	D) Of the best quality

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