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
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Q:

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

A) B2H6	B) Ne
C) C6H14	D) O3

Answer & Explanation Answer: D) O3

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:

Which neighbouring country of India lies to the south of Lakshadweep islands?

A) Maldives	B) Bangladesh
C) Myanmar	D) Indonesia

Answer & Explanation Answer: A) Maldives

Explanation:

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Q:

A train 240 meters in length crosses a telegraph post in 16 seconds. The speed of the train is?

A) 50 Km/hr	B) 52 Km/hr
C) 54 Km/hr	D) 56 Km/hr

Answer & Explanation Answer: C) 54 Km/hr

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

Andy Murray is associated with which Sport?

A) Lawn Tennis	B) Basketball
C) Formula One	D) WWE

Answer & Explanation Answer: A) Lawn Tennis

Explanation:

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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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Q:

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Invent cock and bull stories

A) Delightful fables	B) Eco-friendly accounts
C) Absurd and unlikely stories	D) Credible tales

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