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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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:

Sphygmomanometer measures the blood pressure in the

A) Veins	B) Arteries
C) Eyes	D) Synovial

Answer & Explanation Answer: B) Arteries

Explanation:

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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'

1. Each nation aspire to do well
2. but there are glaring economical
3. inequalities between them
4. No error

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

Answer & Explanation Answer: A)

1

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:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

The clandestine copying and distribution of literature banned by the state.

A) Wanton	B) Brazen
C) Flagrant	D) Samizdat

Answer & Explanation Answer: D) Samizdat

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

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