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Q:

Who invented the mouse of a computer?

A) John Backus B) Charles Babbage
C) Douglas Engelbart D) Simon Colton
 
Answer & Explanation Answer: C) Douglas Engelbart

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Filed Under: Inventions
Exam Prep: Bank Exams

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Q:

Who among the following has been appointed the new Coach of the Indian Cricket team by the BCCI recently?

A) Saurav Ganguly B) Anil Kumble
C) Rahul Dravid D) S. R. Kulkarni
 
Answer & Explanation Answer: B) Anil Kumble

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Filed Under: Sports
Exam Prep: Bank Exams

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Q:

Who was the founder of the Indian Reform Association in 1870?

A) Debendranath Tagore B) Keshab Chandra Sen
C) Rammohan Roy D) Dayanand Saraswati
 
Answer & Explanation Answer: B) Keshab Chandra Sen

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Filed Under: Indian History
Exam Prep: Bank Exams

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Q:

If sinθ+ cosecθ=2, then the value of sin-7∅+cosec7∅ is

A) 27 B) 2-7
C) 2 D) 2-1
 
Answer & Explanation Answer: C) 2

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

In Microsoft Word, under character formatting ___________ makes character stand out by making them bold, Italic or both.

 

A) Size B) Font style
C) Effects D) Font style
 
Answer & Explanation Answer: D) Font style

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Filed Under: Computer
Exam Prep: Bank Exams

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Q:

Warm air is ______.

A) heavier than cold air hence warm air rises up B) lighter than cold air hence warm air moves down
C) lighter than cold air hence warm air rises up D) heavier than cold air hence warm air moves down
 
Answer & Explanation Answer: C) lighter than cold air hence warm air rises up

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

What is the unit of the physical quantity "Capacitance"?

A) weber B) farad
C) tesla D) ohm
 
Answer & Explanation Answer: B) farad

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

The attenuation in optical fibre is mainly due to

A) Scattering B) Absorption
C) Both (a) and (b) D) Neither absorption nor scattering
 
Answer & Explanation Answer: A) Scattering

Explanation:

The reason for transmitting data over optical fibers, is because the speed of data transmission through optical wires are equal to the speed of light. The intense speed of data transfer speed, has lead to the use of optical fibers. The optical fiber uses the technology of transferring light beams, from one end to the other end of optical cables. The attenuation in optical fiber is due to Scattering. The reason why scattering is caused, due to the folding, in the wire.

 

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Filed Under: Physics
Exam Prep: Bank Exams , CAT

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