Questions

Q:

Which of the following is not a method of estimating national income?

A) Expenditure method B) Output method
C) D) Matrix method
 
Answer & Explanation Answer: C)

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Filed Under: General Awareness
Exam Prep: Bank Exams

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Q:

"World Economic Outlook" report is published by which of the following ?

A) IMF B) World Bank
C) RBI D) UNCTAD
 
Answer & Explanation Answer: A) IMF

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Q:

Marble comes under which category of rocks?

A) Sedimentary B) Igneous
C) Metamorphic D) None of these
 
Answer & Explanation Answer: C) Metamorphic

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Filed Under: General Science
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Q:

Which layer of the earth's atmosphere contains the ozone layer?

A) Troposphere B) Mesosphere
C) Ionosphere D) Stratosphere
 
Answer & Explanation Answer: D) Stratosphere

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Filed Under: General Science
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Q:

Which of the following schemes is NOT related to the DigitalIndia?

A) Digital Locker B) e-education
C) e-health D) National Scholarship Portal
 
Answer & Explanation Answer: D) National Scholarship Portal

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Filed Under: Indian Politics
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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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Q:

Which of the following is false with reference to a photo-voltaic cell?

A) It is another name as solar cell B) It can be used as infra-red detectors
C) It can store light energy in the form of electrical energy D) It converts electric energy into light energy
 
Answer & Explanation Answer: D) It converts electric energy into light energy

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Q:

Work done by a passenger standing on a platform holding a suitcase weighing 10kg is

A) 980 J B) 98 J
C) 0 J D) 100 J
 
Answer & Explanation Answer: C) 0 J

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Filed Under: Physics
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