Questions

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:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

You have come here with the intention in insulting me.

A) for insulting me B) of insulting me
C) on insulting me D) No improvement
 
Answer & Explanation Answer: B) of insulting me

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.

Donkey's years

A) A decade B) A long time
C) A century D) Since school days
 
Answer & Explanation Answer: B) A long time

Explanation:
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Q:

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

By a single mean act, he _____ out all his good deeds.

A) wiped B) whipped
C) worked D) whisked
 
Answer & Explanation Answer: A) wiped

Explanation:
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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The survey provided the company with a wide __________ of feedback on its products.

A) spectrum B) option
C) choices D) colours
 
Answer & Explanation Answer: A) spectrum

Explanation:
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Q:

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The promise of nuclear power has so __________ outweighed all of these concerns, and India has reason to be proud of its technology and determination to look for non-fossil _______________ in its energy planning. However, _________ rapid progress in technology in other ______________ energy sources such as wind and solar power, the collapse of oil prices and the expansion in gas projects as a viable and clean alternative, that promise ______________.

However, _________ rapid progress in technology

A) to B) from
C) with D) for
 
Answer & Explanation Answer: C) with

Explanation:
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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Leave no stone unturned

A) Search for the hidden treasure B) Do a futile task
C) Be known for achieving a tremendous feat D) Try every possible course of action in order to achieve something
 
Answer & Explanation Answer: D) Try every possible course of action in order to achieve something

Explanation:
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Q:

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.

They had seen enough of the
X-them to come a step farther
Y-desert already, and no number
Z-of knives would have tempted

A) YXZ B) YZX
C) XZY D) XYZ
 
Answer & Explanation Answer: B) YZX

Explanation:
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