Questions

Q:

Who is the inventor of railway engine?

A) George Stephenson B) W.H.F Talbot
C) Richard Trevithik D) Eli Whitney
 
Answer & Explanation Answer: C) Richard Trevithik

Explanation:
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Filed Under: Inventions

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Q:

What is Kerberos?

Answer

It is an authentication service developed at the Massachusetts Institute of Technology. Kerberos uses encryption to prevent intruders from discovering passwords and gaining unauthorized access to files.

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Subject: Networking
Job Role: Network Engineer

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Q:

The Attorney-General of India is appointed by________

A) The president of India B) The Prime Minister
C) The Chief Justice of India D) The UPSC
 
Answer & Explanation Answer: A) The president of India

Explanation:
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Filed Under: Indian Politics

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Q:

Who Invented the First Adhesive Tape ?

A) Richard GurleyDrew B) Alexander Graham Bell
C) James Rineose D) Caresse Crosby
 
Answer & Explanation Answer: A) Richard GurleyDrew

Explanation:
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Filed Under: Inventions

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Q:

"Light years" is the unit of _____?

A) Acceleration B) Distance
C) Light Intensity D) Weight
 
Answer & Explanation Answer: B) Distance

Explanation:

A Light-year is a distance that light travels in the vacuum in one Julian year (365.25 days).

The light-year is a unit of length used to express astronomical distances. It is about 9.5 trillion kilometers or 5.9 trillion miles. 

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

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Q:

Which object, initially called the 'Whirlwind', was invented by Ives McGaffey in 1869 ?

A) Washing machine B) Electric mixer
C) Vacuum cleaner D) Blender
 
Answer & Explanation Answer: C) Vacuum cleaner

Explanation:
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Filed Under: Inventions

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Q:

Water always contains hydrogen and oxygen in the ratio 1:8 by weight.This is in accordance with the 

A) Law of Multiple Proportions B) Law of Definite Proportion
C) Law of Conservation of mass D) Law of Reciprocal Proportions
 
Answer & Explanation Answer: B) Law of Definite Proportion

Explanation:

The Law of Definite Proportion states that the same compound, wherever found or however made, always contains the same elements combined together in the same fixede ratio by weight.

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Filed Under: Chemistry

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Q:

When two similar sources vibrate with slightly different frequencies , a regular rise and fall occurs in the loudness of tone. This phenomenon is known as 

A) doppler effect B) beats
C) resonance D) echo
 
Answer & Explanation Answer: B) beats

Explanation:

Beats means the periodic increase and decrease in loudness heard when two notes of nearly the same frequency are sounded simultaneously.

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Filed Under: Physics

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