General Knowledge Questions

Q:

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

 

Reduce or decrease in speed or intensity

 

A) Expedite B) Slacken
C) Impel D) Spur
 
Answer & Explanation Answer: B) Slacken

Explanation:
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Q:

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

 

Sanguine

 

A) Pale B) Vocalise
C) Buoyant D) Foolish
 
Answer & Explanation Answer: C) Buoyant

Explanation:
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Q:

Which one of the following statements with regard to the Indian Railways is not correct?

A) The Indian rail networks have been developed throughout the Konkan coast. B) There is very low density of railway lines in the Himalayan region.
C) The north Indian plain has a dense network of railway. D) At present, India has the largest railway network in the world
 
Answer & Explanation Answer: D) At present, India has the largest railway network in the world

Explanation:

At   present   US   has   the   largest railway   network   in   the   world. Second is China and third is India.

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Q:

Which one of the following elements is essential for the formation of chlorophyll in green plants?

A) Calcium B) Iron
C) Magnesium D) Potassium
 
Answer & Explanation Answer: C) Magnesium

Explanation:

Forms taken up by plants: Mg++ Functions in plants: a part of the chlorophyll molecule -essential in photosynthesis: related to phosphorus metabolism: large quantities found in seed.Mg deficiency symptoms: Mg is mobile, so symptoms occur first in old leaves; A whitish or yellowish striping effect on grasses.

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Q:

If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths?

A) lUV < lIR < lVIS B) lUV > lVIS > lIR
C) lUV > lIR > lVIS D) lUV < lVIS < lIR
 
Answer & Explanation Answer: D) lUV < lVIS < lIR

Explanation:

Infrared radiation, what we experience as heat when we hold our hand near a warm object, is somewhat longer wavelengths than visible light. Visible light is simply electromagnetic radiation in a range of wavelengths that our eyes are sensitive to. Visible wavelengths range from 0.0007 milimeters for red light, through orange, yellow, green, and blue, to 0.0004 milimeters for violet light. Ultraviolet is shorter wavelengths than violet.

Longer the wavelength,lower the energy

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Q:

Mitochondrial DNA analysis is best suited for

A) analysis in which only a minute quantity of DNA material is available B) Forensic science analysis
C) analysis requiring greater discriminatory power than STR D) All of the above
 
Answer & Explanation Answer: B) Forensic science analysis

Explanation:

Mitochondrial DNA analysis is best suited for Forensic science analysis.

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Q:

______ decreases the rate of setting of cement.

A) Alumina B) Silica
C) Gypsum D) Magnesium oxide
 
Answer & Explanation Answer: C) Gypsum

Explanation:
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Q:

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

A) frothyiest B) frotheist
C) frothyeist D) frothiest
 
Answer & Explanation Answer: D) frothiest

Explanation:
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