Questions

Q:

Magnetite is an ore/mineral of

A) Beryllium B) Chromium
C) Iron D) Lead
 
Answer & Explanation Answer: C) Iron

Explanation:
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Q:

Which drug is used as an Anti-Inflammatory?

A) Metformin B) Diazepam
C) Latanoprost D) Prednisone
 
Answer & Explanation Answer: D) Prednisone

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Q:

Which blood group is universal donor?

A) O+ B) O–
C) AB– D) AB+
 
Answer & Explanation Answer: B) O–

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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.


Democracy should _____ dignity of the individual. It should also aim at the _____ good of the greatest _____. The opposition party should _____ the wrong plans,
policies and decisions of the government in power. The government should cater to the _____ needs of the people to make its position solid.


of the greatest _____. The opposition party

A) people B) digit
C) number D)  individual
 
Answer & Explanation Answer: C) number

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Q:

Atomic number of which of the following elements is greater than that of Magnesium

A) Neon B) Fluorine
C) Sodium D) Aluminium
 
Answer & Explanation Answer: D) Aluminium

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Q:

What happens as we go down the group in the periodic table?

A) The number of shells decreases B) Valence electrons decreases
C) The number of shells increases D) Atomic size decreases
 
Answer & Explanation Answer: C) The number of shells increases

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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

 

Ravi Shankar's performance was given (A)/ a standing ovation by the (B)/ people who has come to hear him. (C)/ No Error (D)

 

A) A B) B
C) C D) D
 
Answer & Explanation Answer: C) C

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Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic. B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave. D) Longitudinal waves can travel in all media-solids, liquids and gases.
 
Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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