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Q:

What is the range of frequencies of sound waves audible to human beings?

A) 16kHz to 200kHz B) 16Hz to 16kHz
C) 16Hz to 20kHz D) 14Hz to 20kHz
 
Answer & Explanation Answer: C) 16Hz to 20kHz

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Filed Under: Physics
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Q:

Why does a sprinter keep running even after crossing the finishing line?

A) He wants to make sure that he crosses the line B) Inertia of rest takes some time to make him stop
C) Inertia of motion keeps him moving D) Friction between his shoes and the ground causes him to move beyond the line
 
Answer & Explanation Answer: C) Inertia of motion keeps him moving

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Filed Under: Physics
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Q:

Which one of the following is the largest source of natural energy to humans?

A) Plants B) Earth
C) Animals D) Sun
 
Answer & Explanation Answer: D) Sun

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Filed Under: General Science
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Q:

Who wrote 'Nyaya Sutra'?

A) Vyasa B) Gautam
C) Kapila D) Charaka
 
Answer & Explanation Answer: B) Gautam

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Filed Under: Books and Authors

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Q:

In the following question, select the number which can be placed at the sign of ? from the given alternatives.

A) 11 B) 16
C) 21 D) 31
 
Answer & Explanation Answer: A) 11

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Filed Under: Verbal Reasoning - Mental Ability

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Q:

Who took over as the new CEO of IT giant Infosys at the beginning of 2018?

A) Raghuram Rajan B) Vishal Sikka
C) Rohan Murthy D) Salil Parekh
 
Answer & Explanation Answer: D) Salil Parekh

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Filed Under: Famous Personalities
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Q:

Which of the following is not correct with reference to Bio-sand Water Filter?

A) It deactivates or kills pathogens B) Sedimentation removes larger particles
C) Filtration removes smaller particles D) High quality water is always assured
 
Answer & Explanation Answer: D) High quality water is always assured

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Filed Under: Chemistry
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Q:

Which leukocyte is responsible for antibody production?

A) Monocyte B) T-Cells
C) B Lymphocyte D) Basophil
 
Answer & Explanation Answer: C) B Lymphocyte

Explanation:

Leukocyte, commonly known as a white blood cell (WBC), is a major component in protecting the body against invading microorganisms and body cells with mutated DNA, and they clean up debris. 

B Lymphocyte also called as B-Cells or plasma cells produces the antibodies or immunoglobulins that bind to specific foreign or abnormal components of plasma membranes. This is also referred to as humoral (body fluid) immunity.

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Filed Under: Biology
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