Questions

Q:

Which of the following is not true about Frictional force?

 

A) Friction is the force which opposes the relative motion of two surfaces in contact B) The force of friction that acts when a body is moving (sliding) on a surface is called sliding friction
C) Friction in machines wastes energy and also causes wear and tear D) Rolling friction is much more than sliding friction, the use of ball bearings in a machine considerably reduces friction
 
Answer & Explanation Answer: D) Rolling friction is much more than sliding friction, the use of ball bearings in a machine considerably reduces friction

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Filed Under: Physics
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Q:

What animal has the worst memory?

A) Dog B) Rat
C) Elephant D) Dolphin
 
Answer & Explanation Answer: C) Elephant

Explanation:

Elephant has worst shortest memory and dolphin has longest memory in the Animal kingdom.

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Filed Under: Animals and Birds
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Q:

Dissolving is best described as

 

A) molecules breaking into ions B) a change from a solid to a liquid
C) breaking covalent bonds D) a mingling of molecules and/or ions
 
Answer & Explanation Answer: D) a mingling of molecules and/or ions

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Filed Under: Chemistry
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Q:

The corner of the cells of collenchyma tissue in plant are thickened due to deposition of _____

A) Lignin and suberin B) Suberin and cutin
C) Cellulose and pectin D) Chitin and lignin
 
Answer & Explanation Answer: C) Cellulose and pectin

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Filed Under: Biology

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Q:

The idea of including the Emergency provisions in the Constitution of India has been borrowed from the

A) Constitution of Canada B) Weimar Constitution of Germany
C) Constitution of Ireland D) Constitution of USA
 
Answer & Explanation Answer: B) Weimar Constitution of Germany

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Filed Under: Indian Politics

69 28898
Q:

What is the heat released by a heating filament rated 20 W when it is kept on for 2 seconds?

 

A) 40 B) 10
C) 80 D) 20
 
Answer & Explanation Answer: A) 40

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Filed Under: Physics
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Q:

IFSC is the short term of

 

A) International Financial System Code B) Indian Financial System Code
C) Inter-bank Financial System Code D) Inter-bank Functional System Code
 
Answer & Explanation Answer: B) Indian Financial System Code

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Filed Under: General Awareness
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Q:

Which are the special proteins in muscles that contract and relax to cause movement?

 

A) Contractile protein B) Receptor protein
C) Structural protein D) Enzymatic protein
 
Answer & Explanation Answer: A) Contractile protein

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Filed Under: Biology
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