Questions

Q:

Which among the following is not correctly matched?

A) Parachute: W H carothers B) Barometer: Torricelli
C) Cells: Robert Hooke D) X- Ray: W Roentgen
 
Answer & Explanation Answer: A) Parachute: W H carothers

Explanation:
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1 2073
Q:

Which period in medieval western Europe is known as 'Dark Ages'?

A) Early Middle Ages B) Late Middle Ages
C) Entire Middle Ages D) Mid Middle Ages
 
Answer & Explanation Answer: A) Early Middle Ages

Explanation:

The Early Middle Ages have often been called the Dark Ages, and to some extent  they were truly dark. The people led a miserable life. Education was very uncommon. The helplessness of the comman man the arbitary rule of the king and the barons and the absence of national unity-all these conditions were common in Europe. The term 'Middle Ages' does not cover a uniform period for all the countries of the world.For Europe and the Westren World , the 'Middle Ages' are generally considered to be the period between AD 500 and AD 1500.

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Filed Under: World History

2 2073
Q:

Which of the following is not true about tape storage?

A) A benefit of tape is that it allows for nonsequential access. B) A benefit of tape is that it allows for sequential access.
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) A benefit of tape is that it allows for nonsequential access.

Explanation:
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2 2073
Q:

Where do arteries carry blood?

A) Heart B) Lungs
C) Tissues D) Brain
 
Answer & Explanation Answer: A) Heart

Explanation:

Arteries carry oxygenated blood away from the heart to the tissues, except for pulmonary arteries, which carry blood to the lungs for oxygenation (usually veins carry deoxygenated blood to the heart but the pulmonary veins carry oxygenated blood as well).

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Filed Under: Biology
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4 2073
Q:

Magnesium is a constituent metal of __________

A) Chlorophyll molecule B) DNA
C) Mitochondria D) Ribosomes
 
Answer & Explanation Answer: A) Chlorophyll molecule

Explanation:
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Filed Under: Chemistry

0 2072
Q:

If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is .......

A) 360C B) 216 C
C) 60 C D) 36 C
 
Answer & Explanation Answer: B) 216 C

Explanation:
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Filed Under: Physics
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0 2072
Q:

The law of conservation of energy states that

A) energy can neither be created nor destroyed B) energy can either be created nor destroyed
C) energy can neither be created or destroyed D) energy can either be created or destroyed
 
Answer & Explanation Answer: A) energy can neither be created nor destroyed

Explanation:

The law of conservation of energy is a law of science which states that energy can neither be created nor destroyed - only converted from one form of energy to another.

In 1842, Julius Robert Mayer discovered the Law of Conservation of Energy.

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Filed Under: Physics
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3 2071
Q:

Which of the following is also known as Carbolic Acid?

A) Hydroxide B) Sulphuric Acid
C) Ethanol D) Phenol
 
Answer & Explanation Answer: D) Phenol

Explanation:

Phenol with a molecular formula [C6H5OH] is also called as Carbolic Acid. It is a white poisonous clear compound with sweet smell. It is used in making plastics, detergents and drugs.

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Filed Under: Chemistry
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12 2071