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Q:

What will be the value of the kinetic energy (Ek) of a moving body with mass m, if its speed is doubled from v to 2v?

A) 1/2 Ek B) 4 Ek
C) There will be no change in Ek D) 2 Ek
 
Answer & Explanation Answer: B) 4 Ek

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Filed Under: Physics
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Q:

Which factor affects the heart rate in mammals?

A) Need for oxygen B) RBC count in blood
C) Blood type D) All the above
 
Answer & Explanation Answer: A) Need for oxygen

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Filed Under: Biology
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Q:

The ___ has abundant white fibres.

A) cartilage B) ligament
C) tendon D) bone
 
Answer & Explanation Answer: C) tendon

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Filed Under: Biology
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Q:

The credit for classifying the elements on the basis of their atomic masses goes to

A) John Dalton B) John Alexander Reina Newlands
C) Dmitri Mendeleev D) Johann Wolfgang Dobereiner
 
Answer & Explanation Answer: C) Dmitri Mendeleev

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Filed Under: Chemistry
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Q:

To which class does Oxyreductases, transferases, hydrolases belong?

A) Hormones B) Enzymes
C) Proteins D) Vitamins
 
Answer & Explanation Answer: B) Enzymes

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Filed Under: Biology
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Q:

Cholesterol is synthesized by the body mainly in the

A) small intestine B) liver
C) large intestine D) abdomen
 
Answer & Explanation Answer: B) liver

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Filed Under: Biology
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Q:

Which component of the blood transports food, CO2 and nitrogenous waste?

A) WBCs B) Blood platelets
C) RBCs D) Plasma
 
Answer & Explanation Answer: D) Plasma

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Filed Under: Biology
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Q:

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.
"I don't know the answer. Do you"? She asked.

A) She asked me if I knew the answer which she didn't. B) She said that she didn't know the answer and did I know it.
C) She said that she didn't know the answer and asked me if i did. D) She told that she was not knowing the answer but wondered if I know.
 
Answer & Explanation Answer: C) She said that she didn't know the answer and asked me if i did.

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Filed Under: English
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