Questions

Q:

Which one of the following elements is involved in the control of water content of the blood?

A) Potassium B) Lithium
C) Rubidium D) Caesium
 
Answer & Explanation Answer: A) Potassium

Explanation:

Aldosterone is a key steroid hormone critical for maintaining salt and water balance. It regulates the concentration of minerals, like sodium and potassium, in the fluid outside your cells. When your sodium levels drop, or potassium levels rise, your body signals your adrenal glands to release aldosterone into your blood. Aldosterone signals your kidneys to reabsorb sodium into the blood, and acts on your sweat glands to reduce sodium loss through sweat.

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Filed Under: Biology
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Q:

The heart is classified as a(n)_____.

A) organ B) system
C) cell D) tissue
 
Answer & Explanation Answer: A) organ

Explanation:
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Filed Under: Biology
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Q:

Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.

 


To avoid the various foolish opinions to which mankind are prone, no superhuman brain is required. A few simple rules will keep you free, not from all errors, but from silly errors. If the matter is one that can be settled by observation, make the observation yourself. Aristotle could have avoided the mistake of thinking that women have fewer teeth than men, by the simple device of asking Mrs. Aristotle to keep her mouth open while he counted. Thinking that you know when in fact you do not is a bad mistake, to which we are all prone. I believe myself that hedgehogs eat black beetles, because I have been told that they do; but if I were writing a book on the habits of hedgehogs, I should not commit myself until I had seen one enjoying this diet. Aristotle, however, was less cautious. Ancient and medieval writers knew all about unicorns and salamanders; not one of them thought it necessary to avoid dogmatic statements about them because he had never seen one of them.

 

The author implies that

 

A) he has never seen hedgehogs eating beetles B) hedgehogs eat only black beetles
C) they do not eat black beetles D) he is writing a book on hedgehogs
 
Answer & Explanation Answer: A) he has never seen hedgehogs eating beetles

Explanation:
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Filed Under: English
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Q:

Instrument for measuring blueness of the sky or ocean is called ___________.

A) Bathymeter B) Ceraunograph
C) Cyanometer D) Barometer
 
Answer & Explanation Answer: C) Cyanometer

Explanation:
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Filed Under: Physics
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Q:

Which among the following Amendment Act is also known as 'Mini Constitution'?

A) 2nd Amendment B) 42nd Amendment
C) 48th Amendment D) 57th Amendment
 
Answer & Explanation Answer: B) 42nd Amendment

Explanation:
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Filed Under: Indian Politics
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Q:

According to 2011 Census figures, which state has recordedthe highest sex ratio?

A) Uttar Pradesh B) Haryana
C) Punjab D) Manipur
 
Answer & Explanation Answer:

Explanation:
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Filed Under: General Awareness
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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Every evening a ____________ of wolves descends into the valley to hunt.

A) pack B) gang
C) company D) herd
 
Answer & Explanation Answer: A) pack

Explanation:
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Filed Under: English
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Q:

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

She has finished writing the article, ______

A) has she? B) isn't it?
C) hasn't she? D) is it?
 
Answer & Explanation Answer: C) hasn't she?

Explanation:
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