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Q:

Speed of sound is maximum in which among the following?

A) Gases	B) Vaccum
C) Liquids	D) Solids

Answer & Explanation Answer: D) Solids

Explanation:

We know that, in solids all the particles are packed together and hence sound can travel from one to one very fast.

Hence, speed of sound is maximum in solids and decreses from solids to liquids and liquids to gases. Sound can't travel through vaccum.

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Filed Under: Physics
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Q:

Where does digestion of protein begin?

A) Mouth	B) Pharynx
C) Stomach	D) Liver

Answer & Explanation Answer: C) Stomach

Explanation:

Three main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.

Hence, digestion of protein begin in stomach.

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Filed Under: Biology
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Q:

Where is excess glucose stored?

A) Blood	B) Liver
C) Heart	D) Kidneys

Answer & Explanation Answer: B) Liver

Explanation:

Glucose is essential for energy in all the living organisms. When we have more glucose than needs in our bloodstream, then the excess glucose is stored as large compounds as Glycogen. This glycogen fills the cells of the liver and available for any quick shots of energy.

Hence, Liver is called as warehouse for the excess glucose.

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Filed Under: Biology
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Q:

Find the next number in the given sequence?

11, 17, 39, 85, ?

A) 133	B) 143
C) 153	D) 163

Answer & Explanation Answer: D) 163

Explanation:

Her the given number series is 11, 17, 39, 85, ?

$11 11 + (3^{2} - 3) = 17 17 + (5^{2} - 3) = 39 39 + (7^{2} - 3) = 85 85 + (9^{2} - 3) = 163$

Hence, the next number in the given sequence is 163.

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Filed Under: Number Series
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Q:

A card is drawn from a pack of 52 cards. What is the probability that either card is black or a king?

A) 15/52	B) 17/26
C) 13/17	D) 15/26

Answer & Explanation Answer: D) 15/26

Explanation:

Number of cards in a pack of cards = 52

Number of black cards = 26

Number of king cards = 4 (2 Red, 2 Black)

Required, the probability that if a card is drawn either card is black or a king =

$\frac{26}{52} + \frac{4}{52} = \frac{30}{52} = \frac{15}{26}$

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Filed Under: Permutations and Combinations
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Q:

Which half reaction correctly represents reduction?

A) Fe2+ + e- ---> Fe3+	B) Au3+ + 3e– ---> Au
C) Ag ---> Ag+ + e-	D) All of the above

Answer & Explanation Answer: B) Au3+ + 3e– ---> Au

Explanation:

A half reaction is either the oxidation or reduction reaction component of a redox reaction. A half reaction is obtained by considering the change in oxidation states of individual substances involved in the redox reaction.

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Filed Under: Chemistry
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Q:

What type of map is best suited for maritime navigation?

A) Mercator projection	B) Conic projection
C) Geologic	D) Topographic

Answer & Explanation Answer: A) Mercator projection

Explanation:

Mercator projection type of maps are best suited for maritime navigations.

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Filed Under: Indian Geography
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Q:

Which of these lines contains a metaphor?

A) You light up my life.	B) She was fishing for compliments.
C) He broke my heart.	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

A metaphor is a figure of speech that is used to make a comparison between two things that aren't alike but do have something in common.

In all the given options we have Metaphors.

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Filed Under: English
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