Questions

Q:

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Lugubrious

A) Clumsy B) Lucid
C) Optimistic D) Sinister
 
Answer & Explanation Answer: C) Optimistic

Explanation:
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Filed Under: English
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Q:

In the following question, four words are given out of which one word is incorrectly spelt. Select the incorrectly spelt word.

A) Familiar B) Grammer
C) Narrator D) Operator
 
Answer & Explanation Answer: B) Grammer

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Q:

Which of the following is not true of color blindness?

A) Color blind people learn to rely on shapes, patterns, and positions of signs and signals. B) Red-green color blindness is the most common type of color blindness.
C) A color blind person cannot see any colors. D) For some people, it might be difficult to recognize colors of traffic lights and signs.
 
Answer & Explanation Answer: C) A color blind person cannot see any colors.

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Filed Under: Biology
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Q:

Which properties are characteristic of the group 1 metals?

A) Low melting points B) Produce hydrogen when react with water
C) Soft in nature D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Group 1 metals are also called as alkali metals with reactive in nature and low melting points. They are soft and produce hydrogen and alkaline metal hydroxide solution when they react with water.

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Filed Under: Chemistry
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Q:

Vinegar is __________ .

A) diluted acetic acid B) glacial acetic acid
C) glacial formic acid D) diluted formic acid
 
Answer & Explanation Answer: A) diluted acetic acid

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Filed Under: Chemistry

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Q:

Through specialization and international trade, a nation

A) will attain some combination of goods lying inside its production possibilities curve B) will shift its production possibilities curve towards left
C) can attain some combination of goods lying outside its production possibilities curve D) will shift its production possibilities curve towards right
 
Answer & Explanation Answer: C) can attain some combination of goods lying outside its production possibilities curve

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Filed Under: Indian Economy
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Q:

Why is argon gas used along with tungsten wire in an electric bulb?

A) To increase the life of the bulb B) To reduce the consumption of electricity
C) To make the emitted light colored D) To reduce the cost of the bulb
 
Answer & Explanation Answer: A) To increase the life of the bulb

Explanation:

Argon gas is used in fluorescent and incandescent light bulbs to stop the oxygen in the light bulbs from corroding the hot tungsten filament.

The use of argon in light bulbs prevents the evaporation of the tungsten filaments, which results in increased light bulb life.

Argon is also used to create an inert atmosphere for growing semiconductor crystals, arc welding and for processes that need protection from other kinds of atmospheric gases.

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Filed Under: Chemistry
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Q:

In the following question, out of the four alternatives, select the word similar in meaning to the word given.

Connoisseur

A) Decisive B) Uncivilised
C) Discerning Judge D) Narrow-minded
 
Answer & Explanation Answer: C) Discerning Judge

Explanation:
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Filed Under: English

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