Q:

Who invented first working laser?

A) A. H. Taylor	B) W. K. Roentgen
C) T. H. Maiman	D) Fred Morrission

Answer & Explanation Answer: C) T. H. Maiman

Explanation:

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Filed Under: Inventions
Exam Prep: Bank Exams

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Q:

The largest estuarine mangrove forest in the world is at?

A) Sundarbans National Park	B) Nanda Devi and Valley of Flowers National Parks
C) Keoladeo National Park	D) Manas Wildlife Sanctuary

Answer & Explanation Answer: A) Sundarbans National Park

Explanation:

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Filed Under: Indian Geography
Exam Prep: Bank Exams

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Q:

Read the sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. If the given sentence is correct as it is, the answer is ‘No error’. Ignore the errors of punctuation, if any.

There is no one/ I have met or heard of/ whom I can consider knowledgeable/ than my English teacher.

A) There is no one	B) I have met or heard of
C) Whom I can consider knowledgeable	D) Than my English teacher

Answer & Explanation Answer: C) Whom I can consider knowledgeable

Explanation:

The error lies in the third part of the sentence. Use of 'than' suggests that the sentence makes a comparison between two people. In such a case comparative degree is used before the adjective. Therefore, more should be written before knowledgeable

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Filed Under: English

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Q:

On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because ________

A) Mercury is a metal	B) Density of mercury is greater than that of water
C) Cohesion of mercury is greater than its adhesion with glass	D) Cohesion of water is greater than its adhesion with glass

Answer & Explanation Answer: C) Cohesion of mercury is greater than its adhesion with glass

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

The salt concentration (measured as salinity in parts per thousand), is _______ % in sea.

A) 10-20	B) 30-35
C) 40-50	D) 60-70

Answer & Explanation Answer: B) 30-35

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

Acids that contain Hydrogen and other non-metallic element(s), except Oxygen, are called

A) Hydracids	B) Dilute acids
C) Strong acids	D) Weak acids

Answer & Explanation Answer: A) Hydracids

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

What does indifference curve represent?

A) Levels of Income and Capital	B) Satisfaction derived from two goods
C) Income from two businesses	D) Relationship between expenditure and savings

Answer & Explanation Answer: B) Satisfaction derived from two goods

Explanation:

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Filed Under: Indian Economy
Exam Prep: Bank Exams

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Q:

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

You see a curtain of fog (hanged) low, suspended over the fresh green grass.

A) hangs	B) were hang
C) hanging	D) no improvement

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