Q:

An example of longitudinal waves (in gas as a medium) is ______.

A) heat waves	B) radio waves
C) electromagnetic waves	D) sound waves

Answer & Explanation Answer: D) sound waves

Explanation:

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Filed Under: Physics
Exam Prep: Bank Exams

1 1223

Q:

HEPA filters are used to remove microbes from

A) human tissues	B) air
C) medical instruments	D) liquids

Answer & Explanation Answer: B) air

Explanation:

High-efficiency particulate air (HEPA), also known as high-efficiency particulate absorbing and high-efficiency particulate arrestance, is an efficiency standard of air filter.

hepa-filters1596516018.png image

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Swarna Jayanti Gram Swarojgar Yojna has now been restructured as

A) Prime Minister's Rojgar Yojna	B) National Rural Livelihoods Mission
C) Jawahar Gram Samriddhi Yojana	D) Sampoorna Gramin Rojgar Yojana

Answer & Explanation Answer: B) National Rural Livelihoods Mission

Explanation:

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Filed Under: Indian Politics
Exam Prep: Bank Exams

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Q:

Where is the Indian National Rail Museum situated?

A) Delhi	B) Uttar Pradesh
C) Punjab	D) Himachal Pradesh

Answer & Explanation Answer: A) Delhi

Explanation:

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Filed Under: Famous Places

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Q:

If ${(x + \frac{1}{x})}^{2} = 3$ , then the value of $x^{3} + \frac{1}{x^{3}}$ is:

A) 0	B) 1
C) 2	D) -1

Answer & Explanation Answer: A) 0

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be:

A) π:1	B) 1:π
C) π2:1	D) 1:π

Answer & Explanation Answer: A) π:1

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

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Q:

Who proposed five kingdom classification?

A) Ernst Mayr	B) R. H. Whittaker
C) M. W. Beijerinck	D) 4) D. I. Ivanovsky

Answer & Explanation Answer: B) R. H. Whittaker

Explanation:

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Filed Under: Indian History
Exam Prep: AIEEE , Bank Exams , CAT

0 1223

Q:

Who invented first working laser?

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

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