Q:

Sound travels fastest in

A) Vacuum	B) Air
C) Glass	D) Water

Answer & Explanation Answer: C) Glass

Explanation:

Sound is a mechanical vibration and needs a medium for propagation. The higher the density of the medium, the faster the sound travels. So, sound cannot travel through vacuum.

As the sound travels faster in solids than liquids and gases, sound travels faster in the glass than Air and water.

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Filed Under: Physics
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Q:

Which among following first generation of computers ?

A) Integrated Circuits	B) Magnetic Tape and Transistors
C) Vaccum Tubes and Magnetic Drum	D) All of above

Answer & Explanation Answer: C) Vaccum Tubes and Magnetic Drum

Explanation:

First Generation Vacuum Tubes (1940-1956)

The first computer systems used vacuum tubes for circuitry and magnetic drums for memory

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Filed Under: General Awareness
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Q:

Air is

A) compound	B) element
C) mixture	D) solution

Answer & Explanation Answer: C) mixture

Explanation:

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Filed Under: Chemistry

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Q:

Who invented Electrocardiograph(EKG)?

Answer

The EKG was invented by Willem Einthoven in 1903 and is used to monitor and analyze past and present heart activity in an individual.

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Subject: Inventions

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Q:

3rd Sunday of June is observed as ______

A) World Freedom Day	B) United Nations Day for South-South Cooperation
C) International Father's Day	D) World Alzheimer's Day

Answer & Explanation Answer: C) International Father's Day

Explanation:

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Filed Under: Important Days and Years

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Q:

What kind of creature is the heart on its head?

A) Cockroach	B) Snail
C) Shrimps	D) Honey bee

Answer & Explanation Answer: C) Shrimps

Explanation:

A Shrimps heart is located on its head.

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Filed Under: Animals and Birds
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Q:

Which of the following national parks of India is also a UNESCO world heritage site ?

A) Keoladeo national park	B) Jim Corbett national park
C) Namdapha national park	D) Keibul Lamjao national park

Answer & Explanation Answer: A) Keoladeo national park

Explanation:

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Filed Under: General Awareness

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Q:

Which country is hosting the International Diamond Conference "Mines to Market 2017" ?

A) India	B) South Africa
C) Namibia	D) Japan

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