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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Q:

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

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

Answer & Explanation Answer: A) India

Explanation:

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Exam Prep: Bank Exams

3 3970

Q:

Alum is used

A) as an analgesic	B) in the purification of water
C) as a fertilizer	D) as a disinfectant

Answer & Explanation Answer: B) in the purification of water

Explanation:

Alum is a common alum, potassium aluminum sulphate $K_{2} S O_{4} . {(A l_{2} S O_{4})}_{3} . 24 H_{2} O$ which makes colloidally suspended impurities in water such as clay to settle down.

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Filed Under: Chemistry
Exam Prep: AIEEE

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Q:

Which of the following monuments was not constructed by Shajahan?

A) Red fort, Delhi	B) Tajmahal, Delhi
C) Kuthubminar, Delhi	D) Jama Masjid, Delhi

Answer & Explanation Answer: C) Kuthubminar, Delhi

Explanation:

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Filed Under: Indian History

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Q:

Which team did Sachin Tendulkar paly for in the Ranji Trophy when he made his debut in first class cricket

A) Karnataka	B) Delhi
C) Mumbai	D) kerala

Answer & Explanation Answer: C) Mumbai

Explanation:

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Filed Under: Sports

2 3969

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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3 3969

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:

The United Nation declared 2003-2012 as the International decade for

A) United Nations Literacy Decade	B) Bone and Joint Decade
C) Second International Decade for the Eradication of colonialism	D) International Decade for Natural Disaster Rreduction

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