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General Knowledge > Science And Technology > Flashcards

Science And Technology Flashcards

1
Q

The vacuum cleaner, invented by Ives McGattey, was originally called

A

Whirlwind

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2
Q

What was first successfully tested from a hot air balloon in France in 1797 by Jacques Garnerin

A

Parachute

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3
Q

Name the seismologist who invented the scale, used in measuring the magnitude of earthquakes

A

Charles Richter

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4
Q

Who invented the gramophone

A

Thomas Alva Edison

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5
Q

Who invented the diesel engine?

A

Rudolph Diesel

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6
Q

Bronze made of copper and tin. True or false?

A

True

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7
Q

Metals are usually bad conductors of electricity and heat. True or false?

A

False

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8
Q

The amount of gold in various alloys is measured in calories. True or false?

A

False

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9
Q

Mercury is liquid at room temperature. True or false?

A

True

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10
Q

Combination of any substance with oxygen

A

Oxidation

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11
Q

Building blocks of matter are called

A

Atoms

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12
Q

Soaps, detergents, household ammonia are

A

Common bases, oxygen

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13
Q

Most abundant element in the universe is

A

Hydrogen

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14
Q

Fire, opera, chrome, explorer are types of what?

A

Web browsers

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15
Q

What are PlayStation, Xbox and Nintendo?

A

Video games

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16
Q

What special technology is used for crime detection or in paternity disputes?

A

DNA fingerprinting

17
Q

What is eBay?

A

Online auction and shopping website

18
Q

What is a robot brain known as?

A

CPU

19
Q

Headquarters of adobe are in ______________________.

A

San Jose ( California US)

20
Q

WIPROO stands for

A

West Indian products

21
Q

Person who pioneered Macintosh

A

Steve Jobs and Steve Wozniak

22
Q

Founders of yahoo are ______________________ and ______________________

A

Jerry Yang, David Filo

23
Q

This is called the golden fibre

A

Jute

24
Q

Boeing and airbus manufacture

A

Commercial jetliners

25
Q

Tripur in Tamilnadu is known for large exports of ______________________ around the world

A

Cotton textile mills

26
Q

India’s first color TV was launched by ______________________ with a tie up withToshiba, Japan.

A

Videocon

27
Q

Salim iron and steel plant is in the state of

A

Tamilnadu

28
Q

Baking soda

A

Sodium bicarbonate

29
Q

Bleaching powder

A

Chlorinated lime

30
Q

Laughing gas

A

Nitrous oxide

31
Q

Marble

A

Calcium carbonate

32
Q

Quiksilver

A

Mercury

33
Q

Which is the most malleable metal?

A

Gold

34
Q

What are malleable metals?

A

Metals that can be beaten into various ships

35
Q

How do you prevent iron and steel from getting rusted?

A

They need to be painted, coated by lead oxide primer, they can be painted or coated with zinc (galvanized)

36
Q

99% of the mass of human body is made up of just six elements. what are those elements? 

A

Oxygen, Carbon, Phosphorus, Nitrogen, Hydrogen and Calcium

37
Q

Which is the purest form of carbon?

A

Diamonds

General Knowledge (12 decks)

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