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Science and Technology › Chemistry

Science and Technology › Chemistry

2008

What are rubies and sapphires chemically known as?

Options

(a)

Silicon dioxide

(b)

Aluminum oxide

(c)

Lead tetroxide

(d)

Boron nitride

Answer

(B)
Science and Technology › Chemistry

2008

Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines?

Options

(a)

Hydrogen and oxygen

(b)

Oxygen and acetylene

(c)

Methane and air

(d)

Carbon dioxide and methane

Answer

(C)
Science and Technology › Chemistry

2008

Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively?

Options

(a)

Lithium and mercury

(b)

Lithium and osmium

(c)

Aluminum and osmium

(d)

Aluminum and mercury

Answer

(B)
Science and Technology › Chemistry

2008

What is the pH level of blood of a normal person?

Options

(a)

4.5-4.5

(b)

6.45-6.55

(c)

7.35-7.45

(d)

8.25-8.35

Answer

(C)
Science and Technology › Defence

Science and Technology › Defence

2008

From which one of the following did India buy the Barak anti-missile defence systems?

Options

(a)

Israel

(b)

France

(c)

Russia

(d)

USA

Answer

(A)
Science and Technology › Defence

2008

What is Agent Orange?

Options

(a)

An ace spying group trained by the Police in London

(b)

A weed-killing chemical used by the US Military in the Vietnam War

(c)

A technique used in the advanced railway safety procedure

(d)

A special chemical used in making alloy steel

Answer

(B)
Science and Technology › Defence

2008

‘Hand-in-Hand 2007’, a joint anti-terrorism military training was held by the officers of the Indian Army and officers of the Army of which one of the following countries?

Options

(a)

China

(b)

Japan

(c)

Russia

(d)

USA

Answer

(A)
Science and Technology › Defence

2008

In the context of the Indian defence, what is ‘Dhruv’?

Options

(a)

Aircraft-carrying warship

(b)

Missile-carrying submarine

(c)

Advanced light helicopter

(d)

Intercontinental ballistic missile

Answer

(C)
Science and Technology › Emerging TechXSpace

Science and Technology › Emerging TechXSpace

2008

Consider the following statements in respect of a jet engine and a rocket:
1. A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space.
2. A rocket carries its own supply of oxygen in the gas form, and fuel.

Options

(a)

1 only

(b)

2 only

(c)

Both 1 and 2

(d)

Neither 1 nor 2

Answer

(C)
Science and Technology › Nobel Prizes

Science and Technology › Nobel Prizes

2008

Kim Dae-Jung won the Nobel Prize for Peace. He is from which one of the following countries?

Options

(a)

Vietnam

(b)

Cambodia

(c)

South Korea

(d)

Japan

Answer

(C)

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