Answer / guest

1932

The filament of an electric bulb is made of 1 Iron 2 Nichrome 3 tungsten 4 Graphite

9 Answers   Germanium, Google, Graphite India, Tungsten,

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Long distance photography is facilitated by 1 Visible light 2 X-rays 3 Infrared rays 4 Ultraviolet rays

4 Answers   BCA, HCL,

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Water gas is prepared by passing 1 Steam over white-hot coke 2 Air over red-hot coke 3 Methane over red-hot coke 4 Steam over heated sulphur

6 Answers  

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how is electricity converted from the potential energy of water falling from dams?

3 Answers   HLL, KIH, Reliance,

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Which of the following is a chemical change? 1 Magnetization of iron 2 Melting of ice 3 Burning of sulphur 4 Melting of wax

1 Answers  

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In vulcanization, natural rubber is heated with 1 Carbon 2 Sulphur 3 Silicon 4 Phosphorus

2 Answers  

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Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz

3 Answers  

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Which is/are the important raw material(s) required in cement industry? 1 Limestone 2 Gypsum & clay 3 Clay 4 Limestone & clay

6 Answers  

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precautions to be observed while using electrical equipment

1 Answers  

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Which of the following is not a chemical reaction? 1 Burning of paper 2 Digestion of food 3 Conversion of water into steam 4 Burning of coal

1 Answers   NTS,

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What is the Movement ?

2 Answers  

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Who propounded the signs of the zodiac?

0 Answers  

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