Which of the following alloys is used for making magnets?
1 Duralumin
2 Stainless steel
3 Alnico
4 Magnalium
Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz
Of the various forms of carbon, the one which is used for adsorption purpose, is 1 Diamond 2 Graphite 3 Coke 4 Wood charcoal
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Amalgams are 1 Alloys which contain carbon 2 Alloys which have great resistance to abrasion 3 Alloys which contain mercury as one of the contents 4 None of these
WHATE COLOUR OF STAR;SIZE;
Which of the following colors in he visible spectrum has maximum range? 1 Violet 2 Indigo 3 Orange 4 Red
why is ohms law not followed in long transmisson lines
Which of the following is used as a filler in rubber tyres? 1 Graphite 2 Coal 3 Coke 4 Corbon black
Which are the units of functioning in vssc?
The combustible material at the tip of a safety match sitck is 1 Sulphur 2 Manganese dioxide 3 Phosphorus 4 Antimony sulphide
The recent atomic weight scale is based on 1 1H1 2 1H2 3 6C12 4 8O16
What are all of the uses for a dynamo?