04-B)Answer the following questions in brief. Any 2
1) Mention the advantages of using a machine
2) What measures will you take to control noise pollution?
3) Which machines run on muscular force?
4) What are the non conventional energy resources?
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ANSWER) 4) Energy generated by using wind, solar, small hydro, tides, geothermal heat and biomass is known a non-conventional energy. All these sources are renewable process of energy generation and do not cause environmental pollution. Our country has been endowed with adequate natural resources.
ANSWER )1) Machinery is being extensively used because of certain advantages.
The following are the chief advantages of the use of machinery:
Use of Natural Forces:
Heavy and Delicate Work:
Faster Work:
More Accurate Work:
Strain on:
Cheap Goods:
Mobility of Labour:
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