Energy of the sun arises mainly from __________ reactions...
Energy of the sun arises mainly from __________ reactions.
fusion
fission
combustion
none of these
Correct answer is A
No explanation has been provided for this answer.
Friction factor for fluid flow in pipe does not depend upon the ...
Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography. ...
A high pressure boiler generates steam at a pressure greater than __________ kg/cm2 . ...
Chromium molybdenum steel cannot be welded using __________ welding. ...
A solar cell converts the sunlight directly into __________ energy. ...
Sudden fall of atmospheric pressure by a large amount is an indication of the ...
In extrusion of metals, which of the following statements is true ? ...
Which of the following is not an explosive? ...
Machinability of hard alloys and tool steels is improved by ...