The rolling process cannot be used to produce______________________?
The rolling process cannot be used to produce______________________?
A. Plates
B. Rods
C. Tubes
D. Wires
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The most important requirement for aluminium industry is the availability of cheap _______________?
The most important requirement for aluminium industry is the availability of cheap _______________?A. Ore
B. Electrical power
C. Labour
D. Abundant waterNatural water contains approximately ______________ percent of heavy water?
Natural water contains approximately ______________ percent of heavy water?A. 0.015
B. 0.71
C. 1.2
D. 3.5The substance used as a smoke screen in warfare is___________________?
The substance used as a smoke screen in warfare is___________________?A. C2H2
B. SiCl4
C. P2O5
D. PCl5With increase in impurities in metals, their corrosion resistances____________________?
With increase in impurities in metals, their corrosion resistances____________________?A. Increase
B. Decrease
C. Remain same
D. May increase or decrease; depending on the type of metalDry saturated steam can be converted into super heated steam by____________________?
Dry saturated steam can be converted into super heated steam by____________________?A. Increasing its cross-sectional area of flow
B. Passing it through a pressure reducing valve
C. Forcing it downwards through a vertical tube
D. None of theseWhich of the following is resistant to the action of both heat & chemicals ?
Which of the following is resistant to the action of both heat & chemicals ?A. Borosilicate glass
B. Silica glass
C. Soda lime glass
D. None of these