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.Management Sciences
Category: Chemical Engineering Basics
A high pressure boiler generates steam at a pressure greater than _____________________ kg/cm2 ?
0
A. 10
B. 30
C. 50
D. 80
Often earing defects are found during deep drawing operation, because the __________________?
A. Surface finish of the sheet is poor
B. Sheet material has been given substantial spring back
C. Starting sheet has planer anisotropy due to its texture
D. Starting sheet has normal anisotropy due to its texture
The dimensional formula of bulk modulus of elasticity is same as that of the ____________________?
A. Pressure
B. Density
C. Force
D. None of these
The ‘laughing gas’ is__________________?
A. Nitrous oxide
B. Nitric oxide
C. Nitrogen trioxide
D. Nitrogen pentoxide
Electrolytic reduction cell used for conversion of calcined Al2O3 to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to___________________?
A. Achieve very high purity of aluminium (99.9%)
B. Keep the electrolyte in liquid condition by the generation of heat
C. Electrolytically dissociate alumina
D. Both B. & C.
______________ circuit is most commonly used to measure strain with the help of a strain gauge?
A. Ballast
B. Voltage balancing potentiometric
C. Simple current sensitive
D. None of these
_______________ rubber is generally used for making ‘O’ rings used for vacuum sealings?
A. Natural
B. Neoprene
C. Butadiene
D. Nitrile
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