Chemical Engineering MCQs

6108 MCQs  (Page 470 of 611)

Platinum and silver are corroded by___________________?
A. Caustic soda solution
B. Phosphoric acid
C. Sulphuric acid (10%)
D. None of these
Plate and frame filter press is usually made of__________________?
A. Mild steel
B. Cast iron
C. Stainless steel
D. Galvanised iron
For platinum thermocouples, lead wires are made of___________________?
A. Copper & copper-nickel alloys
B. Copper & iron
C. Iron & nickel
D. Tin & nickel
Hardest material so far found is__________________?
A. Diamond
B. Graphite
C. Carborundum
D. Pumice stone