Which is an amorphous material ?
Which is an amorphous material ?
A. Glass
B. Mica
C. Brass
D. Cast iron
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Constantan is an alloy of____________________?
Constantan is an alloy of____________________?A. Cu (55%) & Sn (45%)
B. Cu (55%) & Ni (45%)
C. Pt (95%) & Rh (10%)
D. Fe (80%) & Ni (20%)Addition of 2% nickel in steel makes it suitable for making ___________________?
Addition of 2% nickel in steel makes it suitable for making ___________________?A. Electronic valves
B. Boiler plates, rivets etc.
C. Turbine blades
D. Connecting rodThe carbonating tower used in Solvay process of soda ash manufacture is made of_________________?
The carbonating tower used in Solvay process of soda ash manufacture is made of_________________?A. Cast iron
B. Stainless steel
C. Karbate
D. Lead lined steelLead lined equipments & vessels are suitable for handling __________________?
Lead lined equipments & vessels are suitable for handling __________________?A. Hydrochloric acid (10%)
B. Nitric acid
C. Sulphuric acid upto 60°C
D. All A., B. and C.Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of___________________?
Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of___________________?A. Rubber lined mild steel
B. Lead lined mild steel
C. Aluminium
D. Cast ironHardening of steel is not possible unless it is heated ______________ critical point?
Hardening of steel is not possible unless it is heated ______________ critical point?A. Above the highest
B. Above the lowest
C. Between the first & second
D. Between the second & third