Hot extrusion of aluminium is done in the temperature range of ________________ °C ?

Related Mcqs:

Volume of blast furnace slag is about _______________ times the volume of hot metal (pig iron) of the same weight ?

A. 1.5 B. 3 C. 5 D. 7...

Matte smelting is used in the extraction of_____________________?

A. Lead B. Zinc C. Aluminium D. Copper...

____________________ flux is used for the extraction of metal from its self fluxing ores?

A. No B. Acid C. Basic D. Neutral...

Which of the following is an unconventional source of energy ?

A. Thermal power B. Hydroelectric power C. Nuclear-fusion power D. Solar power...

To improve the machinability of steel, it is generally subjected to _____________________?

A. Spheroidising B. Tempering C. Normalising D. Annealing...