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Question
Which of the following industries will consume maximum power per tonne of product? 
निम्नलिखित में से कौन सा उद्योग प्रति टन उत्पाद पर अधिकतम बिजली की खपत करेगा?
A.
Zinc
B.
Aluminium
C.
Alloy steel
D.
Cement
Answer ( Option B)

Aluminium

Solution

Aluminum Production:
  • About 17,000 kWh of electricity is required to produce 1 tonne of aluminum.
Zinc Production: 
  • The amount of energy required for casting one tonne of zinc is 208 kWh, and for remelting, the same amount of metal is 155 kWh.
Alloy steel Production: 
  • With an average of 770 kWh/ton and a typical EAF consumption under 500 kWh/ton.
Cement Production: 
  • While total electrical energy consumption for cement production is about 100 kWh/ton of cement.

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