Answer:
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Answer:
The efficiency of a DC generator is maximum when those losses proportional to the square of the load current are equal to the constant losses of the DC generator. This relation applies equally well to all rotating machines, regardless of the type of machine.
Explanation:
Answer:
b) Cohesive wear.
Explanation:
The question has some engineering subjects as Fatigue Mechanical, surface engineering, bearings design and material engineering.
According the definition of cohesive wear is the damage, gradual deformation of material at solid surfaces.
A molecule of natural gas is made up of carbon and hydrogen. When the hydrogen is segregated from the carbon and filled into a fuel cell, it fuses with oxygen to produce water, electricity, and heat. The carbon is released as carbon dioxide in smaller quantities than from gas turbines