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What s de answer for this question : Three independent
mechanisms A, B and C have been incorporated for power
saving in a plant producing respectively 30%, 40% and 10%
efficiency. Assuming that they operate independently, what
is the net power efficiency achieved.
(a) 62.2% (b) 68% (c) 61% (d) 64% (e) 56% ans 61..
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Answer Posted / kartik
its simple...just use the follow formula...
a+b+ab/100
here since it is saving therefore we use
-a-b+(-a)*(-b)/100
therefore for 1st 2 we get
-30-40+30*40/100=-58
then this intermediate ans wid 3rd gives..
-58-10+58*10/100=62.2
| Is This Answer Correct ? | 6 Yes | 0 No |
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