Economics of Power Generation
The only motor that can be worked at leading power factor is

None of the listed here
3-phase induction motor
Synchronous motor
1- phase induction motor

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Economics of Power Generation
Annual depreciation as per straight line method, is calculated by

increasing a uniform sum of money per annum at stipulated rate of interest
None of these
the capital cost divided by number of year of life
the capital cost minus the salvage value, is divided by the number of years of life

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