Electrical Machines
A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a

 differentially compounded motor in the same direction
 cumulative compounded motor in opposite direction
 cumulative compounded motor in the same direction
 differentially compounded motor in the opposite direction

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Electrical Machines
A DC shunt generator builds up to a voltage of 220 V at no load while running at its rated speed. If the speed of the generator is raised by 25% kepping the circuit conditions unaltered, then the Voltage to which the machine would build up will

 increase to 1.25 times 220 V
 not change and remain at 220 V
 increase to a value greater than 1.25 times 220 V
 increase to value lying between 220 V and 1.25 times 220 V

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