Electrical Machines In an induction motor, what is the ratio of rotor input to rotor copper loss? 1/S S 1-S 1/(1-S) 1/S S 1-S 1/(1-S) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Limit the flux. Limit the current. Limit the speed. Avoid sparking. Limit the flux. Limit the current. Limit the speed. Avoid sparking. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltage regulation of a DC generator at full load being zero implies that the generator is deferentially compounded. cumulatively compounded. shunt connected. series connected. deferentially compounded. cumulatively compounded. shunt connected. series connected. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ideal value of voltage regulation of a device is? ∞ a finite negative value 0 a positive finite value ∞ a finite negative value 0 a positive finite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would be more than 10% be 12.5% be less than 10% remain unchanged be more than 10% be 12.5% be less than 10% remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 460 V 115 V 230 V 65 V 460 V 115 V 230 V 65 V ANSWER DOWNLOAD EXAMIANS APP
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