Electrical Machines The efficiency of a transformer is mainly dependent on copper losses. stray losses. dielectric losses. core losses. copper losses. stray losses. dielectric losses. core losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Generators work on the principle of production of dynamically induced emf. dynamically and statically induced emf. None of these statically induced emf. dynamically induced emf. dynamically and statically induced emf. None of these statically induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are slot wedges in a DC machine made of? Fibre. Cast iron. Silicon steel. Mild steel. Fibre. Cast iron. Silicon steel. Mild steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Speed of DC motor can be controlled by varying its flux oer pole. resistance of armature culture. all of these. applied voltage. its flux oer pole. resistance of armature culture. all of these. applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor operates in stable region at which of the following slip? low slip region high slip region unity slip both 1 and 2 low slip region high slip region unity slip both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Pi and Pc represent core and full load copper loss respectively, the maximum KVA delivered to load corresponding to maximum efficiency is equal to rated KVA is (Pi/Pc)2 √(Pi/Pc) Pc/Pi Pi/Pc (Pi/Pc)2 √(Pi/Pc) Pc/Pi Pi/Pc ANSWER DOWNLOAD EXAMIANS APP
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