Electrical Machines Swinburne test is conducted under which of the following condition? full load no load half load any of the above full load no load half load any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltmeter connected across a generator reads voltage same at no load and at full load (rated). The generator is of the type level compound. series generator. short - shunt generator. shunt generator. level compound. series generator. short - shunt generator. shunt generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an induction machine is run at above the synchronous speed it acts as an induction motor an induction generator a synchronous motor None of these an induction motor an induction generator a synchronous motor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by sf / 2. s2. sf. f / s. sf / 2. s2. sf. f / s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 12 pole triplex lap wound DC armature, each conductor can carry current of 100 A. The rated current of this armature is 3600 A. 2400 A. 600 A. 1200 A. 3600 A. 2400 A. 600 A. 1200 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of DC motor Both back emf as well as line current fall. Back emf increase but line current falls. Back emf falls and line current increase. Both back emf as well as line current increase. Both back emf as well as line current fall. Back emf increase but line current falls. Back emf falls and line current increase. Both back emf as well as line current increase. ANSWER DOWNLOAD EXAMIANS APP
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