Electrical Machines In a 6 pole DC machine, 90 mechanical degrees correspond to which of the following electrical degree? 45. 30. 180. 270. 45. 30. 180. 270. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous motor is supplying a load at unity power factor. If the load on the motor is increased keeping its excitation and terminal voltage constant, the power factor will become leading None of these will become lagging will remain the same will become leading None of these will become lagging will remain the same ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for parallel operation of alternators? Speed of alternators should be same Terminal voltage is same Both 1and 2 Frequency should be same Speed of alternators should be same Terminal voltage is same Both 1and 2 Frequency should be same ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eddy current loss will depends on All of these Thickness Frequency Flux density All of these Thickness Frequency Flux density ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? half load any of the above no load full load half load any of the above no load full load ANSWER DOWNLOAD EXAMIANS APP
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 differentially compounded motor in the opposite direction cumulative compounded motor in opposite direction cumulative compounded motor in the same direction differentially compounded motor in the same direction differentially compounded motor in the opposite direction cumulative compounded motor in opposite direction cumulative compounded motor in the same direction ANSWER DOWNLOAD EXAMIANS APP
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