Electrical Machines If the air gap of IM is increased, ____________ will increase. power factor. air gap flux. magnetizing current. speed. power factor. air gap flux. magnetizing current. speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In IM the rotor lamination can be ________________ than stator laminations. sipper. thinner. rotor can not have any laminations. thicker. sipper. thinner. rotor can not have any laminations. thicker. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine, 1. physically, the brush axis is along the direct axis 2. physically, the brush axis is along the interpolar axis 3. schematically, the brush axis is along the direct axis 4. schematically, the brush axis is along the quadrature axis 5. armaturemmf is directed along the brush axis From these, the correct statements are 2, 3, 5 2, 4, 5 1, 4,5 1 , 3, 5 2, 3, 5 2, 4, 5 1, 4,5 1 , 3, 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc motors, under leading pole tips flux density will--------? decrease either increase or decrease increase None of these decrease either increase or decrease increase None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor is used in paper machines? DC Shunt motor. DC compound motor. Separately excited DC motor. DC series motor. DC Shunt motor. DC compound motor. Separately excited DC motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the e.m.f. generated by a 4 pole lap connected DC Generator rotating at 1500 r.p.m.? Its flux per pole is 0.4 mWb and total no of armature conductors is 1000. 40 volts. 20 volts. 30 volts. 10 volts. 40 volts. 20 volts. 30 volts. 10 volts. ANSWER DOWNLOAD EXAMIANS APP
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