Electrical Machines For a specific open-circuit voltage of a DC generator, the short-circuit electric current will be maximum when it is separately excited. cumulatively compounded. shunt connected. differentially compounded. separately excited. cumulatively compounded. shunt connected. differentially compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the DC Motor use flywheel? Shunt motor. Differently compared motor. Cumulatively compound motor. Series motor. Shunt motor. Differently compared motor. Cumulatively compound motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A generator may loose residual magnetism due to heating. any of these. over excitation. vibrations. heating. any of these. over excitation. vibrations. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulation method is accurate ? MMf method ZPF method Synchronous impedance method American standard association method MMf method ZPF method Synchronous impedance method American standard association method ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements regarding the speed control of dc motors : 1. ward-leonard method is suitable forconstant-torque drives 2. Ward-leonard method is suitable for constant-power drives 3. field-control method facilitates speed control below base speed 4. Armature-resistance control method is more efficient than ward-leanard method 5. Field-control method is suitable for constant-torque drives 6. Armature-resistance control method is suitable for constant-torque drives From these, the correct answer is 1, 3, 5 1, 2, 5 1, 2, 6 1, 4, 6 1, 3, 5 1, 2, 5 1, 2, 6 1, 4, 6 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reactive power generated or delivered significantly depends on frequency. load angle. excitation. both 1 and 2. frequency. load angle. excitation. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
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