Electrical Machines Which of the following DC generators has rising V-I characteristics? None of them. Shunt. Compound. Series. None of them. Shunt. Compound. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine will have maximum efficiency? Electrical power transformer. DC motor. Induction motor. Electrical power generator. Electrical power transformer. DC motor. Induction motor. Electrical power generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Stator copper loss Stator core loss All of these Rotational loss Stator copper loss Stator core loss All of these Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To have sparkless commutation, the armature reaction effect in a DC machine is neutralized by fixing the brush axis inline with the pole axis. increasing field excitation. compensating winding and commutating poles. shifting the brush axis from GNA to MNA. fixing the brush axis inline with the pole axis. increasing field excitation. compensating winding and commutating poles. shifting the brush axis from GNA to MNA. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the commutator pitch? Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the back end of the armature. Number of conductors spanned by one coil at the front end of the armature. The distance between the staring of first coil and its next successive coil Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the back end of the armature. Number of conductors spanned by one coil at the front end of the armature. The distance between the staring of first coil and its next successive coil ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which is the arrangement of windings in a core type single phase transformer? Lv on one core limb and hv on the other Half hv inside and half lv outside on each core limb Sandwiched lv and hv discs on each core limb Half lv inside and half hv outside on each core limb Lv on one core limb and hv on the other Half hv inside and half lv outside on each core limb Sandwiched lv and hv discs on each core limb Half lv inside and half hv outside on each core limb ANSWER DOWNLOAD EXAMIANS APP
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