Electrical Machines In DC generators, the residual magnetism is of the order of 10 %. 2.5 %. 20 %. 15 %. 10 %. 2.5 %. 20 %. 15 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed by a synchronous motor depends on excitation and load angle supply voltage and load angle supply voltage, load angle and excitation supply voltage and excitation excitation and load angle supply voltage and load angle supply voltage, load angle and excitation supply voltage and excitation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 0.9103 KW. 5.46 KW. 2.73 KW. 1.644 KW. 0.9103 KW. 5.46 KW. 2.73 KW. 1.644 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The mechanical power is developed by a DC motor is maximum when back emf is equal to twice of applied voltage. back emf is equal to half of applied voltage. none of above. back emf is equal to applied voltage. back emf is equal to twice of applied voltage. back emf is equal to half of applied voltage. none of above. back emf is equal to applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The leakage reactance of a 3-phase alternator is determined by performing open circuit and zero power factor tests. short circuit and slip tests. open circuit and short circuit tests. zero power factor and slip tests. open circuit and zero power factor tests. short circuit and slip tests. open circuit and short circuit tests. zero power factor and slip tests. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the commutator pitch? Number of conductors spanned by one coil at the back 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 front end of the armature. Number of conductors spanned by one coil at the back 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 front end of the armature. ANSWER DOWNLOAD EXAMIANS APP
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