Electrical Machines For higher values of armature, the speed of a DC series motor is Proportional to the square of armature current. Proportional to armature current. Constant. Inversely proportional to armature current. Proportional to the square of armature current. Proportional to armature current. Constant. Inversely proportional to armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When an electric train is moving down a hill, the DC motor will operate as DC series motor. DC shunt motor. DC shunt generator. DC series generator. DC series motor. DC shunt motor. DC shunt generator. DC series generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V curve of synchronous motor shows variation of power factor and supply voltage during hunting. supply voltage and field current at constant excitation. supply voltage and excitation current at constant load. power factor and DC excitation at constant load. power factor and supply voltage during hunting. supply voltage and field current at constant excitation. supply voltage and excitation current at constant load. power factor and DC excitation at constant load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are polarities should be same. rating of generators should be same. both A and B. terminal voltage should be same. polarities should be same. rating of generators should be same. both A and B. terminal voltage should be same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is suitable for frequent starting and stoppings? Resistance split phase motor All of these Capacitor start motor Capacitor start capacitor run motor Resistance split phase motor All of these Capacitor start motor Capacitor start capacitor run motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pole pairs Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance for lap-winding ? PZL/4Sa² PZL/4S PZL/4SP² PZL/ 4Sa PZL/4Sa² PZL/4S PZL/4SP² PZL/ 4Sa ANSWER DOWNLOAD EXAMIANS APP
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