Electrical Machines Which of the following motors are suitable for computer printer drive ? Stepper motor. Hysteresis motor. Reluctance motor. Shaded pole motor. Stepper motor. Hysteresis motor. Reluctance motor. Shaded pole motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 4575.4 r.p.m. 1130 r.p.m. 963.8 r.p.m. 1037.5 r.p.m. 4575.4 r.p.m. 1130 r.p.m. 963.8 r.p.m. 1037.5 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator a synchronous dead load (lamp, furnaces etc) has no ____________ hence it has no natural frequency of oscillation. restoring torque. damping torque. mechanical rotatory system. synchronizing power co efficient. restoring torque. damping torque. mechanical rotatory system. synchronizing power co efficient. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cogging of induction motor occurs at high voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are not equal. high voltage and when stator and rotor poles are not equal. high voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are not equal. high voltage and when stator and rotor poles are not equal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine will have maximum efficiency? Electrical power transformer. Electrical power generator. DC motor. Induction motor. Electrical power transformer. Electrical power generator. DC motor. Induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor remains same. increases. None of these decreases. remains same. increases. None of these decreases. ANSWER DOWNLOAD EXAMIANS APP
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