Electrical Machines The armature resistance of the dc motor is generally of the range 0.5 ohm. 100 ohm. 50 ohm. 0.1 ohm. 0.5 ohm. 100 ohm. 50 ohm. 0.1 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor slots are slightly skewed in squirrel cage induction motor to reduce the magnetic hum and locking tendency of rotor. decrease the amount of copper to be used. increase the strength of rotor bars. provide ease of fabrication. reduce the magnetic hum and locking tendency of rotor. decrease the amount of copper to be used. increase the strength of rotor bars. provide ease of fabrication. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp? 60 V. 90 V. 40 V. 30 V. 60 V. 90 V. 40 V. 30 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a seperately excited DC Motor if field current is increased, it will Reduce starting torque. Increase speed Reduce armature heating. Increase acceleration duration. Reduce starting torque. Increase speed Reduce armature heating. Increase acceleration duration. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip rings of an induction motors are made of aluminium. stainless steel. carbon. phosphor bronze. aluminium. stainless steel. carbon. phosphor bronze. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series generators are used in which of the following applications? All of these Arc welding. Air crafts. Used as boosters in dc distribution or transmission. All of these Arc welding. Air crafts. Used as boosters in dc distribution or transmission. ANSWER DOWNLOAD EXAMIANS APP
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