Electrical Machines A 240 V DC series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 ohms. The value of resistance which must be added to obtain rated torque at 1000 rpm is 5.7 ohms. 2.2 ohms. 6 ohms. 1.9 ohms. 5.7 ohms. 2.2 ohms. 6 ohms. 1.9 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound DC machine has 400 conductors and 8 poles. The voltage induced per conductor is 2 volts. The machine generates a voltage of 400 V. 200 V. 100 V. 800 V. 400 V. 200 V. 100 V. 800 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Fufuraldehyde analysis is done to determine the condition of lamination on CRGO steel sheet. condition of oil in transformer. condition of paper insulation in transformer. condition of cork gaskets used in transformer. condition of lamination on CRGO steel sheet. condition of oil in transformer. condition of paper insulation in transformer. condition of cork gaskets used in transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The air gap between stator and the rotor of the 3 - φ induction motor is kept as wide as possible. as small as possible. depends on the material of stator and the rotor. air gap does not matter. as wide as possible. as small as possible. depends on the material of stator and the rotor. air gap does not matter. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? Applied voltage. Field flux. All of these. Armature current. Applied voltage. Field flux. All of these. Armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque developed in the rotor is inversely proportional to slip either of these not dependent on the slip directly proportional to slip inversely proportional to slip either of these not dependent on the slip directly proportional to slip ANSWER DOWNLOAD EXAMIANS APP
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