Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 4 and 2 4 ang 1 2 and 2 2 and 1 4 and 2 4 ang 1 2 and 2 2 and 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The speed of motor. The torque required. The voltage across the terminals. None of above. The speed of motor. The torque required. The voltage across the terminals. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the highest possible speed of turbo alternators? 3000 rpm 1500 rpm 4000 rpm 1000 rpm 3000 rpm 1500 rpm 4000 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to high speed. residual flux. high field resistance. magnetic inertia. high speed. residual flux. high field resistance. magnetic inertia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by Bl2v. Blv. Blv2. Bl2v2. Bl2v. Blv. Blv2. Bl2v2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the function of inter pole in DC generator? To neutralize the distortion of main field flux due to armature reaction. To get a superior commutation. Both option B and C. To serve the economical aspects. To neutralize the distortion of main field flux due to armature reaction. To get a superior commutation. Both option B and C. To serve the economical aspects. ANSWER DOWNLOAD EXAMIANS APP
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