Electrical Machines The size of inter poles is small as compared to main poles. What is the reason? In order to get more flux. In order to get saturated. All of these In order to not to get saturated. In order to get more flux. In order to get saturated. All of these In order to not to get saturated. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The brushes of a DC machine should be placed on the armature midway between poles. armature in the polar axis. commutator in the inter polar axis. commutator in the polar axis. armature midway between poles. armature in the polar axis. commutator in the inter polar axis. commutator in the polar axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of a permanent magnet dc motor is 0.8 Ohm. At no load, the motor draws 1.5 A from a supply voltage of 25 V and runs at 1500 rpm. The efficiency of the motor while it is operating on load at 1500 rpm drawing a current of 3.5 A from the same source will be 57.1%. 48.0%. 59.2%. 88.8%. 57.1%. 48.0%. 59.2%. 88.8%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a dc motor the ratio Eb / E is indicative of ratio of starting to running current. ratio of input to output voltage. efficiency. ratio of starting to running torque. ratio of starting to running current. ratio of input to output voltage. efficiency. ratio of starting to running torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor when started on no load does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be plugging. crawling. cogging. locking. plugging. crawling. cogging. locking. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, the electricity produced in armature is None of these DC. AC. armature is not present in DC generator. None of these DC. AC. armature is not present in DC generator. ANSWER DOWNLOAD EXAMIANS APP
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