Electrical Machines In a DC machine, the angle between the stator and rotor fields is 90o. dependent upon the load. 180o. 0o. 90o. dependent upon the load. 180o. 0o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will reduce by 5 %. remain unchanged. increase by 5 %. depend on other factors. reduce by 5 %. remain unchanged. increase by 5 %. depend on other factors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Equalizer rings are used in which of the followings? wave winding lap winding None of these both 1 and 2 wave winding lap winding None of these both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of induction motors the ratio of length to pole pitch for minimum cost, is taken as 3 to 5. 1.5 to 2. 1.0. 2 to 3. 3 to 5. 1.5 to 2. 1.0. 2 to 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutation in a DC machine may be explained as a process by which electric current in a coil is reversed. by virtue of which emf is induced in the armature conductors. how alternate flux affects the main field flux. in which magnetic field is set up. by which electric current in a coil is reversed. by virtue of which emf is induced in the armature conductors. how alternate flux affects the main field flux. in which magnetic field is set up. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has maximum speed? 6 pole. 4 pole. 2 pole. 8 pole. 6 pole. 4 pole. 2 pole. 8 pole. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS