Electrical Machines Which of the following is/are effects of armature reaction? increases the design cost increase the maintenance and repair increase the iron loss All of these increases the design cost increase the maintenance and repair increase the iron loss All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The maximum power developed in cylindrical synchronous machine is occurs at a load angle of Greater than 90o. 0o. 90o. less than 90o. Greater than 90o. 0o. 90o. less than 90o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For pure resistive load what is the armature reaction? magnetization cross magnetization demagnetization All of these magnetization cross magnetization demagnetization All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward-Leonard system for controlling the speed of a DC motor is used where All of above. Very fine speed control over the whole range from zero to normal speed is required. The speed in both the direction is required. The accuracy in speed control is required. All of above. Very fine speed control over the whole range from zero to normal speed is required. The speed in both the direction is required. The accuracy in speed control is required. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to less than the width of commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. the width of the 2 to 3 commutator segment. less than the width of commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. the width of the 2 to 3 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in synchronous motor. in both machines. induction motor. none of above. synchronous motor. in both machines. induction motor. none of above. ANSWER DOWNLOAD EXAMIANS APP
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