Electrical Machines Alternator operates on the principle of electromagnetic induction. self induction. mutual induction. self or mutual induction. electromagnetic induction. self induction. mutual induction. self or mutual induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC motor can be determined by Ampere's law. Fleming's right hand rule. Fleming's left hand rule. Lenz's law. Ampere's law. Fleming's right hand rule. Fleming's left hand rule. Lenz's law. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature reaction mmf in a DC machines has a form of rectangular. sinusoidal. trapezoidal. triangular. rectangular. sinusoidal. trapezoidal. triangular. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motors are used in traction cranes food processing All of these traction cranes food processing All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements about commutating poles which are fitted on most large dc Shunt motors: 1. The commutating poles are placed in the geometric neutral plane and their number is usually Equal to the number of main poles 2. The winding on the commutating poles is connected in series with the shunt-field winding on the main poles 3. The polarity of the commutating pole must be that of the next pole further ahead 4. The commutating poles neutralize the reactance voltage produced in the coil undergoing Commutation. Of these statements, 1, 2 and 4 are correct 2, 3 and 4 are correct 1 and 4 are correct 1, 2 and 3 are correct 1, 2 and 4 are correct 2, 3 and 4 are correct 1 and 4 are correct 1, 2 and 3 are correct ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motors are preferred for refrigeration and air conditioning in smaller units? Stepper motors. Induction motors. Universal motors. Reluctance motors. Stepper motors. Induction motors. Universal motors. Reluctance motors. ANSWER DOWNLOAD EXAMIANS APP
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