The winding in a transformer that has more number of turns High voltage winding Low voltage winding Primary winding Secondary winding Correct answer: 1. High voltage winding Visit Electrical Engineering MCQ here for more
A 220 V generator is running at full speed without any excitation. The open circuit voltage will be 220 V About 2 V About 50 V Zero Correct answer: 2. About 2 V Visit Electrical Engineering MCQ here for more
In case of power or distribution transformer about 10 percent end turns are heavily insulated, this is done so as To absorb the line surge voltage and save the winding of transformer from damage To reflect the line surge and save the winding of a transformer from damage To withstand the high voltage drop due … Read more
In case of generator the critical resistance refers to the resistance of Armature Brushes Field Load Correct answer: 3. Field Visit Electrical Engineering MCQ here for more
The path of magnetic flux in transformer should have High reluctance High resistance Low reactance Low resistance Correct answer: 3. Low reactance Visit Electrical Engineering MCQ here for more
In generators, the cause of rapid brush wear may be Imperfect contact Rough commutator surface Severe sparking Any of these Correct answer: 4. Any of these Visit Electrical Engineering MCQ here for more
The role of conservator in a transformer is To cool the transformer oil To project against internal fault To reduce copper as well as core losses To take care of the expansion and contraction of transformer oil due to variation in temperature of surroundings Correct answer: 4. To take care of the expansion and contraction … Read more
In generator, the number of mechanical degrees and electrical degrees will be the same when Number of poles is 2 Number of poles is 4 RPM is less than 300 RPM is more than 300 Correct answer: 1. Number of poles is 2 Visit Electrical Engineering MCQ here for more
The demagnetizing component of armature reaction in DC generator will Increase armature speed Reduce generator EMF Reduce interpoles flux density Result in sparking trouble Correct answer: 2. Reduce generator EMF Visit Electrical Engineering MCQ here for more
In a generator the actual flux distribution depends on Clearance between tips of the adjacent pole shoes Shape of the pole shoe Size of air gap All of these Correct answer: 4. All of these Visit Electrical Engineering MCQ here for more