What is the relation between maximum power and the number of poles?(a) maximum power factor is directly proportional to the number of poles(b) maximum power factor is directly proportional to the square of the number of poles(c) maximum power factor is indirectly proportional to the number of poles(d) maximum power factor is indirectly proportional to the square of the number of polesThe question was asked during a job interview.Asked question is from Dispersion Coefficient topic in portion Three Phase Induction Motor of Design of Electrical Machines

What is the relation between maximum power and the number of poles?(a)

1.	What is the relation between maximum power and the number of poles?(a) maximum power factor is directly proportional to the number of poles(b) maximum power factor is directly proportional to the square of the number of poles(c) maximum power factor is indirectly proportional to the number of poles(d) maximum power factor is indirectly proportional to the square of the number of polesThe question was asked during a job interview.Asked question is from Dispersion Coefficient topic in portion Three Phase Induction Motor of Design of Electrical Machines
Answer» The correct CHOICE is (c) MAXIMUM power factor is indirectly proportional to the number of poles Explanation: SHORT circuit CURRENT is indirectly proportional to the number of poles. The short circuit current increases the dispersion COEFFICIENT. As the dispersion coefficient increases, the maximum power factor decreases.

Discussion

No Comment Found

Related InterviewSolutions

For the lower values of current, round conductors would be convenient to use.(a) true(b) falseThe question was asked by my college professor while I was bunking the class.Query is from Stator Winding in section Three Phase Induction Motor of Design of Electrical Machines
What should be the range of current density in the stator windings?(a) 2-5 A per mm^2(b) 4-5 A per mm^2(c) 3-5 A per mm^2(d) 2-3 A per mm^2I had been asked this question in a job interview.My question is taken from Stator Winding topic in section Three Phase Induction Motor of Design of Electrical Machines
What is the formula for stator turns per phase?(a) stator turns per phase = Stator voltage per phase / 4.44 * f * maximum flux / stator winding factor(b) stator turns per phase = Stator voltage per phase * 4.44 * f * maximum flux * stator winding factor(c) stator turns per phase = Stator voltage per phase / 4.44 * f * maximum flux * stator winding factor(d) stator turns per phase = Stator voltage per phase * 4.44 * f * maximum flux / stator winding factorThe question was posed to me by my school principal while I was bunking the class.The query is from Stator Winding in portion Three Phase Induction Motor of Design of Electrical Machines
What is the initial assumption for the value of winding factor?(a) 0.9(b) 0.95(c) 0.93(d) 0.92This question was posed to me in semester exam.Origin of the question is Stator Winding topic in division Three Phase Induction Motor of Design of Electrical Machines
What class does the plastic foil baked with polyamide fibres belong to?(a) Y(b) B(c) F(d) HI had been asked this question at a job interview.I'm obligated to ask this question of Stator Winding in section Three Phase Induction Motor of Design of Electrical Machines
What is the formula for flux per pole?(a) flux per pole = average magnetic flux * pole pitch * length(b) flux per pole = average magnetic flux / pole pitch * length(c) flux per pole = average magnetic flux * pole pitch / length(d) flux per pole = average magnetic flux * pole pitch + lengthThis question was posed to me in final exam.I want to ask this question from Stator Winding topic in section Three Phase Induction Motor of Design of Electrical Machines
What type of winding is made use of small motors?(a) single layer mush winding(b) single layer lap winding(c) single layer wave winding(d) double layer wave windingThis question was addressed to me during an interview.This intriguing question originated from Stator Winding topic in section Three Phase Induction Motor of Design of Electrical Machines
What class does the slot and phase insulation belong to?(a) B(b) Y(c) H(d) EI had been asked this question in an internship interview.This interesting question is from Stator Winding topic in section Three Phase Induction Motor of Design of Electrical Machines
How much does the addition iron losses relate with the supplied power?(a) additional iron losses = 0.5% of supplied power(b) additional iron losses = 0.6% of supplied power(c) additional iron losses = 0.8% of supplied power(d) additional iron losses = 0.9% of supplied powerThe question was posed to me during an online exam.This intriguing question comes from Losses and Efficiency topic in portion Three Phase Induction Motor of Design of Electrical Machines
What type of winding is generally used for the stators?(a) double layer wave winding(b) double layer lap winding(c) single layer wave winding(d) single layer lap windingI have been asked this question by my college professor while I was bunking the class.My enquiry is from Stator Winding topic in chapter Three Phase Induction Motor of Design of Electrical Machines

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment