Design Electrical Machines Design Rotor Online Exam Quiz
Design Electrical Machines Design Rotor GK Quiz. Question and Answers related to Design Electrical Machines Design Rotor. MCQ (Multiple Choice Questions with answers about Design Electrical Machines Design Rotor
What is the range of the ratio of the total cross section of rotor bars to the total stator copper section for main winding for copper?
Options
A : 0.4-0.8
B : 0.3-0.7
C : 0.5-0.8
D : 0.8-0.9
What is the range for the ratio of the resistance to reactance in the split phase motors?
Options
A : 0.40-0.55
B : 0.45-0.55
C : 0.45-0.8
D : 0.45-0.6
What is the range of the ratio of the total cross section of rotor bars to the total stator copper section for main winding for aluminium?
Options
A : 1-1.3
B : 1-1.4
C : 1-1.6
D : 1.2-1.5
How many design steps are available for the design of rotor?
Options
A : 5
B : 6
C : 7
D : 8
What is the formula for the area of each bar?
Options
A : area of each bar = current through each bar / current density through each bar
B : area of each bar = current through each bar * current density through each bar
C : area of each bar = current density through each bar / current through each bar
D : area of each bar = current density through each bar * current through each bar
What is the formula of the area of each end ring?
Options
A : area of each end ring = 0.32 * total cross section of rotor bars * number of poles
B : area of each end ring = 0.32 / total cross section of rotor bars * number of poles
C : area of each end ring = 0.32 * total cross section of rotor bars / number of poles
D : area of each end ring = 1/0.32 * total cross section of rotor bars * number of poles
What is the formula of the end ring current?
Options
A : end ring current = number of rotor slots * bar current * 3.14 * number of poles
B : end ring current = number of rotor slots * bar current * 3.14 / number of poles
C : end ring current = number of rotor slots / bar current * 3.14 * number of poles
D : end ring current = number of rotor slots * bar current / 3.14 * number of poles
What is the formula of the rotor teeth flux density?
Options
A : flux density of rotor teeth = maximum flux / (number of rotor slots / number of poles) * length of the teeth * depth of rotor core
B : flux density of rotor teeth = maximum flux * (number of rotor slots / number of poles) * length of the teeth * depth of rotor core
C : flux density of rotor teeth = 1/maximum flux * (number of rotor slots / number of poles) * length of the teeth * depth of rotor core
D : flux density of rotor teeth = maximum flux / (number of rotor slots * number of poles) * length of the teeth * depth of rotor core
What is the formula for the harmonic poles due to slots?
Options
A : harmonic poles due to slots = 2 * (number of slots ± number of poles / 2)
B : harmonic poles due to slots = 2 / (number of slots ± number of poles / 2)
C : harmonic poles due to slots = 2 * (number of slots ± number of poles * 2)
D : harmonic poles due to slots = 1/ 2 * (number of slots ± number of poles / 2)
What is the main motive while choosing the number of rotor slots?
Options
A : increasing the efficiency
B : decreasing the losses
C : no noise is produced
D : high output is produced
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