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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

10.What is the formula of the end ring current? 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

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

9. 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? a) 0.4-0.8 b) 0.3-0.7 c) 0.5-0.8 d) 0.8-0.9

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

8. What is the formula for the total cross section of rotor bars? a) total cross section of rotor bars = number of rotor slots * area of each bar b) total cross section of rotor bars = number of rotor slots / area of each bar c) total cross section of rotor bars = number of rotor slots + area of each bar d) total cross section of rotor bars = number of rotor slots – area of each bar

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

7. What is the formula for the total stator copper section for main winding? a) total stator copper section for main winding = number of turns in the running winding * area of the running winding conductor b) total stator copper section for main winding = 2 * number of turns in the running winding * area of the running winding conductor c) total stator copper section for main winding = number of turns in the running winding / area of the running winding conductor d) total stator copper section for main winding = 2* number of turns in the running winding / area of the running winding conductor

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

6. What among the following are considered for the selection of number of rotor slots? a) magnetic locking b) cusps c) magnetic locking or cusps d) magnetic locking and cusps

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

5. Which condition satisfies the quiet operation in machines? a) number of stator slots is divisible by number of pairs of poles b) number of rotor slots differs from the number of stator slots by more than the number of poles c) number of rotor slots is not divisible by number of pairs of poles d) number of stator slots differs from the number of rotor slots by more than the number of poles

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

4. What factors are used fixing the number of stator slots? a) winding arrangement b) number of poles c) winding arrangement or number of poles d) winding arrangement and number of poles

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

3. What is the formula for the harmonic poles due to slots? 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)

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

2. What is the main motive while choosing the number of rotor slots? a) increasing the efficiency b) decreasing the losses c) no noise is produced d) high output is produced

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RISHAB TRIPATHIReader

Asked: June 20, 2022In: Education

1. How many design steps are available for the design of rotor? a) 5 b) 6 c) 7 d) 8

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