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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

What is the formula of the efficiency of the machine? a) efficiency = output / output + losses b) efficiency = output * output + losses c) efficiency = output – output + losses d) efficiency = output + output + losses

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

What is the formula of the I2R loss? a) I2R loss = number of conductors / copper loss in each conductor b) I2R loss = number of conductors + copper loss in each conductor c) I2R loss = number of conductors – copper loss in each conductor d) I2R loss = number of conductors * copper loss in each conductor

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

How many factors are used to determine the specific electric loading? a) 2 b) 3 c) 4 d) 5

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

How many factors affecting the size of rotating machines? a) 3 b) 4 c) 5 d) 2

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

What is the formula of the total magnetic loading? a) total magnetic loading = total flux around the armature periphery at the air gap b) total magnetic loading = total number of ampere conductors around the armature for periphery c) total magnetic loading = number of poles/armature total flux d) total magnetic loading = total flux/number of poles

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

What is the formula of the flux density in the gap at a distance ‘x’ from the centre of the pole? a) flux density in the gap at a distance ‘x’ from the centre of the pole = length of air gap at the centre of pole * length of air gap at a distance ‘x’ from the centre of the pole * maximum flux density in air gap b) flux density in the gap at a distance ‘x’ from the centre of the pole = length of air gap at the centre of pole / length of air gap at a distance ‘x’ from the centre of the pole * maximum flux density in air gap c) flux density in the gap at a distance ‘x’ from the centre of the pole = length of air gap at the centre of pole * length of air gap at a distance ‘x’ from the centre of the pole / maximum flux density in air gap d) flux density in the gap at a distance ‘x’ from the centre of the pole = 1/ length of air gap at the centre of pole * length of air gap at a distance ‘x’ from the centre of the pole * maximum flux density in air gap

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

What Is the formula of the permeance of the flux tube considering unit depth in the flux plotting technique? a) permeance of the flux tube = permeability in the air * mean width of flux tube * mean length of flux tube b) permeance of the flux tube = permeability in the air / mean width of flux tube * mean length of flux tube c) permeance of the flux tube = permeability in the air * mean width of flux tube / mean length of flux tube d) permeance of the flux tube =1/ permeability in the air * mean width of flux tube * mean length of flux tube

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

How should the flux distribution be in the case of ac machines? a) sinusoidal b) rectangular c) square d) circular

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

What happens if the field form is symmetrical about the pole axis? a) north and south pole of a machine are similar b) no harmonics c) no cosine terms d) north and south pole of a machine are similar, no harmonics, no cosine terms

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SHUBHANGI MAHAJANEnlightened

Asked: June 22, 2022In: Science & Technology

What Is the formula for the amplitude of the fundamental curve? a) amplitude of the fundamental curve = 1.27 * flux density in the air gap * cosine (phase angle/2) b) amplitude of the fundamental curve = 1.27 / flux density in the air gap * cosine (phase angle/2) c) amplitude of the fundamental curve = 1.27 * flux density in the air gap / cosine (phase angle/2) d) amplitude of the fundamental curve = 1/1.27 * flux density in the air gap * cosine (phase angle/2)

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