Quearn Latest Questions

• 0

imran

Asked: April 30, 2023In: Education

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

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

What is the formula for the flux density in stator core? a) flux density in stator core = maximum flux / length of the iron * depth of stator core b) flux density in stator core = maximum flux * length of the iron * depth of stator core c) flux density in stator core = maximum flux / 2 *length of the iron * depth of stator core d) flux density in stator core = maximum flux * length of the iron / depth of stator core

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

The flux density of the stator core should not exceed 1.3 weber per m2 . a) true b) false

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

The flux density of the high torque machines is 1.8 weber per m2 . a) true b) false

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

What is the formula for the area required for the insulated conductors? a) area required for the insulated conductors = total number of conductors per slot * 0.785 / diameter of insulated conductor2 b) area required for the insulated conductors = total number of conductors per slot / 0.785 * diameter of insulated conductor2 c) area required for the insulated conductors = total number of conductors per slot * 0.785 * diameter of insulated conductor2 d) area required for the insulated conductors = 1/total number ofconductors per slot * 0.785 * diameter of insulated conductor2

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

What is the relation of the number of slots with the leakage reactance? a) small number of slots, high leakage reactance b) large number of slots, high leakage reactance c) large number of slots, small leakage reactance d) small number of slots, small leakage reactance

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

What is the range of the current density for the open type motors split phase, capacitor and repulsion start motors? a) 4-5 A per mm2 b) 3-4 A per mm2 c) 2-4 A per mm2 d) 1-4 A per mm2

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

How many design data are present in the design of the stator? a) 6 b) 7 c) 8 d) 9

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

What is the value of the stator induced voltage with respect to the supply voltage? a) stator induced voltage = 95% of supply voltage b) stator induced voltage = 90% of supply voltage c) stator induced voltage = 85% of supply voltage d) stator induced voltage = 80% of supply voltage

• 0

electric

• 0

imran

Asked: April 30, 2023In: Education

What is the formula of the maximum flux in the running winding? a) maximum flux = flux * pole b) maximum flux = flux/pole c) maximum flux = flux / turns d) maximum flux = flux * turns

• 0

electric