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SSC JE: Electrical Machines Quiz 13
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Question 1
In a single-phase Induction Machine, if Pcr is the total rotor copper loss, Pgf & Pgb loss component of power in forward & backward field, and forward slip is s, then which relation is correct for the total rotor copper loss?
Question 2
Among the following which material is used in PMDC Motors to make permanent magnet?
(I) Alnicos
(II) Ferrites
(III) Rare Earth Material (samarium Cobalt & NIB)
Question 3
The power factor of a squirrel cage induction motor is
Question 4
A hysteresis motor
Question 5
A synchro has
Question 6
A 3 stack stepper motor with 12 numbers of rotor teeth has a step angle of ____________.
Question 7
If the field circuits of an unloaded salient pole synchronous motor gets suddenly open circuited, then
Question 8
A single phase Hysteresis motor
Question 9
A reluctance motor is/are
Question 10
Rotating magnetic fields are also used in 3 phase induction motors rotor developing __________.
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