Related Questions

When the equivalent circuit diagram of double squirrel-cage induction motor is constructed the two cages can be considered
A In series
B In parallel
C In series-parallel
D In parallel with stator
A wound rotor induction motor is preferred, as compared to squirrel cage induction motor, when major consideration is
A Slop speed operation
B High starting torque
C Low windage losses
D All of the above
A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because
A synchronous motor has no slip
B stator supply is not required to produce magnetic field
C mechanical load on the rotor remains constant
D synchronous motor has large airgap
Select the right form of verb: A canophilist went to Kataban and found dogs (keep) in cages for sale."
A had been kept
B kept
C had kept
D were keeping
A Thevenin ac equivalent circuit always consists of an equivalent ac voltage source and an equivalent capacitance.
A True
B False
Norton's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent voltage source in series with an equivalent impedance.
A True
B False
Thevenin's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent current source in parallel with an equivalent impedance.
A True
B False
The power scale of circle diagram of an induction motor can be found from
A Stator resistance test
B No-load test only
C Short-circuit test only
D None of the above
The complete circle diagram of induction motor can be drawn with the help of data found from
A No-load test
B Blocked rotor test
C Stator resistance test
D All of the above
A capacitor-start single phase induction motor is switched on to supply with its capa-citor replaced by an inductor of equivalent reactance value. It will
A start and then stop
B start and run slowly
C start and run at rated speed
D not start at all

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