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GATE EE : Electrical Machines Champion Quiz 5
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Question 1
Group I lists different applications and Group II lists the motors for these applications. Match the application with the most suitable motor and choose the right combination among the choices given thereafter
Question 2
A rotating electrical machine having its self-inductances of both the stator and the rotor windings, independent of the rotor position will be definitely not develop
Question 3
For a linear electromagnetic circuit, the following statement is true.
Question 4
The type of single-phase induction motor having the highest power factor at full load is
Question 5
A permanent magnet dc commutator motor has a no load speed of 6000 rpm when connected to a 120V dc supply. The armature resistance is 2.5 ohms and other losses may be neglected. The speed of the motor with supply voltage of 60V developing a torque 0.05 Nm, is:
Question 6
The corona loss on a particular system at 50 Hz is 1kW/km per phase. The corona loss at 60 Hz would be
Question 7
The full-load copper loss and iron loss of a transformer are 6400 W and 500 W, respectively. The above copper loss and iron loss at half load will be
Question 8
In a transformer the core loss is 100 Watt at 40Hz and 72 Watt at 30 Hz, then eddy current and hysteresis losses at 50 Hz respectively are
Question 9
Why is a centrifugal switch used in a single-phase induction motor?
Question 10
Which one among the following has the highest numerical value in a stepper motor?
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Jul 23ESE & GATE EE
