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Electrical Machines
A crusher is equipped with
Synchronous motor.
Slip ring induction motor.
Reluctance motor.
DC shunt motor.
Synchronous motor.
Slip ring induction motor.
Reluctance motor.
DC shunt motor.
Answer
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Related Question
Electrical Machines
The working principle of transformer depends on
Coulombs law.
Amperes law.
Faradays law of electromagnetic induction.
Newtons law.
Coulombs law.
Amperes law.
Faradays law of electromagnetic induction.
Newtons law.
Answer
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Electrical Machines
Two DC generators having equal open-circuit emfs but slight different load characteristics are operating in parallel, then
the machine with more drooping characteristic will supply less load.
the machine with more drooping characteristic will supply more load.
the machine will share load equally.
None of these
the machine with more drooping characteristic will supply less load.
the machine with more drooping characteristic will supply more load.
the machine will share load equally.
None of these
Answer
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Electrical Machines
In a dc machine, 1. physically, the brush axis is along the direct axis 2. physically, the brush axis is along the interpolar axis 3. schematically, the brush axis is along the direct axis 4. schematically, the brush axis is along the quadrature axis 5. armaturemmf is directed along the brush axis From these, the correct statements are
2, 4, 5
1, 4,5
2, 3, 5
1 , 3, 5
2, 4, 5
1, 4,5
2, 3, 5
1 , 3, 5
Answer
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Electrical Machines
In a 1-phase induction motor, if the forward torque slip is S, what is the backward torque slip?
S
1-S
1/S
2-S
S
1-S
1/S
2-S
Answer
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Electrical Machines
Damper winding is used to
increase the load current.
suppress the hunting.
both 1 and 2.
decrease the load current.
increase the load current.
suppress the hunting.
both 1 and 2.
decrease the load current.
Answer
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