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DC Generators

DC Generators
In a D.C. generator the critical resistance refers to the resistance of

Field
Brushes
Load
Armature

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DC Generators
The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be

150 V
Less than 150 V
None of these
Greater than 150 V

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DC Generators
Stray losses consist of

Magnetic and mechanical losses
None of the listed here
Mechanical and copper losses
Magnetic and copper losses

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DC Generators
The armature winding of a dc machine is place on the rotor to ______

Reduce losses
Facilitate commutation
Reduce armature reaction
Save iron

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DC Generators
In dc generator, the constant losses is equal to

Stray losses
Mechanical losses
Stray losses plus shunt cu loss
None of the listed here

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DC Generators
For a D.C. machines laboratory following type of D.C. supply will be suitable

Induction motor D.C. generator set
Mercury are rectifier
Rotary converter
Synchronous motor D.C. generator set

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