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Alternators

Alternators
In huge alternators, the moving part is

None of the listed here
Poles
Brushes
Armature

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Alternators
The slip rings emplyod in a 3-phase alternator in hydro station are insulated for

Full armature voltage
Low voltage
Very low voltage
Extra high tension voltage

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Alternators
Alternators, now a days, are designed to have poor regulation because

None of the listed here
It limits the value of short circuit current
We employ automatic voltage regulators
It reduces the construction cost

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Alternators
High speed alternators are driven by _____.

Diesel engines
None of the listed here
Hydraulic turbines
Steam turbines

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Alternators
Armature winding of an alternator are generally

Open winding
Partly open and partly closed windings
Closed winding
None of the listed here

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Alternators
In an alternator the armature reaction is mainly influenced by

Total current drawn
The power factor of the load
Speed of the alternator
Short circuit ratio

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MORE MCQ ON Alternators

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