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ALTERNATORS

Alternators
Regulation of alternator supplying reaistive or inductive load is

Always negative
Either positive or negative
None of the listed here
Always positive

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Alternators
In an alternator, armature reaction is considered equivalent to

Fictitious reactance
Fictitious conductance
Fictitious resistance
Fictitious impedance

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Alternators
A lower voltage alternator, for the same power rating, will be

More costly
More efficient
Operating at high rpm
Larger in size

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Alternators
Which of the following prime movers is the least efficient?

Steam engine
Gas turbine
Diesel engine
Steam turbine

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Alternators
In an alternator, the frequency of voltage generated depend on

Number of poles only
None of the listed here
Rotative speed only
Both rotative speed and number of poles

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