Alternator Multiple Choice Questions and Answers
1. Alternators are usually designed to generate
A.Definite currents
B.Definite power factor
C.Variable frequencies
D.Definite frequencies
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D.Definite frequencies
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2. In an alternator, the armature reaction will be completely magnetizing in case the load power factor is
A.Zero lagging
B.Zero leading
C.0.866
D.Unity
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3. When the speed of an alternator increases
A.The frequency decrease
B.The frequency increases
C.The frequency remains same
D.The frequency changes
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4. In alternators the standrad practice, now a days is to have
A.Rotating field
B.Rotating armature
C.Either of the above
D.None of the above
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5. In huge alternators, the moving part is
A.Brushes
B.Poles
C.Armature
D.None of the above
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