RRB/SSC JE Electrical 2019 || AutoTransformer Quiz 1

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Question 1

An autotransformer having voltage transformation ratio 0.8 supplies a load of . The power transferred inductively from the primary to the secondary is

• A
• B
• Czero
• D

Question 2

The autotransformer is preferably employed in situation where voltage transformation ratio is

• Avery low
• Bvery high
• Cnear unity
• Dunity

Question 3

In an autotransformer of voltage ratio V₁ > V2, the fraction of power transferred inductively is proportional to

• AV₁ / (V₁ + V₂)
• BV₂ / V₁
• C(V₁ - V₂) / (V₁ + V₂)
• D(V₁ - V₂) / V₁

Question 4

Secondary winding of an auto transformer is also called_____.

• Acompensating winding
• Bcommon winding
• Ctertiary winding
• Ddamping winding

Question 5

An autotransformer having voltage transformation ratio 0.8 supplies a load of . The power transferred conductively from the primary to the secondary is

• A
• B
• C
• Dzero

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