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MCQs 1: Which of the following methods may be used to convert A.C. system to D.C ?

Rectifiers Motor converters Motor-generator sets Rotary converters All of the above
Answer Explanation

MCQs 2: A synchronous converter can be started______________?

by means of a small auxiliary motor from AC. side as induction motor from D.C. side as D.C. motor any of the above methods none of the above methods
Answer Explanation

MCQs 3: Which of the following are the applications of D.C. system ?

Battery charging work Arc welding Electrolytic and electro-chemical processes Arc lamps for search lights All of the above
Answer Explanation

MCQs 4: In a single phase rotary converter the number of slip rings will be_____________?

two three four six none
Answer Explanation

MCQs 5: A rotary converter combines the function of____________?

an induction motor and a D.C. generator a synchronous motor and a D.C. generator a D.C. series motor and a D.C. generator none of the above
Answer Explanation

MCQs 6: With a motor converter it is possible to obtain D.C. voltage only upto__________?

200-100 V 600—800 V 1000—1200 V 1700—2000 V
Answer Explanation

MCQs 7: Which of the following is reversible in action ?

Motor generator set Motor converter Rotary converter Any of the above None of the above
Answer Explanation

MCQs 8: A rotary converter is a single machine with______________?

one armature and one field two armatures and one field one armature and two fields none of the above
Answer Explanation

MCQs 9: A rotary converter in general construction and design, is more or less like___________?

a transformer an induction motor an alternator any D.C. machine
Answer Explanation

MCQs 10: Which of the following metals is generally manufactured by electrolysis process ?

Load Aluminium Copper Zinc None of the above
Answer Explanation

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