Electrical Machines
Which of the following generators are used in arc welding?

 cumulative compound generators
 shunt generators
 series generators
 differential compound generators

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Electrical Machines
If two 8-pole dc machines of identical armature sare wound, one with lap winding and the other with wave winding, then

 wave-wound machine will have more rated current and more voltage
 wave-wound machine will have more rated voltage and less current
 lap-wound machine will have more rated voltage and more current
 lap-wound machine will have more rated voltage and less current

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