DC Generators The field coil of dc generator are usually made of Cast iron Carbon Copper Mica Cast iron Carbon Copper Mica ANSWER DOWNLOAD EXAMIANS APP
DC Generators The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage Will be less than 250 V Will always be 250 V May be greater or less than 250 V None of these Will be less than 250 V Will always be 250 V May be greater or less than 250 V None of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Contact resistance is decreased None of the listed here Carbon lubricates and polishes the commutator Carbon is cheap Contact resistance is decreased None of the listed here Carbon lubricates and polishes the commutator Carbon is cheap ANSWER DOWNLOAD EXAMIANS APP
DC Generators Stray losses consist of Mechanical and copper losses Magnetic and copper losses Magnetic and mechanical losses None of the listed here Mechanical and copper losses Magnetic and copper losses Magnetic and mechanical losses None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Due to armature reaction, the main pole flux of a dc generator is Distorted only Weakend only Weakened as well as distorted None of the listed here Distorted only Weakend only Weakened as well as distorted None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of Shunt field copper loss and mechanical loss Iron loss and mechanical loss Armature copper loss and iron loss Total copper loss and mechanical loss Shunt field copper loss and mechanical loss Iron loss and mechanical loss Armature copper loss and iron loss Total copper loss and mechanical loss ANSWER DOWNLOAD EXAMIANS APP
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