DC Generators The yoke of a dc machine is made of Soft iron Cast steel Aluminum Silicon steel Soft iron Cast steel Aluminum Silicon steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature core of a D.C. generator is usually made of Cast-iron Nonferrous material Silicon steel Copper Cast-iron Nonferrous material Silicon steel Copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Electric field None of the listed here Both electrical and magnetic fields Magnetic field Electric field None of the listed here Both electrical and magnetic fields Magnetic field ANSWER DOWNLOAD EXAMIANS APP
DC Generators The dc generator that has poorest voltage is Shunt generator Series generator Over compounded generator Flat compounded generator Shunt generator Series generator Over compounded generator Flat compounded generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Carbon lubricates and polishes the commutator None of the listed here Contact resistance is decreased Carbon is cheap Carbon lubricates and polishes the commutator None of the listed here Contact resistance is decreased Carbon is cheap ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be None of these Greater than 150 V 150 V Less than 150 V None of these Greater than 150 V 150 V Less than 150 V ANSWER DOWNLOAD EXAMIANS APP
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