DC Generators The armature of a dc machine is made of ______ Wrought iron Silocon steel Soft iron Cast steel Wrought iron Silocon steel Soft iron Cast steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators Current versus time graph for an ideal commutation is a None of the listed here Straight line Parabola Hydrobola None of the listed here Straight line Parabola Hydrobola ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Carbon is cheap Contact resistance is decreased Carbon lubricates and polishes the commutator None of the listed here Carbon is cheap Contact resistance is decreased Carbon lubricates and polishes the commutator None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a _______ generator vary widely with changes in load current. Shunt Series None of the listed here Flat compounded Shunt Series None of the listed here Flat compounded ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole , lap wound dc shunt generator has an armature winding consisting of 220 turns each of 0.004 Ω. The armature resistance is 0.025 Ω 0.5 Ω 0.055 Ω 1 Ω 0.025 Ω 0.5 Ω 0.055 Ω 1 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is Less than electrical efficiency Equal to electrical efficiency More than electrical efficiency None of the listed here Less than electrical efficiency Equal to electrical efficiency More than electrical efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS