Electrical Machines Iron losses in a DC machine are independent of variation in speed. voltage. speed and voltage. load. speed. voltage. speed and voltage. load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of stator rotating magnetic field (RMF) with respect to rotor is Zero S.Ns Ns Nr Zero S.Ns Ns Nr ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which is the arrangement of windings in a core type single phase transformer? Half lv inside and half hv outside on each core limb Half hv inside and half lv outside on each core limb Sandwiched lv and hv discs on each core limb Lv on one core limb and hv on the other Half lv inside and half hv outside on each core limb Half hv inside and half lv outside on each core limb Sandwiched lv and hv discs on each core limb Lv on one core limb and hv on the other ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltmeter connected across a generator reads voltage same at no load and at full load (rated). The generator is of the type level compound. shunt generator. series generator. short - shunt generator. level compound. shunt generator. series generator. short - shunt generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the full load speed of 3-phase, 50Hz induction motor is 950 rpm, what is its half load speed nearly equals to? 940 rpm 975 rpm 1000 rpm 950 rpm 940 rpm 975 rpm 1000 rpm 950 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does the use the of height flux density value in transformer design lead to? Increase in weight/KVA. Decrease in weight/KVA. Reduced copper loss. Reduced iron loss. Increase in weight/KVA. Decrease in weight/KVA. Reduced copper loss. Reduced iron loss. ANSWER DOWNLOAD EXAMIANS APP
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