Electrical Machines What is the frequency of a alternator, if P = number of poles and N = revolution made per second? 120P / N Hz. PN / 2 Hz. 120N / P Hz. 120 / PN Hz. 120P / N Hz. PN / 2 Hz. 120N / P Hz. 120 / PN Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are not a self starting motor? 3-phase induction motor None of these 1-phase induction motor both 1 and 2 3-phase induction motor None of these 1-phase induction motor both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a conductively compensated DC series motor, the compensating winding is provided As a separate unit. In series with the armature winding. In parallel with the field winding. In parallel with the armature winding. As a separate unit. In series with the armature winding. In parallel with the field winding. In parallel with the armature winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 20KVA auto transformer, turn ratio is 0.8. Find the power transferred conductively? 0KVA 4KVA 20KVA 16KVA 0KVA 4KVA 20KVA 16KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breadth factor is defined as the ratio of None of these both 1 and 2. emf with concentrated winding to emf with distributed winding. emf with distributed winding to emf with concentrated winding. None of these both 1 and 2. emf with concentrated winding to emf with distributed winding. emf with distributed winding to emf with concentrated winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. Highest speed of alternator is 3600 rpm. 500 rpm. 600 rpm. 3000 rpm. 3600 rpm. 500 rpm. 600 rpm. 3000 rpm. ANSWER DOWNLOAD EXAMIANS APP
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