Electrical Machines Which of the following is the largest conversion device? Synchronous machine DC machine Induction machine All of these Synchronous machine DC machine Induction machine All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. decreases increases remains unaffected any of the above decreases increases remains unaffected any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a three phase slip-ring induction motor, brushes are connected to 3 - Φ AC supply. equalizing coils. DC supply. external star-connected resistors. 3 - Φ AC supply. equalizing coils. DC supply. external star-connected resistors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will increase by 100% reduced to half increase by 200% remain unaltered increase by 100% reduced to half increase by 200% remain unaltered ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following losses are negligible in blocked rotor test? both A and B iron loss mechanical loss copper loss both A and B iron loss mechanical loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control provides speed control in one direction only. below rated speed. above rated speed. in both direction. in one direction only. below rated speed. above rated speed. in both direction. ANSWER DOWNLOAD EXAMIANS APP
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