Electrical Machines Find the number of poles required, when the frequency is 50Hz and speed of the motor is 500 rpm? 5 24 12 10 5 24 12 10 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in delta. star. None of these delta or star according to need. delta. star. None of these delta or star according to need. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the highest possible speed of turbo alternators? 1000 rpm 3000 rpm 4000 rpm 1500 rpm 1000 rpm 3000 rpm 4000 rpm 1500 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC motor under constant terminal voltage what is the relation between torque (Te) and power (P) T∝ P³ T is independent of P T∝ P² T∝ P T∝ P³ T is independent of P T∝ P² T∝ P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is zero. less than normal speed. normal speed. more than normal speed. zero. less than normal speed. normal speed. more than normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ IM in order to eliminate cogging the number of stator slots must be an integral multiple of number of rotor slots. either (B) or (C). unequal to number of rotor slots and skewed in shape. equal to number of rotor slots. an integral multiple of number of rotor slots. either (B) or (C). unequal to number of rotor slots and skewed in shape. equal to number of rotor slots. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS