Electrical Machines If the source voltage of a DC motor is increased, which of the following will decrease? Operating speed. Full load current. Starting torque, operating speed, full load current. Starting torque. Operating speed. Full load current. Starting torque, operating speed, full load current. Starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In one 132 / 33 kV transformer the LV resistance is 0.02 per unit. The resistance referred to HV side is 0.16 pu. 0.02 pu. 0.08 pu. 0.01 pu. 0.16 pu. 0.02 pu. 0.08 pu. 0.01 pu. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by f / s. sf / 2. s2. sf. f / s. sf / 2. s2. sf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For higher values of armature, the speed of a DC series motor is Proportional to armature current. Constant. Proportional to the square of armature current. Inversely proportional to armature current. Proportional to armature current. Constant. Proportional to the square of armature current. Inversely proportional to armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Generator works on the principle of production dynamically induced emf. both A and B. None of these static induced emf. dynamically induced emf. both A and B. None of these static induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is the largest conversion device? Induction machine Synchronous machine DC machine All of these Induction machine Synchronous machine DC machine All of these ANSWER DOWNLOAD EXAMIANS APP
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