Electrical Machines In a DC Shunt Motor if the load current increases then field flux decreases. decreases remains constant. increases. decreases. decreases remains constant. increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dissolve gas analysis of transformer oil is carried out to determine condition of bushings. condition of bushing stud. condition of transformer. condition of transformer oil. condition of bushings. condition of bushing stud. condition of transformer. condition of transformer oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound DC machine has 400 conductors and 8 poles. The voltage induced per conductor is 2 volts. The machine generates a voltage of 400 V. 800 V. 100 V. 200 V. 400 V. 800 V. 100 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC motor with armature resistance of 0.5 ohms connected directly to a 220 Volt supply. If the armature is stationary then the current flowing through the armature is 440 A. 250 A. 570 A. 340 A. 440 A. 250 A. 570 A. 340 A. 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 sf / 2. f / s. sf. s2. sf / 2. f / s. sf. s2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf increases upto a limit and then remains almost constant. remains constant. increases. decreases. increases upto a limit and then remains almost constant. remains constant. increases. decreases. ANSWER DOWNLOAD EXAMIANS APP
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