Electrical Machines The emf induced in the dc generator armature winding is AC AC and DC DC None of these AC AC and DC DC None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature shaft must be able to withstand bending moment due to weight of the armature. any unbalanced magnetic pull on the armature core. All of these twisting strains due to transmission of torque. bending moment due to weight of the armature. any unbalanced magnetic pull on the armature core. All of these twisting strains due to transmission of torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is more and maximum torque remains constant more and maximum torque decreases less and maximum torque decreases less and maximum torque increases more and maximum torque remains constant more and maximum torque decreases less and maximum torque decreases less and maximum torque increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 2000W 1920W 1820W 1450W 2000W 1920W 1820W 1450W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following type of brush and their application is/are correct electro graphite → large ratings All of these carbon brush → normal ratings copper graphite → low voltage high current density electro graphite → large ratings All of these carbon brush → normal ratings copper graphite → low voltage high current density ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the handle of a three point starter goes to back to OFF position, it may be due to all of these. zero or very low voltage supply. high filed circuit resistance. over load. all of these. zero or very low voltage supply. high filed circuit resistance. over load. ANSWER DOWNLOAD EXAMIANS APP
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