Electrical Machines The power flow of a dc motor, with respect to a DC generator is increased. modified. reversed. none of these. increased. modified. reversed. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to residual flux. high field resistance. high speed. magnetic inertia. residual flux. high field resistance. high speed. magnetic inertia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a dc machine shunt resistance and armature resistance values are high and low high and high low and high low and low high and low high and high low and high low and low ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC compound motor can be reversed by interchanging armature connections. series field connections. shunt field connections. armature or field connections. armature connections. series field connections. shunt field connections. armature or field connections. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to infinity. two. unity. zero. infinity. two. unity. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following methods are used to control the speed of DC motors is All of these supply voltage control armature circuit resistance control field current control All of these supply voltage control armature circuit resistance control field current control ANSWER DOWNLOAD EXAMIANS APP
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