DC Motors If a dc motor is comnected across the AC supply it will Run at normal speed Burn due to heat produced in the field winding by eddy currents Run at lower speed Not run Run at normal speed Burn due to heat produced in the field winding by eddy currents Run at lower speed Not run ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Remains same Decrease Increase Become zero Remains same Decrease Increase Become zero ANSWER DOWNLOAD EXAMIANS APP
DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The motor will stop The motor will run noisy The armature may burn The motor will continue to run The motor will stop The motor will run noisy The armature may burn The motor will continue to run ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is Zero Normal speed More than the normal speed Loss than the normal speed Zero Normal speed More than the normal speed Loss than the normal speed ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is always below the centroid of the area None of these at the centroid of the submerged area always above the centroid of the area always below the centroid of the area None of these at the centroid of the submerged area always above the centroid of the area ANSWER DOWNLOAD EXAMIANS APP
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