Electrical Machines In electric locomotives which of the following motor are used ? Synchronous motor. DC Shunt motor. DC series motor. DC compound motor. Synchronous motor. DC Shunt motor. DC series motor. DC compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For 250 volt DC Shunt Motor the armature and field resistance are 0.5 ohm and 250 ohm respectively. What will be the back e.m.f. produced when it takes a load current of 21A. 220 V. 150 V. 240 V. 280 V. 220 V. 150 V. 240 V. 280 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? Armature current. All of these. Field flux. Applied voltage. Armature current. All of these. Field flux. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a motor falls from 1100 r.p.m at no-load to 1050 r.p.m at rated load. The speed regulation of motor is 2.57 %. 3.76%. 4.76%. 2.56 %. 2.57 %. 3.76%. 4.76%. 2.56 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne's test is applicable to DC shunt and level Compound motor. DC compound motor. DC series motor. DC Shunt motor. DC shunt and level Compound motor. DC compound motor. DC series motor. DC Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
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