Electrical Machines Tap changer is generally provided in power transformer. current transformer. earthing transformer. voltage transformer. power transformer. current transformer. earthing transformer. voltage transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Skewing of cage rotors offers the following advantages locking tendency is reduced. less noise. all of below. uniform torque. locking tendency is reduced. less noise. all of below. uniform torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC cumulatively compounded motor delivers rated load torque at rated speed. If the series field is short-circuited, then the armature current and speed will increase and decrease respectively both decrease both increase decrease and increase respectively increase and decrease respectively both decrease both increase decrease and increase respectively ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V dc machine has an armature resistance of 1Ω.If the full-load current is 20 A, the differenc in the induced voltages when the machine is running as a motor and as a generator is 50 V 20 V 40 V zero 50 V 20 V 40 V zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. inversely. has no relation. directly. none of these. inversely. has no relation. directly. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC compound motor the field regulator is provided to demagnetize the field partially. limit the armature current. control the field flux. control the armature flux. demagnetize the field partially. limit the armature current. control the field flux. control the armature flux. ANSWER DOWNLOAD EXAMIANS APP
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