Electrical Machines From no load to full load the slip will not change. None of these slightly increase. slightly decrease. not change. None of these slightly increase. slightly decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Motors for fans and pumps are selected in the rpm range 375 to 500. 720 to 920. 1440 to 2880. 500 to 720. 375 to 500. 720 to 920. 1440 to 2880. 500 to 720. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for parallel operation of alternators? Terminal voltage is same Frequency should be same Speed of alternators should be same Both 1and 2 Terminal voltage is same Frequency should be same Speed of alternators should be same Both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, the frequency of a voltage at the secondary is any of the above. less than primary. equal to primary. greater than the primary. any of the above. less than primary. equal to primary. greater than the primary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases then field flux remains constant. decreases increases. decreases. remains constant. decreases increases. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous generator is feeding a zero power factor (lagging) load at rated current. The armature reaction is ineffective. cross – magnetizing. magnetizing. demagnetizing. ineffective. cross – magnetizing. magnetizing. demagnetizing. ANSWER DOWNLOAD EXAMIANS APP
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