Electrical Machines In a resistance split phase motor, what is the range of torque angle? 90° 25° to 30° 70° to 85° 0° 90° 25° to 30° 70° to 85° 0° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators operating in parallel with rating 50MW and 100MW respectively. Both their respective governor settings are identical as 4%, consider same no load frequency. How will the machine share a common load of 100 MW any of the above 50 MW and 50 MW respectively 66.67 MW and 33.33 MW respectively 33.33 MW and 66.67 MW respectively any of the above 50 MW and 50 MW respectively 66.67 MW and 33.33 MW respectively 33.33 MW and 66.67 MW respectively ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor the speed can be increased by Increasing the field current. Increasing the armature current. Decreasing the field current. Increasing the field current. Increasing the field current. Increasing the armature current. Decreasing the field current. Increasing the field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor may be unbalanced due to uneven air gap. poor lubrication. overload. overheating of winding. uneven air gap. poor lubrication. overload. overheating of winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine is invariably provided with forced ventilation? Fractional horse power slow speed motor. 50 MW generator in a power plant. Hermetically sealed motor of refrigerator. Fractional horse power high speed motor. Fractional horse power slow speed motor. 50 MW generator in a power plant. Hermetically sealed motor of refrigerator. Fractional horse power high speed motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Minimum allowable resistivity of power transformer insulating oil is generally taken as 4 X 1012 Ω - cm at 27°C and 0.4 X 1012 2 X 1012 Ω - cm at 27°C and 0.2 X 1012 1 X 1012 Ω - cm at 27°C and 0.1 X 1012 3 X 1012 Ω - cm at 27°C and 0.3 X 1012 4 X 1012 Ω - cm at 27°C and 0.4 X 1012 2 X 1012 Ω - cm at 27°C and 0.2 X 1012 1 X 1012 Ω - cm at 27°C and 0.1 X 1012 3 X 1012 Ω - cm at 27°C and 0.3 X 1012 ANSWER DOWNLOAD EXAMIANS APP
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