(a)Efficiency at full load and at unity power factor (in %)=   
 
    97.88567  
 
 (b)Efficiency at half load and at 0.8 power factor (in %)=   
 
    96.946195  
 
 (c) Efficiency at 75 percent of load and 0.7 power factor(in %)=   
 
    96.979773  
 
 (d)load KVA at which maximum efficiency will occcur (in KVA)=   
 
    89.442719  
 
 (e)maximum efficiency at 0.85 power factor(in %)=   
 
    97.536766