Answer / madhu

A check
B check
c check
D check

Answer / satish reddy

A check has to be daily mainteance,                                                                            
                      
  B check 300 hours of techo meter of dg has to do,


  

  



                                                                  C check  1500 hours .same thing is above,


  D check has to be done every 4500 hours.

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