yes we can lode because dg set or alternator can easily 
work on all kind of load lead or leging.

no

A DG is used to supply power when there is power failure 
and not for power factor correction but a Power Capacitor 
is mainly used for power factor correction and is usually 
kept near unity to avoid penality.

No we need not connect the Capacitor to the DG as the DG 
will have the AVR by which the constant voltage is 
maintained even in case the load increase or decrease. When 
the capacitors are connected they act as a load on the 
sytem there by increasing the system load rather than 
helping us.

yes we can connect the load power capacitor on DG sets

Yes, but then Supply voltage will be higher than the 
generated voltage due to ferrenti effect.

YES,CAPACITORS ARE FOR IMPROVING THE RATIO BETWEEN KWH AND 
KVA.SO WE CAN LOAD POWER CAPACITORS ON DG SETS.

Capacitor requirement arises to effective utilization of 
the generated power (to reduce the losses mainly-cu losses 
& line losses) & all switchgear component.In general 
practice Capacitors are not connected on DG Set.As per my 
understanding following are the main reasons for which it 
is not recommendation to run capacitors on DG set :

1. During no load condition capacitor will try to increase 
the voltage level of genrated voltage which can damage the 
insulation of wdg & wdg may get burnt

2. With increase in PF we will not ge much advantage as the 
cable losses are negligle.Load is in nearest proximity of 
the Equipment.

3. Capacitors can be installed at load side