Is it possible for a site experienced civil engineer with 15 yrs exp to become planning engg (Primavera) with fair knowledge but no past experience ??

surely , it is favorable to focus on project management studying before learning Primavera Program which is tool for you to schedule project by . 

Sure you can as you have the practical exerience it will be easy to transfere it to a realistic program and not to be easily tricked by the site engineers and can make good recovery plans according to your experience

Dear! Primavera is not Project planning, its just a tool for project planning. You dont need to learn Primavera to be a planning engineer. You have to be what it takes to be a planning engineer, Primavera will only provide a modern touch and extra dimension to your skills as a Planning Engineer. Good Luck!!

Yes you can, with training in Project Management

Primavera is just a tool when coming to planning, so need not to worry when you know activities & time involved when planning a project.

 

Of course, the site engineer can change the career path to a planning engineer because in this case he will be familiar with everything that remains in mind during planning.

Primavera is a project management program and until you can do it well you must learn the science of managing projects first

Yes. with that lenght of experience, he can. because he knows the process from scratch to finish

Planning is a triangle of Time, Cost & Resources. Primavera is just tool for planning. If someone has site experience, definately he knows hot to control resources, cost and time. He also has advantage of sequence of activities involved in particular project from site survey to handing over. Site experience is key advantage to become planning engineer until he also start learing primavera and reach maximum expertise.

Yes, it is possible. But not preferred.

No no no you should have past experience or loving your major until gain more and more experiences