Can I be ordered to take another paternity test for a child in which 1 case was dismissed.

It depends on what the actual ruling was. But it is certainly possible. Without knowing the location and exact circumstance its impossible to be more definitive. Even with details it may be hard to judge.

can i be ordered to take another paternity test for a child in which 1 case was dismissed.

Dismissed with or without prejudice?

What exactly was was dismissed, the request for a paternity test ?