Is it possible to assign score to SCORM Role-play content, and export the score to LMS(Moodle)?

If the object already has a 'score' attached to it then that will be available to Moodle.
You can add a score or increment a particular score value by attaching an action to an object.
The CMI for courselab carries a lot of info from the module, which parts of this are available are dependent on the LMS reading them