RIIMPO317FConduct roller operations RIIMPO321FConduct civil construction wheeled front end loader operations RIIMPO337EConduct articulated haul truck operations Mobile Plant RIIMPO318FConduct civil construction skid steer loader operations RIIMPO323EConduct civil construction dozer operations RIIVEH304EConduct tip truck operations RIIMPO319EConduct backhoe/loader operations RIIMPO324FConduct civil construction grader operations RIIMPO320FConduct civil construction excavator operations RIIMPO326EConduct water vehicle operations RIIHAN308FLoad and Unload Plant