66. While the engine is running, a technician pulls the PCV valve out of the valve opening and places his finger over the valve. No vacuum is felt, Techni clan A says that the PCV valve could be stuck closed. Technician B says that the hose between the intake manifold and the PCV valve could be plugged. Who is right? A. Technician A only E. Technician B only C. Both A and B D. Neither A. or B . .. A. Technician A only O B. Technician B only O C. Both A and B O D. Neither A nor B Question 67 67. Technician A says that the specific gravity of the battery electrolyte should be checked after adding water to bring all cells to the proper level, Technician B says that specific gravity should be checked right after the battery is charged. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B O A. Technician A only