Dert Rescuer (DR) Fire & Dert Rescuer (FDR) Fire Rescuer (FR) General Knowledge MCQs PTS Past Papers Rescue 1122 During use of CO2 Extinguisher, its nozzle became cool, then it may be use or not? February 5, 2022 Admin No Comments A: Yes B: No C: Both A & B D: None of these Correct Answer: a View More Details >>