16. It in good practice to keep the houd bock againit the truck mant as much as possble. truen intise 17. Repairs to industrial trucka should te made only tos penans trainid and authoritat. Tute Prithe 19. If you see a locue object in your peth it is better te romove it oir avold it than to ran over it. pien i doe True Prave 20, in they aik, mechanice may be liftind nat the ferks to reach their wark. Tuen Bratar 21. Under no coonditiom should anyone te pasmitied ander the alrwated forbs er lifa. Inue Ge Falye