16. It is good practice to keep the load back against the truck mast as much as possible. True false 17. Repairs to industrial trucks should be made only by persons trained and authorized. True false 18. If you see a loose object in your path it is better to remove it or avoid it than to run over it. True False 19. Slippery spots caused by oil and water may increase braking distance or cause loss of steering control Irue False 20. If they ask, mechanics may be lifted on the forks to reach their work. True false 21. Under no conditions should anyone be permitted under the elevated forks or lifts. True False 22. When loading a highway truck or trailer, it's wheels should be chocked or blocked, even though the di