3. Hazards on the construction job site could be caused by: human error equipment failure envirmental condition

4. Headache Feeling of sand in your eyes Red or weeping eyes Trouble opening your eyes Impaired vision Swollen eyes

5. Personal protective equipment

6. oxy acetylene welding cutting outfit

7. Hoses 1.Leaks 2. burns 3. worn places 4. charred sections close to the torch. Regulators When opening valves, always stand to the side. Dirt that is struck in the valve may fly out and cause serious injury.

8. Proper connection hose both good and bad

9. Trenches and Excavations If you are excavating it can result in Cave-ins and falling objects are hazards in these areas. Sometimes if there is a peace of pipe that might have septets on the pipe and it could make a very hazard or environmental disaster.

10. Warnings related to trenches and excavations Never work on the face of either sloped excavations or excavations in which concrete slabs were used to flatten the surrounding area at levels above other workers. The workers below you may not be adequately protected from the hazard of falling, rolling, or sliding materials or equipment.

11. Proximity work

12. Avoid touching high-temperature components

13. Without proper training, no employee is allowed to enter a permit-required or non- permit-required confined space. Employers are required to have programs to control entry to and hazards in both types of confined spaces. Never work alone in a confined space. OSHA requires an attendant to remain outside a permit-required confined space. The attendant monitors entry, work, and exit.

14. Confined space Did you Know

15. Questions 1 1.Oil or grease in contact with _______ will cause an explosion. A. A gas cylinder B. Acetylene C. Compressed oxygen D. Combustible materials

16. Questions 2 2. Flash Burn are caused by exposing your eyes to______. A. Ultraviolet light B. Oxygen and acetylene C. Petroleum products D. Compression hose

17. Questions 3 3. A ___ is attached to a cylinder valve to reduce the high cylinder pressure to the required lower working pressure. A. Safety valve B. Regulator C. Torch assembly D. Compression hose

18. Questions 4 4. A confined space ___. A. Has a limited amount of ventilation B. Has no means of entry C. Is too small to work in D. May be entered by untrained employees

19. Questions 5 5. All internal combustion engines give off a deadly odorless, tasteless, invisible gas called _____as part of their exhaust. A. Carbon trioxide B. Carbon monoxide C. Carbon Dioxide D. Carbon cyanide

20. Review answers 1.D 2.A 3.B 4.A 5.B