INDUSTRIAL TECHNOLOGY -METAL ASSOCIATED THEORY TOPICS TOPIC 1. OCCUPATIONAL HEALTH & SAFETY (OH&S)

Shoes Loose Clothing- Apron- Jewellery- Long Hair- When should eye protection be worn? Why? When should ear muffs be used? Fully covered leather, no sandals or thongs. Tucked in, tie removed when using machines. Worn at all times and tied correctly. This should not be worn, remove if possible. Tied back or contained in a hair net. When using any machine or heating metal using flammable gases. Goggles should also be worn when chipping metal with a cold chisel. Eye injuries may heal but scarring will impair vision. When working with loud machinery or beating metal for an extended period of time.

Why is it dangerous to run in the metalwork room? What other type of behaviour is strictly banned in the room because of the possibility of accidents? How can you reduce the risk of tripping or stumbling in the room? What special precautions should be taken with portable power tools? You can fall and hit your head on protruding machinery. Practical jokes, wrestling or simply pushing another person is potentially dangerous. Remove scraps and loose material from the floor, replace metal stock in racks after cutting to length. Check the condition of the lead, check if the tool has a current “safety tag” and avoid placing the lead where it could be damaged by the power tool.

Why is it dangerous to operate the lathe when it has the guards removed? When should guards be removed from machines? When should they be replaced? What may cause loss of concentration? What is a common cause of accidents with the drill press? When using the hacksaw what care should be taken? Hands may get caught and dragged into moving parts causing serious injury. Clothing may also be dragged in placing the operator at risk. Only when the machine is turned off and adjustments or maintenance is being carried out. Before turning the machine on again. Other persons talking to the operator or otherwise distracting him/her. Metal that is not held in the vice may spin around as the drill breaks through the underside. Reduce pressure as you near the end of the cut.

What type of fires can the extinguisher in the metalwork rooms be used on? Describe two ways the fire blanket can be used? What is the signal for a full school evacuation? How can you reduce the incidence of burns? Describe the correct way to lift heavy objects? Why should all accidents be reported immediately? What is an `eye wash’? How is it performed? Electrical and oil based (petroleum) fires. It can be used to smother the flames or a person on fire can be rolled up inside the blanket to extinguish the flames. Handling hot metal with tongs or gloves. Cooling metal immediately after heating, and treating all metal near fire bricks with caution. Keep your back straight and bend your legs. So the teacher can render first aid and to reduce the risk of infection. A method of flushing the eye with water, it can be done by squeezing a small bottle of ‘eye wash’ into the eye. Continuous short bursts of the school bell.