CWB Module 1 question well answered graded A+ 2023/2024

CWB Module 1WHMIS stands for: a) Workers Health Monitoring System b) Workplace Hazardous Materials Information System c) Workers for a Healthy Manufacturing Industry Society - correct answer b) Workplace Hazardous Materials Information System What are three ways that WHMIS information is conveyed to the workplace? - correct answer 1. Training 2. Labels 3. MSDS (Material Safety Data Sheet) If you wish to find out the hazardous ingredients of a product and their toxicological properties, where would you look? - correct answer MSDS (Material Safety Data Sheet) Is there a Canadian Standard for safety in welding? - correct answer Yes, CSA W117.2 What is the typical three-phase input voltage to welding machines in most shops? - correct answer USA: 480V CA: 600V True or False? The voltage on the secondary side of welding machines is always so low there can never be a danger of electric shocks? - correct answer False True or False? The cable from the workpiece back to the welding machine is correctly called the "ground lead" - correct answer False, it is called the work lead. Of the two classes of radiation, which is the one that can damage living cells? Give two examples. - correct answer Ionizing radiation. Examples: X-rays or Gamma-rays. Is it true that you could suffer from "sunburn" on exposed skin by just being near a welding arc? - correct answer Yes, true. What is the suggested shade number for a welder's helmet when using 5/32 in SMAW electrode at 150A? - correct answer 10 Which of the following situations is most likely to produce the greatest amount of direct and reflected ultraviolet light? a) resistance welding two thin steel sheets b) gas metal arc welding aluminium plate c) submerged arc welding - correct answer b) gas metal arc welding aluminium plate Approximately how far could spatter travel when welding or cutting on structure about 2.5 m high? a) Possibly up to 6 m b) no more than 1 m c) up to 20 m - correct answer a) Possibly up to 6 m What is the suggested shade number for a welder's helmet when air carbon arc cutting light at <500 A? - correct answer 10 For the SMAW process, which contributes more to the production of fume: base metal or electrode? - correct answer electrode Some copper alloys contain a very toxic component. What is it? - correct answer Beryllium Which of the following processes is likely to have the greatest fume generation rate? a) SMAW b) SAW c) FCAW - correct answer c) FCAW What label/class? Materials such as carbon dioxide and argon that are gases at room temperature (20C) and are kept under pressure. - correct answer Class A- Compressed Gas (e.g. Welding gases in cylinders) What label/class? Materials causing other toxic effects such as long-term effects on health. Carcinogens (cancer causing substances) - correct answer Class D- Poisonous and Biohazardous Infectious (e.g. Welding fumes) What label/class? Materials/Organisms causing infection deseases (bacteria and viruses) - correct answer Class D- Poisonous and Biohazardous Infectious (e.g. Hepatitis B) What label/class? Materials that will destroy human tissue and other materials? - correct answer Class E- Corrosive (e.g. sulphuric acid, caustic soda)