Discuss briefly the assertion that ‘investment by a company in safetyprocedures and training reduces the risk and probability of accidents andis good for business’.2. In systematic Risk Assessment when analysing a hazardous incident it isuseful to answer four basic questions regarding the incident.(a) State these four relevant questions.(b) State briefly the what is meant by a ‘quantitative approach’ to safetyassessment.3. (a) Define the terms ‘hazard’ and ‘risk’ and distinguish between the two.(b) Describe briefly what is meant by ordinary (industrial), residual,process and societal risks, giving examples of each.4. Classify the following situations in terms of type of risk and complete therisk table by assigning probabilities between 0 (not possible) and1 (certain) with 0.1 – 0.3 (low), 0.4 – 0.6 (average), 0.7 – 0.9 (high) forinjury and equipment damage for each hazard. State concisely thereasons foryourchoices and any qualifications you feel are required.Factors such as weather, location and population density should beconsidered and stated.(i) Object falling from scaffold.(ii) Tripping over a low level pipe in a petrochemical plant whilst onnightshift.(iii) Electric shock from overhead cable/line struck by lightning.PDF Editor(iv) Radioactive leak into a river from nuclear power station