problem1. describe the characteristics of confined space.
problem2. By reference to entry in a confined space, describe briefly the factors which should be considered in the design and operation of a permit-to-work system.
problem3. Is permit-to-work system safe system of work? Give reason for your answer.
problem4. What is the “nature of a permit-to-work?”
problem5. Illustrate four main principles to be observed for an effective permit-to-work.
problem6. Illustrate the different ways in which chemical hazards may exist.
problem7. Illustrate the main types of hazard which arise from the use of chemicals.
problem8. Outline the precautions for safe working with the chemicals.