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QUESTION
a) Personal protective equipment are only used when it has proven impractical to control occupational hazards by engineering or other means. Briefly, what are the three key areas you would consider to ensure the successful implementation of a user programme at the workplace?
b) Name two analytical methods commonly used in Industrial Hygiene. Illustrate your answer with two typical examples
c) What are the four significant physical parameters that you would use to assess the thermal comfort of employees working in a hot and humid environment?
d) The Radiation Protection Act 2003 makes provisions for the protection of people against the risks from ionising radiations. What are the health effects associated with exposure to non-ionising radiation widely used in everyday life?Your answer should include three examples of such type of radiation and the precautions to be observed
e) LD 50 is an important toxicity index used in Industrial Toxicology. What is its significance to workers handling pesticides?
question 1a a receptionist who has been working in a large accountancy firm for eleven months has been complaining of
The atmospheric pressure of 100k Pa acts on the other side of the piston. The gas is heated until the volume is doubled and the final pressure is 500 kPa. Calculate the work done by the gas.
Why a substance is being heated at a fast rate the temperature of decomposition
Van Laar equation to calculate activity coefficients, How do I use the Van Laar equation to calculate an activity coefficient for an equilibrium ethanol/water binary system with mole fractions of ethanol in liquid of
Stoichiometry of Ammonia Synthesis, Show that the maximum concentration of NH3 is obtained in an ammonia synthesis process when the ratio of nitrogen to hydrogen
Calculate the energy required to heat 1kg of CO 2 from 400ºC to 600ºC at a constant pressure of 1atm using:-
What does LD 50 mean in Industrial Toxicology and What is its significance to workers handling pesticides What units are used to quantify the standard service illuminance for specific work activities? Name the instrument used to appraise the lig..
Materials Properties, Consider the following three engineering materials: (i) low-carbon steel; (ii) alumina; (iii) glass-fiber reinforced polymer.
Large blooms of algae result from high nutrient loading in rivers and lakes, for example, as a result of runoff of fertilizers from agricultural fields.
Describe the main purpose of the Globally Harmonised System of Classification and Labelling of Chemicals - Outline the bridging principles for classification of mixtures
Draw another diagram overlaying the Pourbaix diagrams for nickel and silver and use this diagram to explain the likely outcome of holding a solution of nickel ions in a silver container.
Determine the values of the constants a and c and state the units and draw the path on a PV diagram also draw Path on the diagram and calculate the heat and work interchanges between the system and surroundings.
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