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QUESTION
Solvents are among the most commonly used chemicals in workplaces. Workers in different jobs regularly use solvents for degreasing, metal cleaning, and as paint thinners or lubricants.
(a) Outline at least ten factors to be considered when assessing the health risks from exposure to solvents in a factory producing home furniture with a range of painted and varnished finishes.
(b) Solvents have been observed to show neurotoxicity. Explain the term neurotoxicity. List the neurotoxicity symptoms normally associated with short-term and long term exposure to vapours of solvents.
(c) List and elaborate in terms of priority at least five possible measures you would adopt to control the exposure of workers to solvents
(d) An industrial continuous process liberates 0.2 Cubic meter of a solvent chlorobenzene per hour into a room that measures 6.0 meters by 12.0 meters feet and has a ceiling of 4.0 meters height. What minimum general exhaust ventilation in cubic meters per minute is necessary to prevent a general health hazard in this room? The PEL for chlorobenzene is 75 ppm
find the optimum solution or optimum solutions. Does the model have infeasibility, unique optimum, alternative optima, or unboundedness?
question 1a worker is using a hand-held circular saw to cut extruded aluminium strips in the manufacture of storm
economic feasibility of the projec, restrictions are the economics of the project based, technical feasibility for the project
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Calculate the number of steps per second required to deliver fluid at the commanded rate taking into account the step angle of the motor, the gear reduction, the pitch of the drive screw moving the captive nut and finally the syringe calibration
question 1a develop a safety program to help reduce the risks of electrical hazards in a workshopb in terms of
Analysis of the vehicle component: role, work conditions, requirements for the role and
Derive at least four concept designs to satisfy the given specification. Use short written descriptions and simple sketches to illustrate your ideas and what other information would be required to be able to write a more complet..
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Formulate a linear programming model for the above distribution management problem. Define your decision variables and the notation you use for them, express the objective and objective function, and constraints using your decision variables.
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