Problem 1: Discuss the interrelationship between safety managers and safety engineers. In your discussion, include the roles and responsibilities of each, and give at least two examples of when the two professions interact with each other.
Problem 2: A manufacturing facility produces automotive components and expects a profit of 12% on each part produced. They have a more serious injury that results in a direct cost of $7,200. The cost of each component sold is $14.75. Calculate the number of parts that are needed to cover this cost of loss. Show all work and make certain that your discussion that follows meets the minimum word requirement.
Problem 3: A local construction company has had a recent injury that involves minor medical treatment at a cost of $500 in total direct costs. As the safety manager, you have been asked to calculate the cost of this injury to determine the volume of business needed to cover this loss (cost). Once you calculate the cost, you should discuss what impact it has on the business. Assume a 4% profit margin. Show all work and make certain that your discussion that follows meets the minimum word requirement.
Problem 4: There are several gas cylinders that are under pressure that are located outside of the maintenance department. As the safety professional, you have been asked a question regarding this issue. Please provide the correct response and discuss your recommendations for any control measures.
a. The volume of the gas cylinder is 25.7 liters and exerts a pressure of 670 mmHg. If part of the gas is used, the pressure drops to 595 mmHg. What would be the remaining volume of gas?
Problem 5: A process involves the removal of oil and other liquid contaminants from metal parts using a heat-treat oven, which has a volume of 15,000 ft3. The oven is free of solvent vapors. The ventilation rate of the oven is 2,100 cfm, and the safety factor (K) is 3. The solvent used in the process evaporates at a rate of 0.6 cfm (cubic feet per minute). The operator would like to know how long it would take the concentration to reach 425 ppm.
Problem 6: Your quality control/quality assurance manager has requested your assistance in the testing and repair facility. One of the test procedures utilizes a radiation source that is emitting gamma radiation at a rate of 50 mrem/hour at a distance of 1 foot. This testing is done for approximately 2 hours per day, 2 days per week. The Occupational Safety and Health Administration (OSHA) has a PEL of 1.25 rem per quarter and 5 rem per year.
a. Determine the employee's exposure for 1 year.
b. Calculate the exposure rate if the employee was moved to a distance of 3 feet from the radiation source.
c. Calculate the exposure rate of the employee if a 5 cm lead shield was installed between the source and the detector. The employee is working at a distance of 1 foot from the source. [µ for lead, (662 keV gamma ray) = 1.23cm-1]