occupational health engineering 18. Risk management is the determination of quantitative or qualitative value of risk related to a concrete situation and arecognized threat (also called hazard).TrueFalse19. Unwanted event/incident is an element which alone or in combination has the intrinsic (natural) potential to give riseto risk.TrueFalse20. One of the reasons risk assessment is used is regulatory and under the regulation, the Internal Responsibility Systemimposes a duty on everyone to take action.TrueFalse21. Proactive decision making occurs after the event with the objective of preventing it happening again.TrueFalse22. A tactical decision making in risk assessment is an informal, timely, and rules-based method.TrueFalse23. Slips/lapses are intentional type of human errors.TrueFalse24. Violation is the second most type of human error based on statistics of 25 serious incidents.TrueFalse25. Damaged business reputation is an example of consequences.TrueFalseII. Short Answer Questions: 10 PointsWhat are these acronyms stand for?1. WBGT2.DEEP3. ALARP4. ACGIH5. IRS6. SDS7. FMEA8.ALARA9. WRAC10. HAZOPIV. Problem Solving: 50 PointsProblem 1: Noise (15 Points)A core cutter located near the wall of a core shack 5 m x 5 m x 2.5 m in dimension. Due to the noise coming from the corecutter, the room was built of concrete walls and floor and an acoustic material in the ceiling. The sound power level is in theroom is 110 dB.Calculate the room constant if the reverberation time is 0.35 second.(3 points)а.b. Calculate the sound pressure level at door located 3.75 m opposite the core cutter and at the middle of the room 1.5 m(6 points)If a ventilation fan is located on the wall near the door just below the ceiling opposite the core cutter with a sound(6 points)from the core cutter.С.power level of 98 dB, what is the combined sound pressure level at the center of the room?Problem 2: (10 Points)A large generating set seats at the centre of a rectangular room 5 m x 5 m x 3 m high.Calculate the SWL at 1 m from a point if the SPL at 1 m from the source is 93 dB, radiating spherically. (5 points)b. Calculate the SPL at 5 m from the source.а.(5 points)

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III) short answer question

- Short Answer Questions: 1 hat are these acronyms stand for? WBGT DEEP ALARP ACGIH IRS SDS FMEA ALARA WRAC . HAZOP lem Seling FO Deinto Celui