Answer problems $2-6.$ An employee works in an environment where the noise level is $104$dBA for $10$ hours. The earmufis provided have an NRR of $27$ dBA. What should you do to have exposure to below the PEL?

An employee works in an environetent where the noise level is $100$dBA for $12$ hours. The earplugs provided have an NRR of $30$ dBA. Do the earplugs provide sufficient protection for the employees? If not, what can be done to protect the employees?

An employee works in an environment where the noise level is $99$ dBA for $10$ hours. The Barplugs that the employer provides has an NRR of $31$ dBA. Do the carplugs provide sufficient protection?

An employee works in an environment where the noise level is $104$ dBA for $8$ hours. The carmufis provided have an NRR of $27$ dBA. Do the carmufis provide sufficient protection for the employee? If not, what should the NRR be to protect the employee?

An employee works in an environment where the noise level is $102$dBA for $8$ hours. The earplugs provided have an NRR of $33$ dBA. Do the earplugs provide sufficient protection for the employees? If not, what can be done to protect the employees?

Machine A has a sound level of $85.$ Machine B has a sound level of $85.$ Employees work a $12-$hour shif operating the $2$ machines that are approximately $5$ feet apart. Is hearing