A. A group of unacclimated carpenters are working on the roof level of a high-rise building. Using the manual hand tools they are removing and installion of a new roof system over the an area of 200 square meters. The workers are wearing heavy coveralls with clothing correction factor of 0.5. The workers will be handling heavy buckets a hot tar and large bundles of roofing shingles (i.e. tiles). The following climate data was obtained in degrees Celsius:

Dry bulb 31 Black bulb 32 Wet bulb 30.7

Determine the following information.

i. Calculate the wet bulb globe temperature value

ii. The appropriate work-rest schedule. Explain your selection.

iii. The designation of work.

B.

A construction worker wearing a dosimeter has recorded the following noise data.

Section 1; 79bBA at 3.5hours

Section 2: 100dBA at 1.5 hours

Section 3: 82dBA at 2hours.

Using the table of equivalent values, determine the percent dosage and the time weighted average.

Steady Sound level (dBA) Duration 79 32 82 16 85 8 88 4 91 2 94 1

C. Determine the Leq for the following information.

Location #1: 86.25dB - 2.0hrs Location 2: 89.75dB - 1.0hrs Location 3: 90.50dB - 3.5hrs Location 4: 95.50dB - 1.5hrs.

Base on your answers is the noise level below the maximum acceptable dose

Very Important info. Please I will like someone who is experience and very knowledgeable in Industrial Hygienge and Toxicology to provide answers to the above questions. So many a time I've gotten answers from CourseHero that were completely out of point and misleading.

Thank you