Question

Answer the following multichoice questions

1. A fundamental concept behind occupational exposure limits is

a	the protection of the health of all workers assuming they are exposed for only a few years.

b	setting a level that protects 95% of worker population

c	setting a level where most workers can be exposed for every day of their expected working life and suffer no serious health effects.

d	setting a level that protects most of the people in the community from serious health effects.

2. A comprehensive exposure assessment strategy involves

a	randome sampling the worst exposures.

b	sampling every employee at least once every five (5) years.

c	random sampling 20% of employees each quarter.

d	random sampling enough employees to develop exposure distribution curve.

3. Which exposure is most likely to result from abrasive blasting operations?

a

Benzene

b

ASbestos

c	Polyaromatic Hydrocarbons (PAH)

d

Silica

Answer 1

Answer 1 - (c)

It is believed that nearly all workers may be repeatedly exposed day after day without adverse health effects as discussed in American Conference of Governmental Industrial Hygienists 1994.

Answer 2- (d)

The typical sampling strategies focus on characterizing the group exposure profile using as few measurements and the resulting decision is then extrapolated to all workers in the exposure group.

Answer 3 - (d)

Workers exposed to respirable crystalline silica used in abrasive blasting are at increased risk of developing a debilitating and often fatal fibrotic lung disease called silicosis.