SECTION C: OCCUPATIONAL HEALTH $(101=10$ MARKS$)$

A very fine solid aerosol particle formed when a vapourized solid

condenses in air is a definition of

A$.$ Vapour

B$.$ Dust

C$.$ Mist

D$.$ Fume

Which statement about ingestion as a route of entry into the workers body

by workplace chemicals is incorrect?

A$.$ Ingestion is usually a significant way in which chemicals gain entry into the

body

B$.$ Food contamination with workplace chemicals can be a way chemicals can

enter the body by ingestion

C$.$ Hand washing is a method of entry of chemicals by ingestion can be reduced

D$.$ Eating areas should be located in a part of the workplace removed from

chemical contamination

To identify peak or ceiling concentrations of contaminant during a time of

high production, the occupational hygienist will likely choose which air

sampling method?

A$.$ Area sampling

B$.$ Integrated sampling

C$.$ Personal sampling

D$.$ Grab sampling

Which is not a form of non$-$ionizing radiation?

A$.$ Visible light

B$.$ Gamma radiation

C$.$ Ultraviolet radiation

D$.$ Microwave radiation

Why are exposure control strategies $($administrative$,$ work practices and

PPE$)$ less effective in preventing injuries than hazard control strategies

$($elimination$,$ substitution, and engineering$/$design controls$)?$

A$.$ They are much more expensive to implement

B$.$ They work only as long as people behave

C$.$ They focus on changing the hazard, not the exposure

D$.$ They are not permenant in nature