Which of the following contaminants is recognized by ASHRAE engineers as a benchmark for general indoor air quality?

Identify the two principal types of hazardous radiation. To which class do X-rays belong? Where is hazardous radiation found on the OSHA website?

Pure propane has a characteristic odor.

The toxic effects of acetylene are primarily as 

Carbon Monoxide is colorless, tasteless, and irritating.

Name five chemicals irritants.Where are chemical irratants found in the OSHA standard?

The temperature at which fire on the top of a flammable liquid is sustained is called:

All Class II liquids are combustible liquids. 

Floating roof tanks are more hazardous than fixed roof tanks. 

Carbon disulfide is a systemic poison.