Chapter 6 Flashcards
What are the two types of ventilation?
Natural and mechanical
What is supply ventilation?
It is PPV pushes into the space causing the contaminated air to exit through any openings.
What is exhaust ventilation?
Exhaust or negative pressure ventilation pulls contaminated air out of the space.
What are supply and exhaust ventilation are classified as?
General Ventilation
What kind of ventilation is used in a specific space?
Local Exhaust
What are the two types of fans?
Centrifugal or axial
What are the two kind of ejectors?
Air Ejector - Air blown through a tube creating low pressure area within the tube
Steam Ejector - Steam is blown through the ejector
What kind of vent is used for entry and venting of the same hole?
Saddle vent
How many air exchanges are you trying to complete before retesting the atmosphere?
7 exchanges
What happens when duct work is straight down into a vertical opening and the fan is not powerful enough to force air into all areas of spaces?
Duct work
What procedure are designed to eliminate the possibility of any substance entering the space by a pipe or duct system?
Blinding or blanking
What temperature does heat exhaustion occur?
99.5 - 101.3
When does heat exhaustion occur?
101.3 - 105
When does a heat stroke occur?
Above 105
