UNIT 2 TEST

1
Name one thing the level of radon in a building depends on.
2
What is the predominant entry route of radon into the home?
3
The movement of radon through materials is caused by (_______?).
4
Rocks and other building materials can contain uranium and (_______?).
5
Results of state surveys of actual indoor radon concentrations showed significant (________?) within areas, and even adjacent homes.
6
Name one thing transporting radon through the soil to a building requires.
7
Buildings can create vacuums that will draw (_______?) in.
8
As exhaust systems operate, infiltration increases causing (name 1 thing).
9
Openings between floors in a building enhance the upward movement of warm, light air. This enhances the (________?) effect.
10
Frost can "cap" the soil so (________?) pressure of building is exerted on a larger area.
11
Name one effect of rain on the entrance of radon into the home.
12
Name one effect of wind on the entrance of radon into the home.
13
Name two pathways radon can follow to reach a building.
14
The radon source strength is the (_______?) variable on effects of ventilation rates.
15
Higher radon in (_______?) floors, versus (_______?) floors, can indicate an unusual entry mechanism.
16
Name two pressure differentials that can change rapidly.
17
Entry rates can be higher in (name 2 things).