Heating and cooling loads Correct Answer-1. Heating load: Heat loss
btu/hr
2. Cooling load: Heat gain btu/hr
Test for soil permeability Correct Answer-Percolation test
Septic system distances Correct Answer-Tank and Field
1. From wells - 100' (30m)
2. From Streams - 50' (15m)
3. From PL or Buildings - 10' (3m)
Septic Tank Drainage Correct Answer-1 - Drainage field: Absorption
trenches that drain into field, seeps into soil
2- Seepage Pit: Use when soil is absorbent and water table 2'-0" below
pit
3 - Subsurface sand filter: Use when the other two can't be used.
Distribution pipes surrounded by graded gravel
Heating systems Correct Answer-1. Forced air
2. Hot water
, 3. Electrica
4. Radiant
5. Active solar
Forced Air Heating Correct Answer-Pros:
- Most commonly used
- cost effective
- simple
- easy to service, versatile
Cons:
- Space required,
- head height,
- bulkheads,
- hard to modify post construction,
- mech room size
Hot water heating Correct Answer-Pros:
- Smaller pipes then ducts,
- good control,
- less room
Cons:
- Needs space for boiler,
- not easily adaptable for cooling,
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