Readings

Question 1

Ditch depth

Answer 1

2 ft.

Question 2

Swale depth

Answer 2

depending on the amount of water it carry

Question 3

Slope of residential street

Answer 3

8%

Question 4

How to ensure structure will not fall from sliding?

Answer 4

By determining:
Bearing capacity
Friction coefficient

Question 5

Factors on choosing retaining structures?

Answer 5

function
aesthetics
cost
life expectancy

Question 6

Significant factors for selecting plant material and design irrigation system

Answer 6

growing season of plants
amount and timing of precipitation rates
microclimate

Question 7

Factors that must be considered if the irrigation source is surface water

Answer 7

pumping reqts
filtration of water
seasonal changes in water availability

Question 8

Factors that must be considered at wells (because high water tables are good source of irrigation water)

Answer 8

pumping reqts
water availability
purity of water

Question 9

Liquid effluent and is treated by sewage plant; used at large landscapes

Answer 9

Recycled water

addtl info: it has N, P, K (fertilizer)

Question 10

What are these?

Drain inlets, gutters, infiltration systems

Answer 10

Water collection devices at roads.

Question 11

Is detendtion pond recommended at parking area?

Answer 11

Yes.

Question 12

It affects irrigation design and scheduling

Answer 12

Ability of soil to hold moisture

Question 13

It influences what type of irrigation system to be used

Answer 13

Percolation rates

Question 14

What type of irrigation system applicable for highly permeable soils?

Answer 14

Sprinkler

Question 15

What type of irrigation system applicable for impermeable soils?

Answer 15

Drip system

Question 16

This is needed in order to know the amount of rainfall during growing season; also used for calculating volumes for cisterns

Answer 16

Annual precipitation data

Question 17

Playground protective sufacing ht. and materials

Answer 17

ht. : 300 mm

materials: wood chips, mulch, sand, pea gravel

Question 18

Playground should have shock absorbing material, what is the fall zone ht.?

Answer 18

1800 mm

Question 19

Playground structures spacing

Answer 19

3.6 m

Question 20

Camping and picknicking area size

Answer 20

for every 75-100 campers: 14-17 hectares

Question 21

Family size campsites

Answer 21

4m x 5m

Question 22

Spacing of picnic area clustered 10-100/unit

*50 units/hectare is desirable

Answer 22

10 m

Question 23

Untreated household wastewater except toilet waste. Also, kitchen sink, or from manufacturing or processing

Answer 23

Greywater

Question 24

Pipe for irrigation

Answer 24

Pvc of flexible PE tubing

Question 25

Competition pool size for Interscholastic?

Answer 25

23 m

Question 26

Competition pool size for International?

Answer 26

50 m

Question 27

Pool lanes width

Answer 27

2.1 m

Question 28

Pool Stripes

Answer 28

0.25 m

Question 29

Drinking water sources

Answer 29

groundwater surface water rainwater

Question 30

Causes of contamination of public wells

Answer 30

septic field agricultural practices land use activities

Question 31

8m width | very restricted: flood control, utility r.ow., foothpath

Answer 31

Streamside zone

Question 32

15-30 m width depending on stream order, slope, and 100-yr floodplain, recreational uses, stormwater, bikepath, tree removal

Answer 32

Middle zone

Question 33

filter backyard run off, 8 m (min. setback to structures), unrestricted: residential uses, garden, yard wastes, etc.

Answer 33

Outer zone

Question 34

Critical natural resources and should be inventoried, and protected from urbanization

Answer 34

``` plant and animal habitat surface water resources groundwater recharge areas mining resources prime farmland ```

Question 35

Regional and landscape planning strategies

Answer 35

focuses at urban land uses minimize sprawl to prevent land fragmentation reduce infrastracture and transportation costs

Question 36

natural drainageways should be protected, should sustain native plant, and animal habitat at region

Answer 36

Urbanization

Question 37

Used as strategy for controlling regional growth

Answer 37

Sanitary sewer, and public water service

Question 38

Maximum water table at cemetery

Answer 38

4.5 m

Question 39

Cemetery land allocation for underground interment is 50%, what is the depth of excavation?

Answer 39

1.5 m

Question 40

Cemetery major r.o.w.

Answer 40

8 m breakdown: 6 m-carriageway 1 m both sides-sidewalk

Question 41

Cemetery minor r.o.w.

Answer 41

6 m breakdown: 4.5 m-carriageway 1 m both sides-sidewalk

Question 42

Cemetery supply of water per capita

Answer 42

40 l per capita/day

Question 43

Cemetery sewage

Answer 43

septic tank

Question 44

Cemetery lamp post spacing

Answer 44

distamce at 100 m (max.)

Question 45

Cemetery parking slot land allocation

Answer 45

5% of gross area

Question 46

Topsoil strip depth

Answer 46

4-6 inches

Question 47

Angle of repose for clay

Answer 47

35°

Question 48

Angle of repose for sand, dry

Answer 48

25°

Question 49

Angle of repose for sand, moist

Answer 49

37°

Question 50

Small urban parks size

Answer 50

2-2.4 hectares

Question 51

Ramps should not exceed at slope percentage of?

Answer 51

8.33%

Question 52

Walkways slope (max.)

Answer 52

5% | addtl. info: more than 5% is considered a ramp.

Question 53

Dropped curb is the lowest part of road, what is the ht.?

Answer 53

25 mm

Question 54

Swale centerline and side slopes vary to?

Answer 54

local precipitation rates and soil texture

Question 55

Common threats at grading (bet. adjacent landscape to larger region)

Answer 55

source of pollution changes at water table destruction of wildlife cover migration corridors

Question 56

Grading key tasks:

Answer 56

achieve design's visual and cultural objectives minimize iverall land disturbance small footprint only-means less erosion during construction

Question 57

Playfield

Answer 57

Area grading

Question 58

Buildings

Answer 58

Nodal grading

Question 59

Roads, swales

Answer 59

Linear grading

Question 60

Factors on site (existing) that may limit proposed developments

Answer 60

surface rock soil bearing capacity water table level

Question 61

required at buildings, surrounding spaces, to improve accessibility, and save existing large trees

Answer 61

Retaining structures

Question 62

What govern slopes?

Answer 62

structural reqts of materials issues of accessibility angle of repose

Question 63

Should have facilities for production and dissemination of goods

Answer 63

Industrial park

Question 64

Contains separate office bldgs., supporting uses (e.g. restaurants), open space

Answer 64

Office park

Question 65

It is a hybrid bet. industrial and office, light manufacturing, and warehousing

Answer 65

Business park

Question 66

Pond volume formula

Answer 66

V= 1/3 DA where: V= volume of water in cu. m D= max. pond depth in m A= surface area of pond in sqm.

Question 67

It should be designed with forebay, storage basin, outlet structure. It is a sediment removal (during construction)

Answer 67

Wet detention pond

Question 68

Alternatives of infiltration

Answer 68

``` infiltration basins bioretention ponds recharge trenches infiltration beds (dry; designed to leak at soil) infiltration wells ```

Question 69

june to september monsoon heavy rain shower warm and humid air

Answer 69

Habagat/Southwest monsoon

Question 70

Chief causes of infiltration device failure

Answer 70

Compaction and sedimentation

Question 71

Infiltration + biological processing of pollutants

Answer 71

Bioretention pond

Question 72

Emergency spillway invert elevation

Answer 72

150 mm (above principal spillway)

Question 73

Depth of pond to sustain aquatic life for stormwater/irrigation pond

Answer 73

2-3 m

Question 74

Depth of small garden ponds

Answer 74

450 mm

Question 75

Depth of electrical lines

Answer 75

600 mm

Question 76

Depth of irrigation lines

Answer 76

300-450 mm