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WorksheetsStormwater Management
Total questions: 20
Worksheet time: 2hrs 40mins
‘The pavements are raised and curb in order to form an edge channel, to which the road drainage can be directed from the center line of the road’
Identify which surface drainage based on this statement
Valley drainage
Surface edrainage
Crowned drainage
Sheet drainage
Explain why infiltration trenches is not suitable for sites with fine particles soils?
High clogging potential without effective pre-treatment
The groundwater maybe affected by the laying of new drains and foundations, and this can adversely affect trees and other vegetation which is to be retained
The advantage of ensuring that surface water does not drain towards the buildings , but can appear strange when applied to large areas;
Holes filled with stones, into which drainage water is directed so it is not suitable
Which the drainage water is directed to the center of a road or path?
Double slope drainage
Sheet drainage
Crowned drainage
Valley drainage
Which bond is suitable for vertical strength
Herringbone bond
Flemish bond
Stack bond
California weave
Which bricks bond that are not suitable for vertical strength?
Stack bond
Flemish bond
English bond
English cross
List the composite materials for concrete
List 5 types of concrete
Why does Broom finish and Salt finish suitable for wet areas?
Has an effects such as waves and the sea
Providing greater uniformity and eliminating the need to dress the stone
The concrete surfaces create small ridges that provide for traction control and slip-resistant
Making the pavement more compact and less likely to loosen up over time.
Identify 5 type of concrete finish
There 3 types of timber . Name it and their function as building materials
Why does outlet pipe for detention pond is located at the bottom of pond?
The outlet pipe (or control device) is placed at the bottom elevation of the detention volume to allow the pond to drain dry.
The groundwater outlet pipe maybe affected by the laying of new drains and foundations, and this can adversely affect trees and other vegetation which is to be retained .
Ensuring that surface water does not drain towards the buildings , but can appear strange when applied to large areas;
Infiltration devices ,which are trenches or basins , rather like infiltration drains or soakaways, designed to direct water into the ground.
Which one is the characteristic of retention pond
The pond is intended to drain the stormwater within a
period of time to make the volume available for the
next storm event.
Help control the rate of flow by using a control device that
maintains the pre-development rate of flow.
Retention ponds require more area than a detention pond.
Shallow landscaped depressions which are typically under drained and rely on engineered soils,
List down 2 primary functions of geosynthetics
What is the purpose of Brick bonding?
There are two types of metal which are
Ferrous and non ferrous
Bronze and Lead
Stainless steel and steel
Alloy and aluminum
This type of steel makes the metal harder and stronger than stainless steel, but it is also less malleable.
Metal
Bronze
Stainless steel
Carbon steel
List down 3 types of retaining structures
"The piles are driven into the soil , typically
leaving two-thirds of their length
underground and one-third above the
surface ."
Which type of wall is this?
Piled wall
Anchored wall
Semi gravity wall
Cantilever wall
Function of "the ha-ha" wall
What is the alternative material to glass?
Laminated glass
Wired glass
Polymers
Tempered glass
