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Worksheetsurban design lesson 3
Total questions: 10
Worksheet time: 5mins
In the time-area hydrograph method, assume the rainfall intensity is uniform in the catchment
True
False
The time-area method is not recommended for the catchment area is greater than 80 ha.
True
False
There is the statement about the equation except;
Q is the ordinate of hydrograph flow
R is the ordinate rainfall excess hyetograph
A is an area within isohyetal rainfall
t is the time interval
The recommended interval for design rainfall temporal pattern depend on TABLE ______in MSMA 2nd edition 2021, DID Malaysia
2.3
2.4
2.5
2.6
Rainfall excess = Rainfall Temporal Pattern - Losses
There is a list of components of losses except;
Infiltration
Interception
Evaporation
Precipitation
Q3 = _____A1 + _____A2 + ______A3
Fill in the blank of the Time area method equation above.
I3 , I2 , I1
I1 , I2 , I3
R3 , R2 , R1
R1 , R2 , R3
What is peak discharge for this hydrograph?
120
140
160
180
Normalized design rainfall temporal pattern for KUala Lumpur refer Appendix ____________ MSMA 2nd edition 2012, DID Malaysia
2.C1: Region 1 Page 2-32
2.C2: Region 2 Page 2-33
2.C3: Region 3 Page 2-34
2.C5: Region 5 Page 2-36
In the time-area method, the catchment must be divided into a number of isochrones or lines of equal travel time to the outlet.
True
False
Which department in government develops, publishes, and organizes MSMA (Manual Saliran Mesra Alam ) or Urban Stormwater Management Manual.
Jabatan Kerja Raya (JKR)
Jabatan Alam Sekitar (JAS)
Jabatan Pengairan dan Saliran (JPS)
Jabatan Perancang Bandar & Desa Semenanjung Malaysia (PLANMalaysia)
