Question 1: True/False questions True or False 1 The lower the water turbidity, the higher the 6 allowable scour velocity in sedimentation tank.( ) 2 Coagulation process is the conventional process used to remove color, turbidity and bacteria from water. ( ) 7 The process in which coagulant is added with to neutralize the negative charge of the colloidal particles and remove the electrical double layer is called compression of electrical double layer ( 3 The axial-flow impeller provides more turbulence 8 and is used for rapid mixing ( ) The required dose of coagulant can be determined by performing jar test. ( The process in which high concentration of monovalent cation is added to water to compress the ionic cloud is called sweep coagulation. 4 Ferric salts have a wider pH range for effective 9 coagulation than aluminum ( For mixed-media filter the layer of anthracite is used to catch the very fine particles ( 5 Water with low turbidity requires more coagulant 10 For filtration process: when the water level rises to to be treated. ( the point that the filter bed must be cleaned. This point is called terminal head loss (
Question 1: True/False questions True or False 1 The lower the water turbidity, the higher the 6 allowable scour velocity in sedimentation tank.( ) 2 Coagulation process is the conventional process used to remove color, turbidity and bacteria from water. ( ) 7 The process in which coagulant is added with to neutralize the negative charge of the colloidal particles and remove the electrical double layer is called compression of electrical double layer ( 3 The axial-flow impeller provides more turbulence 8 and is used for rapid mixing ( ) The required dose of coagulant can be determined by performing jar test. ( The process in which high concentration of monovalent cation is added to water to compress the ionic cloud is called sweep coagulation. 4 Ferric salts have a wider pH range for effective 9 coagulation than aluminum ( For mixed-media filter the layer of anthracite is used to catch the very fine particles ( 5 Water with low turbidity requires more coagulant 10 For filtration process: when the water level rises to to be treated. ( the point that the filter bed must be cleaned. This point is called terminal head loss (
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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please solve parts 4, 5 and 6. thanks sir
Transcribed Image Text:Question 1: True/False questions True or False
1
6
The lower the water turbidity, the higher the
allowable scour velocity in sedimentation tank.( )
2 Coagulation process is the conventional process
used to remove color, turbidity and bacteria from
water. (
7
The process in which coagulant is added with to
neutralize the negative charge of the colloidal
particles and remove the electrical double layer is
called compression of electrical double layer (
The required dose of coagulant can be determined by
performing jar test. ( )
3 The axial-flow impeller provides more turbulence 8
and is used for rapid mixing ( )
The process in which high concentration of
monovalent cation is added to water to compress the
ionic cloud is called sweep coagulation. (
4
Ferric salts have a wider pH range for effective 9
coagulation than aluminum (
For mixed-media filter the layer of anthracite is used
to catch the very fine particles ( )
5 Water with low turbidity requires more coagulant 10 For filtration process: when the water level rises to
to be treated. (
the point that the filter bed must be cleaned. This
point is called terminal head loss ( )
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