Chapter 8 Flashcards
1
Q
Types of pipes
A
- Vitrified clay pipes
- UPVC pipes
- Cast iron pipes
- Asbestos cement pipes
2
Q
Types of joints
A
- Flexible rubber ‘O’ ring
- Caulked lead
- Screwed gland flexible
- Spigot and socket
- Cement mortar
- Hepseal flexible
- Hepsleeve flexible
3
Q
Basic requirement for IC/MH
A
- Sustain imposed lod
- Exclude ground water
- Be watertight
4
Q
Uses of IC/MH
A
- Where the line changes in direction
- Where the gradient of the line changes
- Where the is a change in size of drain pipes
5
Q
Sizes of IC/MH varies depending on
A
- Diameter of the pipe
- Number of branches
- Depth of IC/MH
6
Q
Requirements of IC
A
- The base should be 150mm thick
- The concrete base is required when piling is needed
- The roof is covered with 150mm thick RC slab
7
Q
Purpose of IC/MH
A
- To provide means of inspection
- For cleansing choke in case of blockage
- For testing in case of fracture
8
Q
Sizes of IC/MH varies on
A
- Diameters of the pipes
- Number of branches
- Depth of IC/MH
9
Q
Minimum size of IC/MH
A
700x900mm
Ø1050mm (Precast MH)
