Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Surface Water Drainage > Surface Water Drainage Introduction > Flashcards

Surface Water Drainage Introduction Flashcards

(64 cards)

Start Studying
1
Q

The HydroChamber is what shape

A

Arched chamber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The catchpit manholes of the HydroChamber reduces what getting in?

A

Grit & silt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The HydroChamber is made from which material?

A

HDPE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Large diameter HDPE pipe stocked by JDP is supplied by which manufacturer?

A

Asset

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The storage capacity of a crate is what percentage of its total volume?

A

95%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which type of separator would most likely to be used under a car park?

A

Bypass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

If a client asks for 300m³ of Storage what would be the required volume of the crates?

A

315m³

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

If a client asks for 100m³ of Storage what would be the required volume of the crates?

A

105m³

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which of these would not be acceptable for an adoptable storm water management system: Metal tank, GRP tank or Concrete tank?

A

Metal Tank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What do we mean by permeable land?

A

Land where rainwater can soak into the ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Will stormwater reach a watercourse more quickly on permeable ground or on impermeable ground?

A

Impermeable ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The process of storing stormwater in one location before releasing it into the ground in a controlled way is known as what?

A

Attenuation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is meant by an adopted system?

A

A system which is maintained or will be maintained by the water authority.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

An attenuation system is only required when developing a greenfield site. True or False?

A

FALSE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What percentage do you add to the surface area of an attenuation crate membrane for laps?

A

10%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Perforated coil is used is used as carrier pipe.True or False?

A

FALSE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which type of land drainage layout would be used on a railway embankment?

A

Herringbone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Most farm land has never been drained. true or False

A

FALSE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Land drain coil is made from which material?

A

uPVC, HDPE, Polyethylene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Which of the following manufactures land drain coils: Acorn, Kingspan, Polypipe

A

Polypipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

In what lengths are 80mm land coil available?

A

25m, 50m and 100m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

In what lengths are 60mm land coil available?

A

25m, 50m and 150m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

In what lengths are 100mm land coil available?

A

25m, 50m and 100m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

In what length is 200mm land coil available?

A

40m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
In what length is 125mm land coil available?
75m
26
In what lengths are 160mm land coil available?
25m, 45m and 50m
27
Land coil can be recommended for septic tank drainage. True or False
FALSE
28
What type of bore does land drain have?
Ribbed
29
For what is the letters PPG4 an abbreviation ?
Planning Policy Guidelines 4
30
What is the minmum depth of cover at which that land drain should be installed?
450mm
31
What is the minimum depth of cover recommmended for 600 mm land drain?
450mm
32
Which of these customers would be most likely to use Kite Marked land drain - farmer or council?
Council
33
What is the minimum cover to a Graff crate in a non trafficked area?
300mm
34
What is the minimum cover to a Wavin or Polypipe crate in a non trafficked area?
500mm
35
What is the difference in the uses for a Highway Range and an Estate Range cover and frame from Peter Savage?
Highway Range is used in areas of constant traffic and Estate Range for occasional traffic
36
What size is a Wavin or Polypipe Crate?
1.0m x 0.5m x 0.4m
37
What size is a Graff Rainbox Crate?
1.2m x 0.6m x 0.42m
38
Twinwall can be used for a sewerage application . True or False?
FALSE
39
From what material is twinwall manufactured ?
HDPE
40
Twinwall is usually supplied in what lengths ?
6m
41
What is the OD of 150mm JFC twinwall ?
178mm
42
What is the OD of 225mm JFC twinwall ?
265mm
43
What is the OD of 300mm JFC twinwall ?
354mm
44
For what is TEPPFA an abbreviation?
The European Plastic Pipes & Fittings Association
45
What is the OD of 375mm JFC twinwall ?
426mm
46
What is the OD of 450mm JFC twinwall ?
512mm
47
What is the OD of 600mm JFC twinwall ?
680mm
48
What is the maximum depth that twinwall may be installed?
10m
49
Which manufactures supply Twinwall made from recycled materials?
JFC and Polypipe
50
What is the shallowest depth at which you can install twinwall ?
0.5m
51
For what do the letters HDPE stand?
High Density Polyethylene
52
How much does twinwall weigh in comparison to concrete ?
6%
53
JFC twinwall is made from what percentage of recycled materials ?
100%
54
Why is the inner wall of Twinwall smooth ?
To enable increased flow capacity.
55
When using twinwall on highway scheme, is it likely to require BBA approval ?
Yes
56
When using twinwall on farming project would it need to be BBA approved ?
No
57
How would you traditionally join twinwall pipe ?
Push fit coupling
58
Ridgidrain is the name for who's twinwall pipe ?
Polypipe
59
What colour is Ridgidrain internally ?
Blue
60
The Ridgidrain system was the first drainage product in the market to achieve what approval ?
HAPAS
61
For what is HAPAS an abbreviation?
Highway Authority Product Approval Scheme
62
Corripipe is the name for who's twinwall pipe ?
JFC
63
Which Naylor Twinwall does not have BBA approval
N Drain
64
How many seals would you need for a single socket twinwall pipe ?
1

Surface Water Drainage (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions