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Drainage Practice Questions - Student Feedback Exam

Total questions: 57

Worksheet time: 30mins

Name
Class
Date
1.

What is the typical guttering fall ratio for domestic installations?

a)

1:700

b)

1:600

c)

1:1000

d)

1:60

2.

What is the standard spacing between fascia brackets on guttering?

a)

500mm

b)

750mm

c)

1000mm

d)

1500mm

3.

Which material was commonly used for guttering in older systems?

a)

PVCu

b)

Copper

c)

Cast iron

d)

Extruded Aluminium

4.

Which modern material is commonly used for guttering today?

a)

PVCu

b)

Cast Iron

c)

Copper

d)

Aluminium

5.

What is the purpose of a rainwater system?

a)

To store drinking water

b)

To remove rainwater from the property to a safe place

c)

To heat rainwater for domestic use

d)

To recycle greywater

6.

What is the correct order for installing guttering?

a)

Establish Position of the Running outlet

b)

Establish high point of the gutter and fix fascia bracket at high point

c)

Using 1:600 fix the running outlet at the low point

d)

Use a string line to screw further fascia brackets

1)
2)
3)
4)
7.

What is the standard diameter for a basin waste pipe?

a)

50mm

b)

32mm

c)

110mm

d)

22mm

8.

What is the typical diameter of a bath or kitchen sink waste pipe?

a)

22mm

b)

40mm

c)

32mm

d)

110mm

9.

Identify this stack system

a)

Primary ventilated stack system

b)

ventilated branch discharge

c)

Secondary ventilated stack system

d)

Secondary branch Ventilation

10.

Identify this stack system

a)

Primary ventilated stack system

b)

Ventilated branch discharge

c)

Secondary ventilated stack system

d)

Secondary branch Ventilation

11.

Identify this stack system

a)

Primary ventilated stack system

b)

Ventilated branch discharge

c)

Secondary ventilated stack system

d)

Secondary branch Ventilation

12.

Which building regulation covers drainage and waste disposal?

a)

Part A

b)

Part G

c)

Part H

d)

Part M

13.

Which building regulation covers Sanitation?

a)

Part A

b)

Part G

c)

Part H

d)

Part M

14.

What is the minimum trap seal depth for a WC/Toilet?

a)

25mm

b)

100mm

c)

75mm

d)

50mm

15.

What is the maximum length for a 32mm waste pipe without additional ventilation?

a)

1.5m

b)

2.5m

c)

4m

d)

1.7m

16.

What is the maximum length for a Toilet/WC 110mm waste pipe without additional ventilation?

a)

5m

b)

6m

c)

4m

d)

8m

17.

From the invert level to the highest connection in low rise buildings it must be at least...?

a)

750mm

b)

1,000mm

c)

450mm

d)

100mm

18.

From the invert level to the highest connection in multi-storey buildings it must be at least...?

a)

750mm

b)

1,000mm

c)

450mm

d)

100mm

19.

What is the minimum distance to avoid crossflow between pipes?

a)

100mm

b)

250mm

c)

200mm

d)

150mm

20.

What is the correct name for this tool?

a)

Drain Off Cup

b)

Double screw

c)

Auger

d)

Force cup

21.

What is the correct name for this tool?

a)

Hand Spinner/Auger

b)

Double screw

c)

Plunger

d)

Force Cup

22.

What is this item?

a)

Downpipe clip

b)

Soffit bracket

c)

Fascia bracket

d)

Gutter spike

23.

What is this item?

a)

Back drain prevention valve (BDPV)

b)

Temporary Boss Release Valve (TBRV)

c)

Air Admittance Valve (AAV)

d)

Water Admittance Valve (WAV)

24.

What does an AAV (Air Admittance Valve) do?

a)

Blocks backflow

b)

Allows air in and keeps gases out

c)

Prevents trap seal loss

d)

Measures airflow

25.

When must a stub stack be ventilated?

a)

Always

b)

If it’s more than 1 metre tall from invert of drain

c)

If it exceeds 2 metres in height of invert of drain

d)

Never

26.

A soil stack must terminate 900mm above a window if its less than what distance from a window?

a)

1000mm

b)

2000mm

c)

3000mm

d)

4000mm

27.

Which disease can result from contact with untreated sewage?

a)

Influenza

b)

COVID-19

c)

Hepatitis

d)

Norovirus

28.

Identify

a)

Bottle trap

b)

P trap

c)

Running trap

d)

Drum trap

29.

Identify

a)

Bottle trap

b)

P trap

c)

Running trap

d)

Drum trap

30.

Identify

a)

Self-Sealing waterless valve

b)

P trap

c)

Running trap

d)

Drum trap

31.

What trap seal loss is this?

a)

Self-Siphonage

b)

Induced Siphonage

c)

Compression

d)

Capillary Action

32.

What trap seal loss is this?

a)

Self-Siphonage

b)

Induced Siphonage

c)

Compression

d)

Capillary Action

33.

What trap seal loss is this?

a)

Self-Siphonage

b)

Induced Siphonage

c)

Compression

d)

Capillary Action

34.

What trap seal loss is this?

a)

Self-Siphonage

b)

Induced Siphonage

c)

Compression

d)

Capillary Action

35.

What trap seal loss is this?

a)

Self-Siphonage

b)

Induced Siphonage

c)

Evaporation

d)

Capillary Action

36.

What is induced siphonage?

a)

When water is sucked from a trap due to high temperatures

b)

When negative pressure from another appliance removes trap water from another appliance

c)

When the trap overflows due to blockage

d)

When the seal breaks due to wear

37.

In hotter climates, what type of trap seal loss is at risk

a)

Self-Siphonage

b)

Evaporation

c)

Induced Siphonage

d)

Capillary Action

38.

Which type of drainage system is this?

a)

Combined system

b)

Separate system

c)

Partially Separate System

d)

Sealed system

39.

Which type of drainage system is this?

a)

Combined system

b)

Separate system

c)

Partially Separate System

d)

Sealed system

40.

Which type of drainage system is this?

a)

Combined system

b)

Separate system

c)

Partially Separate System

d)

Sealed system

41.

What British Standard covers gravity drainage systems?

a)

BS EN 12756

b)

BS 12056

c)

BS 4514

d)

BS 8000

42.

How high can WCs/Toilets be stacked high when storing?

a)

2

b)

3

c)

4

d)

6

43.

What is this system?

a)

Grey water recycling

b)

Rainwater Harvesting

c)

Underground water storage system

d)

Rainwater Collection System

44.

What is greywater recycling?

a)

Using rainwater to flush toilets

b)

Filtering and drinking rainwater

c)

Reusing water from showers, baths, and basins

d)

Using sewage water in gardens

45.

What is this system?

a)

Grey water recycling

b)

Rainwater Harvesting

c)

Underground water storage system

d)

Rainwater Collection System

46.

What is Rainwater Harvesting?

a)

Using rainwater to flush toilets

b)

Filtering and drinking rainwater

c)

Reusing water from showers, baths, and basins

d)

Using sewage water in gardens

47.

What is the name of the valve commonly used in urinals?

a)

Ball valve

b)

Float valve

c)

Drop valve

d)

Service valve

48.

What is the typical height of a bowl urinal from the floor?

a)

500mm

b)

550mm

c)

600mm

d)

700mm

49.

Name the flushing mechanism in the cistern shown.

a)

Siphon flushing mechanism

b)

Drop/flapper valve flushing mechanism

c)

Air valve flushing mechanism

d)

Electronic valve flushing mechanism

50.

Name the WC Pan shown

a)

Washdown pan with single trap

b)

Double trap siphonic pan

c)

Single trap siphonic pan

51.

Name the WC Pan shown

a)

Washdown pan with single trap

b)

Double trap siphonic pan

c)

Single trap siphonic pan

52.

Select the correct PVCu profile: Half round

a)

b)

c)

d)

53.

Identify the diagram shown.

a)

A primary ventilated stack

b)

A secondary ventilated stack

c)

A ventilated branch system

d)

A stub stack

54.

Name the flushing mechanism in the cistern shown.

a)

Siphon flushing mechanism

b)

Drop valve flushing mechanism

c)

Air valve flushing mechanism

d)

Electronic valve flushing mechanism

55.

Identify the type of trap seal loss

a)

compression

b)

wavering out

c)

capillary action

d)

momentum

e)

self siphonage

56.

This gutter profile is called......

a)

Half round

b)

Square

c)

Egg mould

d)

Ogee

57.

What is the minimum height of the soil vent pipe marked x in the image below?

a)

600mm

b)

750mm

c)

800mm

d)

900mm