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WorksheetsL3 Mixed
Total questions: 50
Worksheet time: 26mins
Brass is an alloy made from
Copper and tin
Zinc and copper
Copper and aluminium
Bronze and copper
Low carbon steel is made using:
Low magnetic steel
Lightweight carbon
Iron and carbon
Stainless steel and carbon
Ceramics are used for:
Insulation on cold water pipework
Kitchen cupboard doors for hygiene
Sanitary appliances
Filtration systems for swimming pools
Which of the following statements is true about a thermoplastic?
When cold it can be brittle
It remains soft and pliable at any temperature
It cannot be recycled
Once heated it cannot be re-shaped
The term 'conductivity' can refer to both electrical and thermal.
True
False
Malleability describes the capacity for a material to be cut cleanly by two opposing forces
True
False
True or false: Soft water is acidic.
True
False
Which one of the following does not cause erosion?
Turbulence in the water flow
Bad workmanship
Fast-flowing water
Calcium in water
For rust to form in a plumbing system, which of the following combination of materials/substances must be present?
Water + Limescale + Iron
Oxygen + Iron + Water
Oxygen + Brass + Iron
Iron + Water + Brass
Capillary attraction would be greatest in tube
A
B
C
D
The quality of water in the UK is governed by
The water regulations 1999
The British standards
The Building regulations
The water Act
The law that states that the volume of a sample of gas at a given temperature varies inversely with the applied pressure is?
Charles’s law
Boyle’s law
During electrolytic action the
Anode will gradually destroy the cathode
Cathode will gradually destroy the anode
Electrolyte will be used up and disappear
Electrolyte will destroy the cathode
What is the role of a buyer within a construction company
sources materials needed to complete a project by obtaining quotes from suppliers, with delivery times and quality assurance.
is responsible for the pre-contract planning, as well as identifying the most economic and efficient way to use labour, plant and materials
Making sure there is sufficient teas and coffees available on site
The person who has to go to the merchants to purchase the materials required by operatives
What does CDM stand for>
Construction domestic manager
Construction design manager
Construction design management
Construction development manager
A builder must notify the local authority building control officer a minimum of how many hours BEFORE work is programmed to commence
24
48
36
14
What building regulation covers ventilation
G
F
L
C
What is an approved document
Manufacturers instructions
Installation guides
A site drawing
Building regulations
Building regulations part P says dangers zones are:
Bathroom, lounge, Outhouse
bathroom, kitchen, outhouse
Bathroom kitchen, boat house
Bathroom, Kitchen, Garage
Who can sign a variation order
Clerk of the works
Site manager
Plumbing supervisor
Health and safety manager
What is the name of the document that allows additional works to be completed, which may fall outside the initial agreed contract. For example, if two extra radiators are requested by the client after the job commences
Variety order
Purchase order
Bill of quantities
Variation order
What building regulation covers central heating systems?
Part G
Part L
Part A
Part H
Information on heating system regulations can be found in?
Domestic heating compliance guide
The heating design guide
BSEN 806
The installation of heating guide
What is Background heating?
A type of heating you can't see
A heating system that can't achieve the desired temp at low outside temperatures
Any heating system using under floor heating
All of the above
What is the purpose of a heat sink?
To provide a good source of hot water
To help control the heat in the boiler
To stop gravity circulation
To stop the heating getting cold
A heating system not open to the atmosphere is know as a?
Un vented system
Mains feed system
Sealed system
Fully pumped system
A single feed systems can be filled using what type of cylinder?
Indirect
Primatic
Problematic
Hydro-matic
What is locking out?
A thermostat that shuts down the boiler if the flow is above 80
A thermostat that shuts down the boiler if the flow is above 85
A thermostat that shuts down the boiler if the flow is above 90
A thermostat that shuts down the boiler if the flow is above 95
What type of float valve should be fitted to an F & E cistern?
BS1212 part 1
BS1212 part 2
BS1212 part 3
BS1212 part 4
A central heating boiler that heats water instantaneously is know as a?
System boilers
Conventional boilers
Combi boiler
Traditional Boiler
This image shows a?
A Auto air vent
A Radiator valve
A drain off
A circulator
Modern heating systems are?
One-pipe parallel return system
two-pipe reverse return system
two-pipe series system
two-pipe parallel return system
central heating and hot water regulated by a single three-port is know s as?
S plan
Y plan
W plan
S plan plus
This picture shows a?
Circulator
Two port valve
Three port valve
Programmer
What is the maximum depth a water main service pipe should be laid at?
750mm
1,850mm
1,350mm
1,750mm
Fluid category 1 represents:
A serious health risk
A significant health risk
A slight health risk
No health risk
Which one of the following back flow
prevention devices must be
installed on a supply to a hose union bib tap, according to the Water Regulations?
AUK 2 air gap
Single check valve
Fullway gate vale
A double check valve
If a hand basin has submerged
taps, which one of the following back flow prevention devices does the
Water Regulations say must be
installed?
Double check valve
AUK 3 air gap.
Overflow
Single check valve
When installing pipework in a
property, what must happen to all open-ended pipework if you leave the site?
Capped off with push fit.
Appliances must be fitted
Left alone
Labelled and taped
According to the Water Regulations,
where must a drain-off valve be
placed?
At every low point in the system
At every high pressure point in the system
At every high point in the system
At every low pressure point in the system
What air gap is required for a wash hand basin
AUK 2 air gap
AUK 3 air gap
AG air gap
AUK 1 air gap
Give a definition of back flow
Water that gets sucked back up a hose pipe
Water is allowed to flow in the opposite direction to which it is designed to travel
Water is allowed to travel down the drain
Water that is drawn back up to the CWSC up the Hot water vent pipe
What one of these is classed as category 4 water
Fluids representing a severe health risk, containing pathogenic organisms, radioactive, faecal
Fluids representing a significant health risk, containing toxic substances
Fluids representing a slight health risk and are not suitable for drinking
Water that would be classed as Cat 1 except for colour, odour, appearance or temperature
The plastic medium density supply pipe, which is coloured blue, is manufactured from which one of the following materials
Polystyrene
Polyputhekettleon
Polybutylene
Polyethylene
Which one of the following connections to the CWSC must be screened
Cold distribution pipe
Rising main
Cold supply pipe
Warning pipe
What needs to be connected to a FOV to a CWSC
Gate valve
Non return valve
Service valve
Water meter
What is the correct description of a centralised hot water system
Hot water is delivered from a central point to all HW outlets in the building
Hot water is delivered form a point close to the appliance and only supplies that appliance
What building regulation approved document covers hot water safety and water efficiently
G
F
H
A
This picture shows?
A direct cylinder
An Indirect cylinder
A combination Cylinder
A prismatic cylinder
The minimum size of vent pipe is?
15mm
28mm
22mm
The same size as the cold feed pipe
