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WorksheetsScientific Principles PPT 1 - Common Material Properties
Total questions: 46
Worksheet time: 35mins
Which of the following is a common metal used in the plumbing industry?
Gold
Copper
Silver
Titanium
What category can metals used in plumbing be divided into?
Organic and Inorganic
Ferrous and Non-ferrous
Synthetic and Natural
Conductive and Non-conductive
Which of the following is a characteristic of ferrous metals?
They are non-magnetic.
They do not corrode easily.
They contain iron.
They are made of copper.
What is a common property of non-ferrous metals?
They contain iron.
They are magnetic.
They are non-magnetic.
They corrode easily.
Which of the following metals is non-ferrous?
Iron
Copper
Steel
Cast iron
Which metals are combined to form brass?
Copper and tin
Copper and zinc
Iron and carbon
Tin and copper
What is gunmetal composed of?
Copper and zinc
Copper, tin, and zinc
Iron and carbon
Tin and copper
Which alloy is made from iron and carbon?
Brass
Bronze
Steel
Solder
What type of metal is copper classified as?
Alloy of iron and carbon
Pure metal
Alloy of copper and zinc
Alloy of iron, carbon, chromium and nickel
Which metal is commonly used for industrial and commercial pipe and fittings?
Brass
Aluminium
Stainless steel
Lead
What is an example of a common use for low carbon steel?
Heat exchangers
Fittings and valves
Pipe, fittings, heat emitters, brackets and heat exchangers
Flashings, production of some solders
Brass is an alloy of which two metals?
Iron and carbon
Copper and zinc
Iron, carbon, chromium and nickel
Aluminium and lead
What are some of the uses of plastics in plumbing?
Cold water, hot water, central heating, guttering, above ground drainage, below ground drainage
Electrical wiring, roofing, flooring, painting
Cooking, cleaning, gardening, lighting
Furniture making, textile production, glass manufacturing
Which type of plastic can be heated and reshaped but becomes brittle when frozen?
Thermoplastic
Thermosetting
Bioplastic
Elastomer
What is a characteristic of thermosetting plastics?
They are recyclable.
They become brittle when frozen.
They can be reshaped when heated.
They are not recyclable.
Which type of plastic is made from polymer resin and is recyclable?
Thermoplastic
Thermosetting
Bioplastic
Elastomer
What is a property of thermosetting plastics?
They can be reshaped when heated.
They are rigid and cope with high temperatures.
They are recyclable.
They become brittle when frozen.
Which type of thermoplastic is not suitable for hot water applications?
MDPE
HDPE
PVCu
LDPE
What is a common characteristic of both MDPE and HDPE?
Suitable for hot water
Degrades in sunlight
Used for soil pipes
Solvent weld
Which thermoplastic is typically used for underground mains and is blue in color?
PVCu
MDPE
HDPE
PP
What type of fitting is common to PVCu, MDPE, and HDPE?
Solvent weld
Push fit
Compression
Threaded
Which material is used for waste pipes and degrades in direct sunlight?
Polypropylene
Polybutylene
ABS
PVC
What is a characteristic of Polybutylene?
Solvent welded
Push fit
Feels greasy to the touch
Degrades in sunlight
Which material is solvent welded and used for commercial water?
Polypropylene
Polybutylene
ABS
PVC
Which of the following materials is not solvent welded?
Polypropylene
Polybutylene
ABS
PVC
What are ceramics commonly used for in bathroom furniture?
Flooring
Wash hand basins and wc’s
Wall tiles
Lighting fixtures
What is a characteristic of vitreous china?
Matte finish
High gloss finish
Rough texture
Soft surface
Which of the following is a property of materials used in plumbing?
Transparency
Malleability
Flammability
Buoyancy
Which property refers to a material's ability to conduct heat and electricity?
Elasticity
Conductivity
Hardness
Durability
What is tensile strength measured in?
Kilograms
Liters
N/m² or pascals
Meters
Which materials are mentioned as examples that can be stretched or broken?
Wood, glass, rubber
Plastic, metal
Paper, fabric, leather
Stone, sand, clay
What does compressive strength measure in a material?
The ability to withstand tension
The ability to conduct electricity
The ability to resist being crushed
The ability to absorb water
What is shear strength?
The ability of a material to withstand tension.
The ability of a material to withstand compression.
The ability of a material to withstand opposing forces.
The ability of a material to withstand bending.
Which of the following is an example of shear strength?
Stretching a rubber band.
Cutting with scissors.
Compressing a spring.
Bending a metal rod.
What is ductility sometimes known as?
Hardness
Toughness
Brittleness
Elasticity
Which material is mentioned as being very ductile?
Steel
Aluminum
Copper
Plastic
What does ductility measure in a material?
How much a material can be compressed
How much a material can be heated
How much a material can be pulled, pushed, or stretched without breaking
How much a material can conduct electricity
What is malleability in materials?
The ability to conduct electricity
The ability to be compressed without fracturing
The ability to resist corrosion
The ability to float on water
Why is lead considered very malleable?
It can conduct heat efficiently
It can be dissolved in water
It can be bossed into shape without cracking
It can resist high temperatures
What are fittings used with LCS pipe sometimes called?
Stainless steel
Malleable iron
Copper fittings
Plastic fittings
What is the resistance of a material to bending, scratching, abrasion, or cutting called?
Flexibility
Hardness
Elasticity
Ductility
What is the measure of hardness known as?
Newtons
Pascals
Mohs
Joules
What is the Mohs hardness rating of a diamond?
3 Mohs
5 Mohs
7 Mohs
10 Mohs
What is the Mohs hardness rating of copper?
1 Mohs
3 Mohs
5 Mohs
7 Mohs
What is the property of a material that allows it to return to its original shape after distortion?
Elasticity
Conductivity
Density
Hardness
What happens to a material when it goes past its 'elastic limit'?
It becomes more elastic
It returns to its original shape
It deforms and stays out of shape
It becomes harder
