WorksheetsPlumbing and Ferrous Metals Quiz
Total questions: 15
Worksheet time: 8mins
What is an alloy?
A single metal element
A mixture of two or more metals
A non-metallic compound
A type of plastic
What does MDPE stand for?
Medium density polyethylene
Medium density polyvinyl
Medium density polypropylene
Medium density polystyrene
What is a disadvantage of using MDPE?
Degrades in sunlight
Not suitable for cold water
Difficult to weld
Expensive
Which material is not solvent welded and used for overflow applications?
Polypropylene
Polybutylene
ABS Acrylonitrile Butadiene Styrene
PVC
What is a disadvantage of using polypropylene in plumbing?
Solvent welded
Degrades in direct sunlight
Push fit
Compression
What happens to your weight if you go to the moon?
It increases
It stays the same
It decreases
It doubles
Which material has a relative density of 1.28?
uPVC
Aluminium
Cast Iron
Copper
Which material has the highest relative density?
Copper
Aluminium
uPVC
Polythene
What is the relative density of Natural gas?
0.6
1.0
1.5
2.0
Which material has a relative density less than 1.0?
Polythene
uPVC
Aluminium
Copper
What property describes a material's ability to be deformed under compressive stress?
Elasticity
Hardness
Malleability
Durability
What property is important for materials that need to maintain their shape under stress?
Elasticity
Durability
Ductility
Thermal expansion
Which materials are mentioned as examples that can stretch or break?
Wood, glass, rubber
Plastic, metal, concrete
Paper, fabric, leather
Stone, sand, clay
Image showing a material being stretched with arrows indicating force
Compression
Tension
Bending
Shearing
Which material is mentioned as being very ductile in the text?
Steel
Aluminum
Copper
Plastic
