GMJ 6035-02 Progression Assessment

Which of the following materials is non-ferrous?

• Steel

• Cast Iron

• Copper

• Iron

What is the boiling point of water at sea level?

• 0°C

• 50°C

• 100°C

• 150°C

Which type of plastic is suitable for underground water mains?

• PVCu

• Polybutylene

• MDPE

• ABS

What is the relative density of air?

• 0.9

• 1.0

• 1.5

• 2.0

How much does water expand when it turns into steam?

• 10 times

• 160 times

• 1,000 times

• 1,600 times

Which material is most likely to sink in water?

• Polythene

• Aluminium

• Natural Gas

• Air

Which of the following is a characteristic of thermoplastics?

• Cannot be reshaped after heating

• Recyclable

• Rigid at high temperatures

• Non-recyclable

What happens to water when it freezes?

• Contracts by 10%

• Expands by 4%

• Remains the same volume

• Expands by 10%

Which material is most ductile?

• Lead

• Copper

• Cast Iron

• Zinc

At what temperature is water most dense?

• 0°C

• 4°C

• 20°C

• 100°C