Level 2 maths, science and materials - Sample questions

A 110 volt socket supplies a spot light with a resistance of 220 ohms. How much current (amps) is flowing through the light?

• 0.5 amps

• 2.0 amps

• 110 amps

• 330 amps

The average length of mild steel round bar used in a workshop is 24.354 m. What is the amount used when quoted to one decimal place?

• 24.0

• 24.3

• 24.4

• 25.0

What is the area of a rectangular plate measuring 4.37 m x 2.07 m correct to two decimal places?

• 2.30 m²

• 2.44 m²

• 9.05 m²

• 9.24 m²

Which one of the following materials is 'ferromagnetic'?

• Aluminium.

• Steel.

• Brass.

• Copper.

Which one of the following materials has the lowest melting point?

• Aluminium.

• Magnesium.

• Zinc.

• Lead.

What metal is used for the manufacture of a file?

• High carbon steel.

• Low carbon steel.

• Brass.

• Aluminium.

What is the result of increasing the carbon percentage in steel?

• Decreases tensile strength.

• Increases hardness.

• Increases impact strength.

• Decreases hardness.

Which property of zinc alloys makes them most suitable for casting components?

• High melting point.

• Low melting point.

• Low corrosion resistance.

• Low impact strength.

What effect will annealing have on steels properties?

• Increases melting point.

• Reduces melting point.

• Increases hardness.

• Reduces hardness.

What is the correct method for normalising heat treatment of steel?

• Heat and allow to cool slowly in air at room temperature.

• Heat and cool slowly.

• Heat and cool quickly in water.

• Heat up until the melting point is reached and allow to cool.