Engineering revision

A ferrous metal contains?

• Carbon

• Steel

• Iron

• Brass

Basic steel is an alloy of?

• Iron and carbon

• Iron, carbon and chromium

• Brass and tin

• Iron and zinc

Galvanising is a method of?

• Heat treatment

• Corrosion resistance

• Surface finishing

• Distortion correction

Tolerance means?

• The permissible number of mistakes that can be made.

• The permissible limit of dimensions on a drawing.

• The permissible limit of parts made in small production run.

• The permissible limit of variation in a physical dimension.

A rod has a tolerance of +2-1 and it must be 77.5 mm long what is the smallest it can be?

• 76

• 77

• 76.5

• 75.5

Brass is an alloy of?

• Copper and tin

• Copper and zinc

• Aluminium and tin

• Aluminium and zinc

What is added to steel to make stainless steel?

• Chromium

• Zinc

• Brass

• Bronze

The formula for calculating the area of a square is?

• 4a

• a²

• a³

• a+a

The formula for calculating the area of a rectangle is?

• B x H

• B²

• B + H

• B x H / 2

The formula for calculating the area of a triangle is?

• B x H / 2

• B x H

• B²

• B + h/2