Question

Go to a bicycle repair shop, observe how a bicycle is repaired, and note down the information.

Answer 1

• The mechanic checked the tyres and tubes and repaired any punctures.
• The chain was cleaned, adjusted and lubricated so that it moved smoothly.
• The brakes were checked and tightened properly.
• The pedals, wheels and axle were examined and adjusted.
• Loose nuts, bolts and screws were tightened with suitable tools.
• The mechanic checked the air pressure in the tyres and filled air when necessary.
• The bicycle wheels were checked to make sure that they rotated freely and correctly.

Various tools and simple machines such as spanners, screwdrivers, levers, screws, and wheel-and-axle arrangements are used while repairing a bicycle. These tools make the repair work easier and require less effort.