OC 5 312. Wheels and brakes.

Aircraft wheels and tyre assemblies provide what functions.

• Take off & landing.

• All 3 correct answers.

• Ground Maneuvering.

• Braking at all speeds.

There are 3 types of aircraft wheel construction loose flange and well based are 2 what is the 3rd.

• Axle mounted.

• Bearing free wheel.

• Divided.

• Multi part.

What are the 2 parts of a divided wheel called.

• Valve half hub.

• Small hub side.

• Brake half hub.

• large hub side.

Why are fusible plugs colour coded.

• They can be found easier.

• It makes them look nice.

• So they can be stored properly.

• To indicate the temperature rating.

What type of bearings are fitted to aircraft wheels.

• Whichever is in the store.

• Ball bearings.

• They don't use bearings.

• Tapper roller bearings.

Why do aircraft manufacturers use taper roller bearing in aircraft wheels.

• They last a long time.

• They support both axial and radial loads.

• They spin less freely.

• They are less expensive.

What would be the problem if a tyre was wearing only on the crown.

• Under inflation.

• Bearings wearing out.

• Over inflation.

• Incorrect setup.

What would be the cause of even wear on both shoulders of the tyre.

• Aircraft always turning in the same direction.

• Under inflation.

• Landing gear set up wrong.

• Over inflation.

Bearings are allowed to move with small rotation around the axle, to help reduce the effects of brinelling. What is this small rotation movement called.

• Bearing creep.

• Bearing slip.

• Bearing saving.

• Bearing rotation.

Why do bearings need to be fitted and secured with the correct bearing end float.

• To check if the bearing will float when cleaning.

• To ensure the bearing can not move.

• To allow for Thermal expansion.

• To ensure the wheel locking nut is very tight.