unit 206 outcome 3

What is the primary purpose of quick-release fastenings in boat assembly?

• To provide a permanent bond

• To resist vibration and movement

• To prevent loosening of bolts

• To allow for easy removal and modular assembly

Which type of fastener is designed to prevent the loosening of bolts and screws using a self-locking mechanism?

• Captive nuts

• Quick-release fastenings

• Locknuts

• Split pins

What is the function of captive nuts?

• Fusing metals together

• Providing a strong, permanent joint

• Being permanently attached for quick fastening

• Securing components and preventing loosening

What is the purpose of nylocks?

• To create a permanent joint

• To fuse metals together

• To secure components with a cotter pin

• To prevent loosening with a nylon insert

What process involves fusing metals together using heat and pressure?

• Nylocks

• Split pins

• R-clips

• Welding

What are split pins also known as?

• Castle nuts

• Roll pins

• Cotter pins

• R-clips

What is a key feature of castle nuts?

• They are cylindrical

• They have a nylon locking feature

• They are U-shaped

• They allow for insertion of a cotter pin

What type of pins are driven into holes to hold components together with an interference fit?

• Roll pins

• R-clips

• Sheerpins

• Lockwire

What is the shape of R-clips?

• Cylindrical

• Flat and round with a gap on one side

• U-shaped with a bend on one side

• Threaded

What is the purpose of lockwire?

• To break under excessive force

• To provide a strong, permanent joint

• To secure threaded fasteners

• To adhere threaded fasteners