AUEC2-006 Session 6

What is the main purpose of using keys in machinery?

• To hold components in place
• To increase speed
• To reduce noise
• To add weight

How are Keyways typically made in manufacturing processes?

• Casting
• Forging
• Milling
• Grinding

Which of the following is a common material used for making keys?

• Aluminium
• Steel
• Copper
• Plastic

What technique is commonly used for fitting keys and splines into shafts?

• Press fit
• Welding
• Screw fit
• Adhesive bonding

What is the purpose of a Gib head key?

• To transmit greater torque
• To allow angular misalignment
• To provide better fit
• May be removed more easily

What type of fit is preferred for fitting keys and splines to ensure proper transmission of torque?

• Loose fit
• Interference fit
• Transition fit
• Clearance fit

Which cutting process is commonly used for creating splines in shafts and hubs?

• Drilling
• Turning
• Broaching
• Electrical Discharge Machining (EDM)

What measurement is critical to ensure proper fitting of keys and splines in machinery?

• Length
• Width
• Tolerance
• Material hardness

What is the primary function of a tensioning belt

• To increase the load capacity of a machine

• To transfer power between two rotating shafts

• To maintain proper tension in a mechanical system

• To reduce friction in a drive system

How can you adjust the tension in a belt drive system?

• By changing the belt material

• By adjusting the pulley size

• By using a tensioning device

• By increasing the ambient temperature