What is the primary function of a shaft?

• To support stationary components

• To reduce friction

• To transmit power

• To provide structural support

Which type of shaft is used to convert linear motion of engine piston to rotational motion of the engine crankshaft?

• Propeller Shaft

• Stepped Shaft

• Connecting rod or Piston rod

• Engine Camshaft

• Engine Crankshaft

What material is commonly used for manufacturing shafts?

• Copper

• Plastic

• SAE 1045 steel

• Aluminum

What is the purpose of a fillet radius in shaft design?

• To minimize stress concentration

• To enhance aesthetic appeal

• To increase weight

• To reduce manufacturing costs

Which of the following is NOT commonly recognized as a type of shaft used in machinery?

• Crankshaft

• Camshaft

• Transmission axles

• Support Rods

What type of stress occurs in a shaft when it is subjected to twisting?

• Tensile Stress

• Compressive Stress

• Torsional Shear Stress

• Bending Stress

What is the role of couplings in shaft systems?

• To transmit power between shafts

• To support bearings

• To reduce noise

• To increase speed

What is the most suitable material for producing high-strength shafts in engineering applications?

• Alloy Steel

• Carbon Steel

• Stainless Steel

• Tool Steel

What happens when the applied torque exceeds a shaft's material strength?

• The shaft fractures

• The shaft bends

• The shaft vibrates

• The shaft elongates

What role does a propulsion shaft play in a marine vessel?

• To connect the engine to the steering system

• To facilitate the rotation of the propeller

• To enhance fuel efficiency

• To provide structural support to the hull