Design of automotive components
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- What do you mean by factor of safety?
- Why the double helical gears are preferred instead of single helical?
- What are the bending stresses? How they are related with bending moment?
- State the maximum shear stress theory of failure. Also draw its curves
- What do you understand by self-energizing brakes?
- Explain why flywheels are used in punching machines. Does the mounting of a flywheel reduce the stress induced in the shafts?
- What is the function of a spring? In which type of spring the behaviour is non-linear?
- Why it is necessary to dissipate the heat generated when clutches operate?
- A weight is brought to rest by applying brakes to the hoisting drum driven by an electric motor. How will you estimate the total energy absorbed by the brake?
- Distinguish clearly between pin, axle and shaf.
- What are the methods and materials used in manufacturing of crankshafts?
- How is axial thrust in helical gears overcome?
- What is crossed helical gear?
- What is thick film lubrication?
- Why are shock and fatigue factors involved in shaft design?
- Why it is necessary to use factor of safety?
- Define tolerance. How is it related to limits?
- What is interchangeability?
- What are assumptions for short shoe brake analysis?
- State any two advantages of deep groove ball bearing.
- What are the steps involved in general design procedure?
- State maximum shear stress theory and maximum normal stress theory.
- What is the effect of keyway on shaft strength?
- Explain the design of shaft on the basis of rigidity.
- Explain the significance of Walh’s factor in designing helical spring.
- State four factors to be taken into consideration while selecting ball bearing.
- Draw a neat sketch of leaf spring. State any two applications.
- State any two materials for helical spring. Write any two properties of these materials.
- What are the various types of shafts? State two materials of shaft.
- What are the considerations in designing spur gear?