Viva questions of Machine Design

Viva questions of Machine Design

Some potential questions that might be asked during a viva (oral examination) for a course on machine design include:

  • What is the difference between static and dynamic loading?
  • How do you determine the factor of safety for a given machine component?
  • What is fatigue failure and how can it be prevented in machine design?
  • How do you design a shaft for torsional loading?
  • What is the difference between a fixed and a floating bearing?
  • What are the different types of gears and when are they used?
  • How do you calculate the torque required for a given power transmission application?
  • What are the different types of fasteners and when are they used in machine design?
  • How do you select the proper lubricant for a given machine component?
  • How do you design a machine element for both strength and stiffness?
  • How do you design a machine element for high temperature and/or corrosive environments?
  • What is the difference between bending and shear stress in a beam?
  • How do you calculate the natural frequency of a machine component?
  • What are the different types of springs and when are they used in machine design?
  • How do you design a machine element for impact loading?
  • What is the difference between elastic and plastic deformation in a material?
  • How do you design a machine element for vibration damping?
  • What is the difference between brittle and ductile materials and how do they affect machine design?
  • How do you calculate the allowable stress for a given material?
  • How do you design a machine element for multiple loading conditions?
  • How do you select the appropriate type of welding for a machine component?
  • What is the difference between a belt drive and a chain drive?
  • How do you design a machine element for shock loading?
  • What are the different types of bearings and when are they used in machine design?
  • How do you calculate the safety factor for a machine component under cyclic loading?
  • What is the difference between a cast and a forged machine component?
  • How do you design a machine element for high-speed operation?
  • What are the different types of seals and when are they used in machine design?
  • How do you determine the coefficient of friction for a given material pair?
  • How do you design a machine element for energy absorption?
  • How do you design a machine element for noise reduction?
  • What is the difference between static and dynamic friction?
  • How do you design a machine element for wear resistance?
  • What are the different types of gears and when are they used in machine design?
  • How do you calculate the critical speed of a machine component?
  • What is the difference between a shaft and a spindle in machine design?
  • How do you design a machine element for thermal expansion and contraction?
  • What are the different types of couplings and when are they used in machine design?
  • How do you determine the modulus of elasticity for a given material?
  • How do you design a machine element for ease of maintenance and repair?
  • How do you design a machine element for energy efficiency?
  • What is the difference between a static and dynamic balance?
  • How do you design a machine element for lubrication?
  • What are the different types of actuators and when are they used in machine design?
  • How do you calculate the power rating of a machine component?
  • What is the difference between a cantilever and a simple supported beam in machine design?
  • How do you design a machine element for vibration isolation?
  • What are the different types of fasteners and when are they used in machine design?
  • How do you determine the coefficient of thermal expansion for a given material?
  • How do you design a machine element for durability and longevity?

Note: These questions are just an example, actual questions may vary based on the course curriculum, teaching methods, and the instructor’s preference.

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