UNIT 3 centerless grinding

What is the main advantage of centreless grinding over cylindrical grinding?

• Lesser tooling
• High surface quality
• Better accuracy
• Reduction in cost

Which type of grinding is preferred for producing high surface finish and tight tolerances on long, thin cylindrical parts?

• Centreless
• Surface
• Cylindrical
• Internal

What is the purpose of the regulating wheel in centreless grinding?

• To hold the work
• To rotate the wheel
• To dress the wheel
• To remove the work

What is the role of the grinding wheel in centreless grinding?

• To hold the work
• To remove the work
• To rotate the wheel
• To dress the wheel

Which of the following parts of a centreless grinder maintains a constant workpiece height above the grinding wheel?

• Regulating wheel
• Work rest blade
• Grinding wheel
• Spindle

Which type of centreless grinding process uses a regulating wheel with a diamond nib for precision sizing of workpieces?

• In-feed
• Thru-feed
• End-feed
• Multi-pass

Which of the following defects can occur in centreless grinding if the grinding wheel is too soft or the workpiece is too hard?

• Burn marks
• Chatter marks
• Wheel loading
• Workpiece deflection

What is the advantage of centreless grinding in high-volume production settings?

• Faster cycle time
• High surface quality
• Lower tooling cost
• Higher accuracy

Which of the following is a disadvantage of centreless grinding compared to other grinding processes?

• Inability to grind complex shapes
• Low surface finish
• High tooling cost
• Difficulty in automation