UNIT 4 Computer Numerical Control

What is the full form of CNC?

• Computer Numerical Calculations
• Control Numerical Calculations
• Control Numerical Computation
• Computer Numerical Control

What does CNC machines do?

• It cuts material
• It moves material
• It controls the machine tools
• It performs mathematical operations

What is the main advantage of CNC machines?

• Increased productivity
• Increased accuracy
• Increased efficiency
• Increased flexibility

What is the main difference between CNC and conventional machines?

• CNC machines are faster
• CNC machines are cheaper
• CNC machines are more accurate
• CNC machines have greater control over the cutting process

What type of tools can be used in CNC machines?

• Only drill bits
• Only end mills
• Only taps
• Drill bits, end mills, and taps

What are the different types of CNC machines?

• Lathe, Milling, Grinding
• Lathe, Milling, Drilling
• Lathe, Grinding, Drilling
• Milling, Grinding, Drilling

Which type of CNC machine is best suited for cutting complex shapes?

• Lathe
• Milling
• Grinding
• Drilling

How can the speed of CNC machines be increased?

• By increasing the size of the machine
• By increasing the number of tools used
• By using better quality tools
• By using more powerful motors