UNIT 4 Open & closed loop system

Remembering: What is an open loop system in CNC machines?

• A system that does not receive feedback from the machine
• A system that receives feedback from the machine
• A system that uses manual control
• A system that uses linear control

Understanding: What are the advantages of an open loop system in CNC machines?

• Increased accuracy
• Increased flexibility
• Decreased maintenance costs
• Increased reliability

Applying: What is the difference between open loop and closed loop systems in CNC machines?

• Open loop systems do not receive feedback while closed loop systems do
• Open loop systems receive feedback while closed loop systems do not
• Open loop systems are manual while closed loop systems are automated
• Open loop systems are automated while closed loop systems are manual

Analyzing: How does an open loop system affect the control of the CNC machine?

• It reduces the control of the machine
• It increases the control of the machine
• It does not affect the control of the machine
• It decreases the accuracy of the machine

Evaluating: When is it best to use an open loop system in CNC machines?

• When precise control is not necessary
• When precise control is necessary
• When cost is a concern
• When reliability is a concern

Creating: How can an open loop system be improved in CNC machines?

• By adding feedback mechanisms
• By removing feedback mechanisms
• By increasing the speed of the machine
• By decreasing the cost of the machine