Q1: What is the DNC System?
Ans: DNC (Direct Numerical Control) System is a computer-based system that directly controls multiple CNC machines from a central computer.
Q2: State the components of the DNC System.
Ans: The components of a DNC System include:
- ➔ Central computer
- ➔ CNC machines
- ➔ Communication network
- ➔ Software for data transfer and control
Q3: Define Bulk Memory.
Ans: Bulk memory is a high-capacity storage system used to store programs and data for CNC machines.
Q4: Define Telecommunication Lines.
Ans: Telecommunication lines are communication channels used to transfer data between the central computer and CNC machines.
Q5: Define Satellite Computers.
Ans: Satellite computers are smaller computers connected to the main DNC system to assist in controlling CNC machines locally.
Q6: Name the types of DNC System.
Ans: The types of DNC System are as follows:
- ➔ Centralized DNC
- ➔ Distributed DNC
Q7: Name four advantages of the DNC System.
Ans: Some of the advantages of DNC System are as follows:
- ➔ Reduces manual programming errors
- ➔ Increases machine utilization
- ➔ Simplifies program management
- ➔ Enables faster production
Q8: Name four disadvantages of the DNC System.
Ans: Some of the disadvantages of DNC System are as follows:
- ➔ High initial cost
- ➔ Requires skilled operators
- ➔ System failure affects multiple machines
- ➔ Maintenance can be complex
Q9: What is a Flexible Manufacturing Cell?
Ans: A Flexible Manufacturing Cell (FMC) is a group of machines connected to a central computer to manufacture parts efficiently and flexibly.
Q10: What is Machine Flexibility?
Ans: Machine flexibility is the ability of a machine to perform different operations on different parts without major changes.
Q11: What is Routing Flexibility?
Ans: Routing flexibility is the ability to produce a part using different paths or sequences through the manufacturing system.
Q12: What is FMS/FMC?
Ans: FMS (Flexible Manufacturing System) or FMC is an automated manufacturing system that can handle various parts with minimal human intervention.
Q13: Name some components of FMS/FMC.
Ans: Some of the components of FMS/FMC are as follows:
- ➔ CNC machines
- ➔ Material handling system
- ➔ Central computer
- ➔ Storage system
- ➔ Communication network
Q14: State some applications of FMS/FMC.
Ans: The applications or uses of FMS/FMC are as follows:
- ➔ Automotive parts manufacturing
- ➔ Electronics assembly
- ➔ Aerospace components production
- ➔ Batch production of machine parts
Q15: Name four advantages of FMS/FMC.
Ans: Some of the advantages of FMS/FMC are as follows:
- ➔ Reduces production time
- ➔ Improves flexibility
- ➔ Reduces labor costs
- ➔ Improves product quality
Q16: Name four disadvantages of FMS/FMC.
Ans: Some of the disadvantages of FMS/FMC are as follows:
- ➔ High initial investment
- ➔ Complex maintenance
- ➔ Requires skilled operators
- ➔ System downtime affects production
Q17: Define Work Stations.
Ans: Work stations are specific locations in a manufacturing system where tasks or operations are performed.
Q18: Define Network.
Ans: A network is a system of interconnected computers or devices that share data and resources.
Q19: Define LAN.
Ans: LAN (Local Area Network) is a network connecting computers within a small area like a factory or office.
Q20: Define CIM.
Ans: CIM (Computer Integrated Manufacturing) is a system where computers control the entire production process from design to manufacturing.
Q21: Write four advantages of CIM.
Ans: Some of the advantages of CIM are as follows:
- ➔ Reduces production time
- ➔ Improves product quality
- ➔ Reduces manual labor
- ➔ Better production planning
Q22: Define Flexible Automation.
Ans: Flexible automation is a manufacturing system that can handle different products without stopping the system for reconfiguration.
Q23: Write four advantages of Flexible Automation.
Ans: Some of the advantages of Flexible Automation are as follows:
- ➔ Handles multiple products efficiently
- ➔ Reduces setup time
- ➔ Increases production flexibility
- ➔ Improves resource utilization
Q24: Define Robot.
Ans: A robot is a programmable machine capable of performing tasks automatically.
Q25: State the classification of Robots.
Ans: The classification of Robots are as follows:
- ➔ Articulated robots
- ➔ SCARA robots
- ➔ Cartesian robots
- ➔ Cylindrical robots
- ➔ Delta robots
Q26: State the application of Robots.
Ans: The applications of Robots are as follows:
- ➔ Welding
- ➔ Material handling
- ➔ Painting
- ➔ Assembly
- ➔ Packaging
Q27: State four advantages of Robots.
Ans: Some of the advantages of Robots are as follows:
- ➔ Reduces labor cost
- ➔ Works in hazardous environments
- ➔ Increases production speed
- ➔ Ensures consistent quality
Q28: State four disadvantages of Robots.
Ans: Some of the disadvantages of Robots are as follows:
- ➔ High initial cost
- ➔ Requires skilled operators
- ➔ Expensive maintenance
- ➔ Lack of flexibility for new tasks
Q29: Define FA (Factory Automation).
Ans: Factory Automation is the use of control systems, robots, and computers to operate manufacturing processes automatically.
Q30: Define MUDA.
Ans: MUDA is a Japanese term for waste; in manufacturing, it refers to any activity that does not add value.
Q31: Define FTL.
Ans: FTL (Flexible Transfer Line) is a production line designed to manufacture different products with minimal reconfiguration.
