This set of Flexible Manufacturing System Multiple Choice Questions & Answers (MCQs) focuses on “Communication Standards of DNC Systems”.
1. Which of the following do not come under the category of DNC Communication system?
a) RS-232 based DNC
b) Nodular based DNC
c) Terminal based DNC
d) Network based DNC
View Answer
Explanation: Nodular based DNC does not come under the category of communication system used in Distributed Numerical Control System. RS232, Terminal and Network based systems are the communications systems used in DNC.
2. What do RS in RS-232 communication system mean?
a) Repeated Specimen
b) Recommended Standard
c) Repeated Standard
d) Reversed Specimen
View Answer
Explanation: The term RS in RS-232 communication system mean Recommended Standard. RS-232 is a standard for serial communication transmission of data. It is typically used in the field of telecommunications.
3. Which cables are used in RS-232 based DNC communication system?
a) Copper or Fiber Optic
b) Gold
c) Platinum
d) Plastic
View Answer
Explanation: Copper or Fiber optic cables are typically used in RS-232 based DNC communication system. It is equipped with serial multiple interfaces card and connected to CNC controllers through RS-232.
4. RS-232 communication based DNC systems are typically used for large layouts where the computers are located far away from one another.
a) False
b) True
View Answer
Explanation: RS-232 communication based DNC systems are used in small companies where computers are located ideally less than 15 m. It is an outdated technology and several other technologies have replaced this method.
5. Which technique enables the operator to view manufacturing related data and to use the terminal to load the program?
a) Terminal based DNC
b) RS-232 based DNC
c) Sonar based DNC
d) Network based DNC
View Answer
Explanation: In order to use the terminal to load the program and enable the operator to view manufacturing related data, Terminal based DNC systems are used. It is expensive and advanced models allow editing of part programs.
6. Which DNC communication system replaced conventional Ethernet cabling?
a) Network based DNC
b) Radar based DNC
c) Terminal based DNC
d) RS-232 based DNC
View Answer
Explanation: Conventional Ethernet cabling has been today replaced completely by Network based DNC communication system. It is safe to use this technique for transferring data over large distance and also has high transferring speed.
7. Which of the following do the network based DNC systems use for data transfer?
a) Antennas
b) Network Adapters
c) Transmitters
d) Receivers
View Answer
Explanation: The network based DNC systems use Network adapters for transferring data. It has direct access to Numerical Control programs without terminals. Numerical Control programs can be accessed directly without any intervening terminals.
8. What does WLAN mean in Network based DNC systems?
a) Wireless Local Area Network
b) Wired Locomotive Area Network
c) Without Locomotive Area Network
d) With Land Area Network
View Answer
Explanation: WLAN means Wireless Local Area Network in network based Distributed Numerical Control Communication system. It is easily comfortable and easy to operate and is suitable for both large and small scale industries.
9. What is meant by FTP?
a) Form Transfer Prototype
b) File Transfer Protocol
c) File Transfer Prototype
d) Form Transmitting Prototype
View Answer
Explanation: FTP means File Transfer Protocol. It allows people to exchange and share data within their offices or upto remote locations. It is very helpful in terms of saving time and money when managing multiple data resources.
10. Which forms the bridge between cable network and wireless network?
a) Simulation Point
b) Collinear Point
c) Modular Point
d) Access Point
View Answer
Explanation: Access point acts as a bridge between the cable network and the wireless network. It has transmitter and receiver which are used to transfer and receive signals. It can also be used to connect two cable networks.
11. Which is a protocol converter which is responsible for facilitating the connection of two dissimilar networks?
a) Protocol connector
b) Gateway
c) Pathway
d) Protocol Reader
View Answer
Explanation: A protocol converter which is responsible for facilitating the connection of two dissimilar networks is known as Gateway. It is a special purpose computer consisting of a workstation with software module which runs as a task in a mainframe.
12. Which of the following is a collection of files as an organized assembly of information?
a) Collection Booklet
b) Database
c) Buffer
d) Information Booklet
View Answer
Explanation: An organized assembly of information accomplished through collection of files is known as Database. It is used for multiple purposes of handling data like editing, adding, deleting or modification of data.
13. Which of the following is the basic building block for designing all databases?
a) Data model
b) Flow Model
c) System Model
d) Building Model
View Answer
Explanation: The basic building block for designing all databases is known as Data model. It is a method of representing the collection of data elements in a logical manner. It organizes the elements of data and explains how they relate to each other and with real world entities.
14. What is meant by TCP?
a) Transmission Control Protocol
b) Transport Cell Prototype
c) Transmission Controller Prototype
d) Transport Cell Protocol
View Answer
Explanation: TCP means Transmission Control Protocol. It is an internet Protocol Suite. It consists of a set of rules which are standardized allowing computers to communicate on a network typically used for device communicating purposes.
15. Wireless Local Area Network operates in Nano hertz range.
a) True
b) False
View Answer
Explanation: Wireless Local Area Network operates in Giga hertz range. It is used to transfer data without any direct cable connection. Data transfer range is quite higher than the other data transfer systems typically used in other applications.
Sanfoundry Global Education & Learning Series – Flexible Manufacturing System.
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