Here are CIM MCQs (Chapterwise).
1. Which of the following is Computer Integrated Manufacturing’s objective?
a) Increase number of employees
b) Integration of different products
c) Integration of islands of automation
d) Segregation of manufacturing cells
View Answer
Explanation: Computer Integrated Manufacturing aims at achieving integration of islands of automation like flexible manufacturing systems, robotized work cells, etc. in industries. Effective and timely communication is required to achieve this objective.
2. Which of the following is a disadvantage of Computer Integrated Manufacturing?
a) Large no of workers requirement
b) High cost
c) Takes more time
d) Error-prone
View Answer
Explanation: Computer Integrated Manufacturing involves the use of computer systems and software packages. Their cost of purchase and set up is high. Maintenance of the system is also difficult and expensive.
3. Which among the following has the broadest scope in an organization?
a) CAM
b) CAPP
c) CAD
d) CIM
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Explanation: CAD stands for Computer-Aided Design. CAM stands for Computer-Aided Manufacturing. CAPP stands for Computer-Aided Process Planning. CAD, CAM, CAPP have limited scope in comparison to Computer Integrated Manufacturing. CIM includes CAD, CAM, CAPP, along with the business functions of an organization.
4. Computer Numerical Control machines use which type of computer?
a) Microcomputer
b) Supercomputer
c) Minicomputer
d) Mainframe computer
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Explanation: In the late 1960s, Numerical Control machines started using minicomputers and thus called Computer Numerical Control machines. In Computer Numerical Control paper tape and tape readers were replaced by the minicomputer.
5. Which is not an element of Computer Integrated Manufacturing?
a) Mining
b) Marketing
c) Warehousing
d) Product design
View Answer
Explanation: There are nine main elements of Computer Integrated Manufacturing. These are marketing, product design, planning, purchase, manufacturing engineering, factory automation hardware, warehousing, finance, and information management.
6. Which of the following belongs to the manufacturing equipment category of Computer Integrated Manufacturing hardware?
a) Plotters
b) Inspection machines
c) CAD/CAM systems
d) Barcode readers
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Explanation: Inspection machines, CNC machines, robotic work cells, flexible manufacturing systems, work handling & tool handling devices, storage devices, sensors, etc. are manufacturing equipment related hardware. CAD/CAM systems, plotters, and barcode readers are computer hardware.
7. Which is not among the ten strategies for automation and process improvement?
a) Manual operations
b) Online inspection
c) Simultaneous operations
d) Specialization of operations
View Answer
Explanation: There are ten strategies for automation and process improvement. These are – specialization of operations, combined operations, simultaneous operations, integration of operations, increased flexibility, improved material handling & storage, online inspection, process control & optimization, plant operations control, computer integrated manufacturing.
8. Which of the following functions comes under advanced automation functions?
a) Material handling
b) Welding
c) Error detection and recovery
d) Assembly
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Explanation: Safety monitoring, maintenance & repair diagnostics, error detection & recovery are examples of advanced automation functions. The purpose of these functions is to enhance the safety and performance of equipment.
9. Which of the following is a feature of flexible automation?
a) Flexibility to deal with product design
b) Similar to fixed automation
c) Use Numerical Control machine tools
d) Unable to deal with variations in product configuration
View Answer
Explanation: There is no requirement of a batch in flexible automation. A flexible automation system can produce mixes of product configurations continuously. There is no loss in production time for the changeover.
10. The central processing unit in CNC consists of which of the following parts?
a) Operating System Unit
b) Secondary memory
c) Arithmetic Logic Unit
d) Read Only Memory
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Explanation: Arithmetic Logic Unit performs various calculations, counting, and logical functions. Other parts of a CPU are the control section and immediate access memory. The control section retrieves data from memory and generates signals to activate other components in the machine control unit.
11. Which of the following software interprets an NC part program?
a) Machine interface software
b) Application software
c) Machine sequencing system
d) Operating system
View Answer
Explanation: Operating system software interprets part programs and generates control signals to drive machine tool axes. The editor, control program, and executive program are parts of operating system software.
12. Which of the following is not a basic component of the Numerical Control system?
a) Processing equipment
b) Part programmer
c) Machine control unit
d) Part program
View Answer
Explanation: A Numerical Control system has three basic components- a part program of instructions, machine control unit, and processing equipment. The person who prepares the part program is known as a part programmer.
13. Which of the following Numerical Control equipment needs the point to point control system?
a) NC drill press
b) NC cylindrical grinder
c) NC lathe
d) NC boring mill
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Explanation: NC lathe, NC boring mill, and NC cylindrical grinder need two-axis continuous path control. In a Numerical Control drill press, the turret position is programmed to apply different drill bits to the same work-piece during the machine cycle.
14. Which of the following work envelope belongs to the SCARA robotic configuration?
a) Hemisphere
b) Partial sphere
c) Cylindrical
d) Rectangular
View Answer
Explanation: The work envelope of a robot is 3D space within which the robot can manipulate its wrist end. A Cartesian coordinate robot has a rectangular solid work envelope. Articulated and polar configuration robots have partial sphere work envelopes.
15. Which of the following comes under the category of robot controllers?
a) Limited sequence control
b) Continuous sequence control
c) End to end control
d) Definite control
View Answer
Explanation: Robot controllers are classified as limited sequence control, playback with point-to-point control, playback with continuous path control, and intelligent control. Limited sequence control is used for simple tasks like pick and place operations.
16. What does outer rim in a CIM wheel represent?
a) Assembly functions
b) Upper management functions
c) Monitoring functions
d) Inspection functions
View Answer
Explanation: Outer rim in a CIM wheel depicts Upper management functions. Upper management functions are finance, strategic planning, marketing and manufacturing management & human resource management.
Chapterwise Multiple Choice Questions on Computer Integrated Manufacturing (CIM)
1. MCQ on CIM Basics
The section contains multiple choice questions and answers on CIM basics, evolution, and CIM elements, hardware, and software.
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2. Manufacturing Automation
The section covers questions and answers on introduction and automation principles, basic elements of automated systems, and types and levels of automation systems.
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3. Computer Numerical Control
The section contains MCQs on CNC basics, numerical control, DNC and NC applications, and NC part programming.
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4. Industrial Robotics
The section contains multiple choice questions and answers on industrial robot anatomy, robot control systems, end effector, robot applications, and robot programming.
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Wish you the best in your endeavor to learn and master CIM!
