Multiple choice questions chapter 33: 1. Nanotechnology refers to the fabrication and application of entities whose feature sizes are which of the following ranges: a. 1nm – 100nm 2. One nanometre is equivalent to a. 1 x 10-3 um b. 1 x 10-9 m 3. NII stands for a. National Nanotechnology Initiative 4. The surface to surface volume to ratio of a cube that is 1 x 10-6m on each edge is significantly greater than the surface to volume ratio of a cube that is 1m on each edge a. The surface to volume ratios of the cubes are equal 5. The proportion of surface molecules relative to internal molecules are significantly greater for a cube that is 1 x 10-6m on each edge than for a cube that is 1 m on each edge a. True 6. Which of the following microscopes can achieve the greater magnification a. Scanning tunnelling microscope 7. Which of the following are correct statements about buckyball a. It contains 60 atoms b. It is a carbon molecule c. It is shaped like a volleyball 8. Which of the following are considered techniques that fall within the category called topdown approaches to nano-fabrication a. Electron beam b. Micro imprint lithography c. X-ray lithography 9. Which of the following are considered techniques that fall within the category called bottomup approaches to nano-fabrication a. Chemical vapor deposition to produce carbon nanotubes b. Scanning probe techniques c. Self-assembly 10. Dip-pen nanolithography uses which one of the following techniques and/or devices: a. Atomic force microscope 11. A self-assembled monolayer has a thickness that is which of the following a. One molecule Multiple choice questions chapter 34: 1. The three components of an automated system are a. Control system b. Power c. Program of instructions 2. The three basic types of automated systems used in manufacturing are fixed automation, programmable automation and flexible automation. Flexible automation is an extension of programmable automation in which there is virtually no lost production time for setup changes or reprogramming a. True 3. The input/output relationship of a sensor is called which one of the following a. Transfer function 4. A stepper motor is which one of the following types of devices a. Actuator 5. A contact input interface is a device that reads analog data into the computer from an external source a. The data is binary not analog. Thus - false 6. A programmable logic controller (PLC) normally replaces which one of the following control applications a. Relay control panel 7. The standard coordinate system for numerical control machine tools is based on which one of the following a. Cartesian coordinate 8. Identify which of the following applications are point-to-point and not continuous path operations a. Drilling b. Hole punching in sheet metal c. Spot welding 9. The ability of positioning system to return to a previously defined location is measured by which one of the following terms: a. Repeatability 10. The ATP command GORGT is which of the following a. Continuous path command b. Tool path command 11. The arm and body of a robot manipulator generally performs which one of the following functions in an application a. Positions the wrist within the work volume 12. A SCARA robot is normally associated with which one of the following applications a. Assembly 13. In robotics, spray-painting applications are classified as which of the following a. Continuous path operation 14. Which of the following are characteristics of work situations that tend to promote the substitution of a robot in place of a human worker a. Hazardous work environment b. Repetitive work cycle c. Multiple work shifts Multiple choice questions chapter 35 1. Material handling is usually not associated with transportation between facilities that involves rail, truck, air or waterway of goods a. True 2. Fixed routing is associated with which of the following types of manufacturing systems a. Automated production lines b. Manual assembly lines 3. Which of the following types of material handling equipment are typically used in a process type layout a. Cranes and hoists b. Fork lift trucks 4. Batch model production lines are most suited to which one of the following production situations a. Medium Production 5. Precedence constraints are best described by which one of the following a. Sequence in which the work elements must be done 6. Which of the following phrases are most appropriate to describe the characteristics of tasks that are performed at automated workstations a. Involves a single work element b. Involves straight line motions c. Simple 7. The transfer line is most closely associated with which one of the following types of production operations a. Machining 8. A dial indexing machine uses which one of the following types of work part transfer a. Synchronous 9. Production flow analysis is a method of identifying part families that uses data from which of the following sources a. Route sheets 10. Most parts classification and coding systems are based on which of the following types of part attributes a. Design b. Manufacturing 11. What is the dividing line between a manufacturing cell and a flexible manufacturing system a. Four machines 12. A machine capable of producing different part styles in a batch mode of operation qualifies as a flexible manufacturing system a. A flexible manufacturing system does not normally operate in batch mode – thus false 13. A physical layout of a flexible manufacturing system is determined principally by which one of the following a. Material handling system 14. Industrial robots can in general most easily handle which one of the following part types in a flexible machining system a. Rotational parts 15. Flexible manufacturing systems and cells are generally applied in which one of the following areas a. Medium-volume, medium variety production 16. Which one of the following technologies is most closely associated with flexible machining systems a. Numerical control Multiple Choice questions Chapter 36: 1. The manufacturing engineering department in an organization is best described as which one of the following: a. Technical staff function 2. Which of the following are the usual responsibilities of the manufacturing engineering department (four best answers) a. Advising on design for manufacturability b. Marketing the project c. Process planning d. Solving technical problems in the production department 3. Which of the following are considered basic processes as opposed to secondary processes (four correct answers) a. Forward hot extrusion to produce aluminium bar b. Impression die forging c. Rolling of sheet steel d. Sand casting 4. Which of the following would be considered secondary processes as opposed to basic processes a. Drilling b. Extrusion to produce steel automotive components c. Sheet-metal stamping d. Ultrasonic machining 5. Which of the following are operations to enhance physical properties (three correct answers) a. Annealing b. Sintering of pressed ceramic powders c. Tempering of martensitic steel 6. A route sheet is a document whose principal functions is which one of the following a. Provides authorisation for material handlers to move the part 7. In a make or buy situation the decision should always be to purchase the component if the vendor’s quoted price is less than the in house estimated cost of component: a. False 8. Which one of the following types of computer-aided processes planning relies on part classification and coding in group technology a. Retrieval CAPP