26. Vision sensors:
A. will remain very costly
B. can not improve much in the next decade
C. will more closely match the capabilities of the human eye
D. All of the above
E. None of the above
27. A disadvantage of Numerical Control (NC) is:
A. the computer is not reliable
B. the tape and tape reader are not reliable
C. one operator is needed for each machine.
D. the machine tool can easily overheat
E. None of the above
28. Digitizers can be converted from “dumb” to “smart” through the addition of:
A. a microprocessor
B. an electromagnetic coupling
C. keyboard
D. a scanner
E. None of the above
29. Over the last ten years, productivity has risen most rapidly in:
A. Italy
B. Japan
C. France
D. United States
E. None of the above
30. The difference between a high-technology and a medium-technology robot is the:
A. speed of movement
B. range of motion of the robot
C. accuracy of the robot
D. complexity of the task it can perform.
E. None of the above