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16. 

The first industrial robot for commercial uses was installed in a Japanese plant at Toyota Automatic Loom Company, the parent company of the Toyota Automobile Group. When did this robot go into operation?
A. June 1965
B. November 1966
C. December 1967
D. April 1970
E. None of the above
17. 

What is the difference between integral and derivative control?
A. derivative control does not eliminate offset error
B. integral control has slower response to an error signal.
C. derivative control responds to a change in the rate of change in the error signal
D. All of the above
E. None of the above
18. 

The program counter:
A. decides which program to run
B. counts the number of instructions that have been executed
C. contains the address of the next instruction to be executed
D. is where arithmetic is done in a computer.
E. None of the above
19. 

Digital signals:
A. can have three possible levels
B. are assigned values of 1 or 0 depending on the voltage level
C. have a sinusoidal shape.
D. have a frequency measured in units of hertz
E. None of the above
20. 

There are several procedures you can implement to provide maximum security. The most important of these is:
A. do not leave training manuals unsecured
B. run regular simulated tests using TARP (testing of Applications Recovery Planes)
C. Verify the reputation of the people installing your system
D. do not allow unbonded service people to work on your equipment
E. None of the above