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31. 

The output of a thermocouple is:
A. a capacitance
B. a resistance
C. a current
D. a voltage
E. None of the above
32. 

Compared to humans, machines:
A. can make more complex decisions based on unexpected circumstances
B. can work in harsher environments
C. make fewer errors
D. (a) and (c)
E. None of the above
33. 

A solenoid:
A. can be used only in de circuits
B. is spring operated
C. is widely used in industrial automation
D. is related to an aneroid
E. None of the above
34. 

Most industrial control applications:
A. can be solved using more than one method of control
B. can be done more reliably using solid-state methods
C. must have the process specified correctly to be successful
D. All of the above
E. None of the above
35. 

When was the first successful industrial robot installed in the General Motors Plant in USA?
A. 1960
B. 1961
C. 1963
D. 1967
E. None of the above