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Automation System
Comments
Question
Actuators are used to:
Options
A. sense an object
B. activate a chemical
C. make a mechanical movement
D. All of the above
E. None of the above
Correct Answer
make a mechanical movement
Automation System problems
Search Results
1. Which item best describes a CAM technology?
Options
A. Numerical control
B. Drafting
C. Documentation
D. Geometric modeling
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Numerical control
2. Pressure sensors:
Options
A. use the piezoresistive effect in strain gauge sensors
B. use an aneroid chamber with a variable resistance output
C. use capacitive variations to sense pressure
D. All of the above
E. None of the above
Show Answer
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Discuss
Correct Answer: All of the above
3. The physical arrangement of equipment in a network is called:
Options
A. topology
B. pairing
C. queuing
D. logic
E. None of the above
Show Answer
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Discuss
Correct Answer: topology
4. Digitizers can be converted from "dumb" to "smart" through the addition of:
Options
A. a microprocessor
B. an electromagnetic coupling
C. keyboard
D. a scanner
E. None of the above
Show Answer
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Discuss
Correct Answer: a microprocessor
5. If the period of a sine wave is 0.001 second, the frequency of the sine wave is:
Options
A. 0.001 Hz
B. 1,000 Hz
C. 10,000 Hz
D. 10 Hz
E. None of the above
Show Answer
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Discuss
Correct Answer: 1,000 Hz
6. Three different aspects of colour are used to define specific colours. They are hue, saturation, and:
Options
A. metamer
B. value
C. gray scale
D. shading
E. None of the above
Show Answer
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Discuss
Correct Answer: value
7. A servo controlled robot:
Options
A. stop only at fixed points on each axis
B. can accelerate
C. must be hydraulically driven
D. must be electrically driven
E. None of the above
Show Answer
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Discuss
Correct Answer: can accelerate
8. A disadvantage of Numerical Control (NC) is:
Options
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
Show Answer
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Discuss
Correct Answer: the tape and tape reader are not reliable
9. If the transient response of a system is overdamped:
Options
A. the value of the output exceeds the value of the input at times during the transient period.
B. the value of the output never exceeds the value of the input during the transient period.
C. the value of the output never stabilizes.
D. All of the above
E. None of the above
Show Answer
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Discuss
Correct Answer: the value of the output never exceeds the value of the input during the transient period.
10. A solenoid:
Options
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
Show Answer
Scratch Pad
Discuss
Correct Answer: is widely used in industrial automation
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