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- Question
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
- Correct Answer
- the tape and tape reader are not reliable
- 1. 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 Discuss
- 2. 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 Discuss
- 3. 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 Discuss
- 4. Which item best describes a CAM technology?
Options- A. Numerical control
- B. Drafting
- C. Documentation
- D. Geometric modeling
- E. None of the above Discuss
- 5. 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 Discuss
- 6. 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 Discuss
- 7. 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 Discuss
- 8. The device that assembles groups of characters into complete messages prior to their entering the CPU is called:
Options- A. a compiler
- B. an interpreter
- C. a communications processor
- D. an editor
- E. None of the above Discuss
- 9. A semi-continuous operation means:
Options- A. the operation is continuous each shift, but stops between shifts
- B. coffee breaks are allowed for the operator
- C. a computer is a required part of the machine
- D. each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
- E. None of the above Discuss
- 10. Which of the following devices could be part of a sensor?
Options- A. thermometer
- B. brake
- C. relay
- D. clutch.
- E. None of the above Discuss
Automation System problems
Search Results
Correct Answer: can accelerate
Correct Answer: value
Correct Answer: make a mechanical movement
Correct Answer: Numerical control
Correct Answer: All of the above
Correct Answer: the value of the output never exceeds the value of the input during the transient period.
Correct Answer: is widely used in industrial automation
Correct Answer: a communications processor
Correct Answer: each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
Correct Answer: thermometer
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