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PASS ECOR 1044 Questions with Correct Verified Answers
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PASS ECOR 1044 Questions with Correct Verified Answers
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PASS ECOR 1044 Questions withCorrect Verified Answers
What are the stages of design? - ANSWER 1. Research
2. Design Requirements
3. Feasibility
4. Conceptualization
5. Preliminary Design
6. Detailed Design
7. Integration and Testing
8. Production Planning
What was Skunk Works Projects responsible for designing? - ANSWER Aircraft designs
Closed loop system terminologies - ANSWER Process variable
sensor
set point
error
rise time
percent overshoot
, settling time
steady state overshoot
What is an Open Loop control system? - ANSWER The control action is totally
independent of the output of the system.
Open-loop systems can deviate from desired output due to various disturbances:
- Winds in case of aircraft
- Undulated road in case of cars
- Speed differences in wheels of robot (or slippage)
What is a closed loop control system? - ANSWER Output is continuously compared with
the desired result
- The control output (system input) to the process is modified and adjusted to reduce
the deviation
- This forces the response to follow the reference
- Feedback control systems can be very robust against internal or
external disturbances. (When designed properly!)
What are the definitions of these closed loop terminologies? Process Variable, Sensor,
The Set Point and Error. - ANSWER • Process Variable (PV) - the system parameter
that needs to be controlled, such as temperature (ºC), pressure (psi), flow rate (ltr/min)
• Sensor - used to measure the process variable and provide feedback to the
control system.
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