Differences Between Closed-Loop and Open-Loop CT-AUT Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is a primary advantage of open-loop testing over closed-loop testing?

   • AReduced need for a simulation environment.
   • BBetter repeatability and control over test conditions.
   • CAbility to test complex interactions between systems.
   • DHigher realism of the test environment.
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2. 7foundation · easy

   Which scenario is most appropriate for closed-loop testing?

   • AVerifying the correctness of a lookup table in a software module.
   • BChecking the timing of a CAN message transmission.
   • CTesting an adaptive cruise control system's response to a simulated leading vehicle.
   • DTesting a single sensor's output against a fixed voltage range.
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4. 8foundation · easy

   How does the choice between closed-loop and open-loop testing affect result interpretation?

   • AClosed-loop testing results are always more reliable than open-loop results.
   • BIn closed-loop testing, results are easier to interpret because the environment is more realistic.
   • CIn open-loop testing, results are easier to interpret because the inputs are fixed and the expected outputs are known.
   • DBoth approaches produce results that are equally easy to interpret.
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5. 9foundation · easy

   Which scenario is most appropriate for open-loop testing?

   • ATesting an engine control unit's response to a simulated load change.
   • BTesting a sensor's output for a given set of input values.
   • CTesting an anti-lock braking system's response to varying wheel slip.
   • DTesting a lane-keeping assist system's response to a simulated road curvature.
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6. 10application · medium

   A company is developing a self-parking system that uses ultrasonic sensors to detect obstacles and steers the vehicle automatically. They want to test the system's ability to park in a tight spot. Which testing approach is most appropriate, and what is a key advantage?

   • AOpen-loop testing, because it allows precise control of obstacle positions.
   • BClosed-loop testing, but it is only useful for verifying the sensor logic, not the steering.
   • CClosed-loop testing, because it can simulate the vehicle's movement and sensor readings as the system steers.
   • DOpen-loop testing, because it is simpler and faster for a single parking scenario.
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