Unit 6: Robotic Sensor Applications and Use cases from Industry - Practice Quiz

1 What does a tactile sensor help a robot detect?

2 Which robotic task commonly uses tactile sensing?

3 What is a main feature of a soft robot?

4 Which sensor is useful for detecting bending in a soft robotic arm?

5 Which sensor can help a welding robot follow a joint accurately?

6 What is the purpose of a welding arc sensor?

7 Which sensor is commonly used to measure the distance to nearby objects?

8 How can cameras help a mobile robot navigate?

9 What does an inertial measurement unit, or IMU, commonly measure?

10 What does a chemical sensor detect?

11 Which sensor is commonly used to measure acidity?

12 Which application can use a gas sensor on a robot?

13 Which sensor is often used in a wearable fitness tracker?

14 What can an accelerometer in a wearable device detect?

15 Which sensor can help an agricultural robot decide when crops need water?

16 How can cameras be used in agricultural robots?

17 Which sensor can help a military robot detect nearby obstacles?

18 What is one use of sensors on an unmanned military vehicle?

19 Which sensor can help a healthcare robot monitor a patient's body temperature?

20 How can sensors help a robotic prosthetic hand?

21 A robotic gripper must pick up fragile glass objects without cracking them. Which tactile-sensing capability is most important for this task?

22 A robot is sorting objects covered by a thin opaque sheet. Which tactile-sensing method would best help it distinguish a hard object from a soft object?

23 Why are pressure sensors commonly embedded in pneumatic soft robotic actuators?

24 A soft robotic gripper handles fruits with different shapes and firmness levels. Which sensor arrangement would most directly improve adaptive gripping?

25 During robotic arc welding, the workpiece is slightly misaligned from its expected position. Which sensor is most useful for maintaining the weld path?

26 A laser seam-tracking sensor is installed ahead of a welding torch. What is its primary role?

27 A mobile robot operates in a warehouse where shelves can change position. Which sensor combination is most suitable for detecting obstacles and updating a local map?

28 A delivery robot uses wheel odometry but gradually drifts from its actual position. Which additional sensor would best reduce this accumulated error in an outdoor environment?

29 A robot must navigate through a dim corridor containing transparent obstacles. Which sensing approach is most reliable as a primary aid?

30 A service robot monitors indoor air quality and must warn occupants when carbon monoxide reaches a hazardous level. Which sensor is required?

31 A robotic platform analyzes water from a treatment plant. Which sensor would directly help determine whether the water is acidic or alkaline?

32 A wearable device is designed to detect whether a user has fallen. Which measurement is most useful for identifying a sudden fall event?

33 A wearable rehabilitation device measures a patient's elbow movement during exercise. Which sensor is most appropriate for estimating joint angle?

34 An autonomous irrigation robot must water only crop areas with insufficient moisture. Which sensor provides the most direct measurement for this decision?

35 A farm robot uses cameras to identify diseased leaves. Which additional sensor would most improve detection when disease changes leaf temperature before visible symptoms appear?

36 An unmanned ground vehicle must detect nearby personnel and obstacles while operating at night. Which sensor combination is most suitable?

37 A reconnaissance drone must maintain stable flight during strong wind gusts. Which sensor data is most important for rapid stabilization?

38 A hospital robot transports medication and must avoid entering a patient's bed area. Which sensor is most useful for detecting the boundary around the bed?

39 A rehabilitation exoskeleton should assist a patient only when the patient begins moving. Which sensor signal would provide the most direct intent cue?

40 A wearable health monitor reports a falsely low heart rate whenever the user runs. Which improvement would most likely reduce motion-related errors?

41 A robotic gripper must handle objects whose stiffness is unknown and whose surfaces may be wet. Which tactile-sensing strategy best supports reliable grasping while minimizing object damage?

42 A tactile array reports a constant increase in pressure across every taxel immediately after the gripper closes, although the object has not moved. Which diagnosis is most likely, and what compensation is appropriate?

43 A pneumatic soft continuum arm bends differently at the same commanded pressure after repeated operation. Which sensing architecture most directly enables closed-loop compensation for this behavior?

44 A soft robotic gripper must grasp an irregular fruit without bruising it, but its pneumatic pressure is affected by ambient temperature. Which control variable is most suitable for the primary safety constraint?

45 During robotic arc welding, the seam tracking camera becomes unreliable because of arc glare and smoke. Which sensor arrangement provides the most robust complementary measurement for maintaining torch alignment?

46 A weld robot shows periodic lateral seam-tracking error even though the vision system detects the seam correctly. The error frequency matches wire-feed fluctuations. Which corrective action is most appropriate?

47 A mobile robot uses wheel odometry and lidar in a warehouse containing long, repetitive aisles. Which failure mode is most likely if localization relies heavily on scan matching, and which mitigation is strongest?

48 A delivery robot must navigate indoors where lidar is degraded by transparent doors and cameras are degraded by low light. Which sensor-fusion design is most appropriate?

49 An electronic nose identifies solvent leaks using an array of partially selective gas sensors. Sensor responses drift with humidity and temperature. Which method best preserves classification accuracy over time?

50 A robot samples air near a suspected toxic plume, but its sensor has a slow response and the robot moves rapidly through the plume. Which design change most improves source localization?

51 A wearable rehabilitation device estimates knee angle using inertial sensors, but readings drift during a long exercise session. Which additional measurement most directly constrains accumulated orientation error?

52 A wearable fall detector must distinguish a true fall from a user quickly sitting in a chair. Which feature combination is most discriminative?

53 A precision-irrigation system uses soil-moisture sensors in fields with strongly varying soil texture. A single moisture threshold causes overwatering in some zones. Which strategy is most appropriate?

54 An agricultural robot detects crop stress using multispectral imagery, but shadows and changing sunlight produce false positives. Which processing approach best addresses the issue?

55 An unmanned ground vehicle operates in a GPS-denied urban environment where communications may be intermittent. Which navigation architecture best supports continued operation?

56 A reconnaissance robot must detect a concealed person in vegetation while minimizing false alarms from warm rocks and sunlit surfaces. Which sensor combination is most effective?

57 A surgical robot uses force sensing at the instrument tip, but cable friction creates hysteresis between measured motor torque and actual tissue force. Which solution best improves force-limited manipulation?

58 A hospital transport robot must operate near patients, wheelchairs, and IV poles. Which sensing policy most appropriately balances collision avoidance and efficient motion?

59 A wearable glucose-monitoring system produces occasional physiologically impossible jumps during exercise. Which validation method should be used before triggering an automated insulin adjustment?

60 A robot must insert a connector into a socket with tight positional tolerance. Vision provides approximate alignment, while tactile sensors detect contact. Which control strategy best handles small pose errors after contact?