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Course 3 Knowledge check — Course 003 Module — Environmental, Light & Sensor Monitoring Check

Course 3 · Knowledge check

Course 003 Module — Environmental, Light & Sensor Monitoring Check

Complete each item before opening the answer panel. Use missed rationales to return to the matching lesson.

Formative learning check: this self-check is for study only and does not create a graded certification record.

1. Which pair belongs together when interpreting basic room-level VPD context?

  1. Temperature and relative humidity
  2. RH and plant count
  3. PPFD and fertilizer EC
  4. Photoperiod and inventory weight
Check answer and rationale

Answer: A. Temperature and relative humidity

Temperature and relative humidity. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

2. A target is 25 °C and an identified sensor reads 26.5 °C. What should the record preserve?

  1. Only the target
  2. Both the target and the measured value as different fields or concepts
  3. Only the target relabeled as observation
  4. An average of target and measurement
Check answer and rationale

Answer: B. Both the target and the measured value as different fields or concepts

Both the target and the measured value as different fields or concepts. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

3. What makes a repeat PPFD map comparable to the original map?

  1. Using only the center point
  2. Changing height at each point
  3. Consistent grid positions, measurement plane and sensor orientation
  4. Replacing measurements with fixture wattage
Check answer and rationale

Answer: C. Consistent grid positions, measurement plane and sensor orientation

Consistent grid positions, measurement plane and sensor orientation. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

4. A canopy average appears acceptable but corners are much dimmer. What information should be retained?

  1. Only the average
  2. Only the maximum
  3. Only the fixture model
  4. The spatial grid/distribution as well as any summary
Check answer and rationale

Answer: D. The spatial grid/distribution as well as any summary

The spatial grid/distribution as well as any summary. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

5. One sensor disagrees with several peers. What is the first useful question?

  1. Whether placement, verification status or local conditions explain the disagreement
  2. Which set point should be changed immediately
  3. Which sensor should be deleted
  4. Which cultivar should be blamed
Check answer and rationale

Answer: A. Whether placement, verification status or local conditions explain the disagreement

Whether placement, verification status or local conditions explain the disagreement. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

6. What can a trend reveal that one daily average may hide?

  1. The legal authority of a technician
  2. Short excursions, transitions or equipment cycling
  3. Plant genetics
  4. The exact root cause of every alarm
Check answer and rationale

Answer: B. Short excursions, transitions or equipment cycling

Short excursions, transitions or equipment cycling. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

7. A device fault requires a repair outside Technician I authorization. What should happen?

  1. Repair it anyway
  2. Ignore it until failure
  3. Document and escalate according to procedure, including any required out-of-service step
  4. Change unrelated set points
Check answer and rationale

Answer: C. Document and escalate according to procedure, including any required out-of-service step

Document and escalate according to procedure, including any required out-of-service step. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

8. Why is recognizing an equipment fault different from being authorized to repair it?

  1. Every observer is automatically a repair technician
  2. Faults never need escalation
  3. Authorization only applies to lighting
  4. Role competence and authorization boundaries still control the permitted response
Check answer and rationale

Answer: D. Role competence and authorization boundaries still control the permitted response

Role competence and authorization boundaries still control the permitted response. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

9. Which element should appear in a reconstructable alarm record?

  1. Alarm identity, affected location/asset, time and relevant observed values
  2. A guessed root cause only
  3. The target copied as the actual reading
  4. No timestamp if the alarm cleared
Check answer and rationale

Answer: A. Alarm identity, affected location/asset, time and relevant observed values

Alarm identity, affected location/asset, time and relevant observed values. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

10. An alarm cleared after an allowed check, but the cause is unknown. What is the honest handoff status?

  1. Root cause fixed
  2. Alarm cleared; cause unresolved; checks and follow-up documented
  3. No handoff needed
  4. Cause confirmed by alarm clearance
Check answer and rationale

Answer: B. Alarm cleared; cause unresolved; checks and follow-up documented

Alarm cleared; cause unresolved; checks and follow-up documented. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

11. A measurement is missing. What should be entered in its place?

  1. The target
  2. The previous reading
  3. The missing-data status or controlled late-entry information required by procedure, not an invented value
  4. A remembered guess as contemporaneous data
Check answer and rationale

Answer: C. The missing-data status or controlled late-entry information required by procedure, not an invented value

The missing-data status or controlled late-entry information required by procedure, not an invented value. This preserves the measurement, data-quality, record or role-boundary principle being assessed.

12. A sensor near a wet surface reads much higher RH than canopy sensors. What should be preserved?

  1. Only the highest RH value
  2. A room-wide diagnosis
  3. A new humidity strategy
  4. The local placement context and comparison before deciding whether it represents the crop
Check answer and rationale

Answer: D. The local placement context and comparison before deciding whether it represents the crop

The local placement context and comparison before deciding whether it represents the crop. This preserves the measurement, data-quality, record or role-boundary principle being assessed.