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Course 2 Knowledge check — Environmental Data, Sensors & Equipment Response — Formative Check

Technician II · Course 2 · Knowledge check

Environmental Data, Sensors & Equipment Response — Formative Check

Answer each item before opening its rationale. Use missed items to identify which lesson evidence you should revisit.

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

1. Formative: A canopy sensor reads higher humidity than the wall controller. What should be documented before deciding which is “correct”?

  1. Exact location, height, shielding, time, crop context and comparison method.
  2. Only the higher number.
  3. Only the controller target.
  4. Only the sensor brand.
Check answer and rationale

Answer: A. Exact location, height, shielding, time, crop context and comparison method.

Exact location, height, shielding, time, crop context and comparison method. This preserves the evidence and role boundary required by the referenced verification framework.

2. Formative: Why should repeated PPFD measurements use the same sensor orientation and canopy plane?

  1. Because orientation changes nutrient uptake directly.
  2. To make the measurements comparable and reduce geometry-driven differences.
  3. Because PPFD is a room-average value only.
  4. Because all sensors auto-correct any geometry change.
Check answer and rationale

Answer: B. To make the measurements comparable and reduce geometry-driven differences.

To make the measurements comparable and reduce geometry-driven differences. This preserves the evidence and role boundary required by the referenced verification framework.

3. Formative: A single emitter tests correctly. What does that establish about a 40-emitter zone?

  1. The whole zone is uniform.
  2. The filter is clean.
  3. Only that one location performed correctly; representative distribution still needs verification.
  4. Pressure is identical everywhere.
Check answer and rationale

Answer: C. Only that one location performed correctly; representative distribution still needs verification.

Only that one location performed correctly; representative distribution still needs verification. This preserves the evidence and role boundary required by the referenced verification framework.

4. Formative: A fault requires opening an electrical enclosure not assigned to the operator. What is the correct action?

  1. Open it carefully with insulated gloves.
  2. Ask a coworker to watch while opening it.
  3. Reset power repeatedly.
  4. Preserve equipment status and refer the work to the qualified/authorized role.
Check answer and rationale

Answer: D. Preserve equipment status and refer the work to the qualified/authorized role.

Preserve equipment status and refer the work to the qualified/authorized role. This preserves the evidence and role boundary required by the referenced verification framework.

5. Formative: The pump is off but a line remains pressurized. What hazard remains relevant?

  1. Stored pressure energy.
  2. No energy remains once the pump stops.
  3. Only electrical energy can remain.
  4. Only chemical exposure matters.
Check answer and rationale

Answer: A. Stored pressure energy.

Stored pressure energy. This preserves the evidence and role boundary required by the referenced verification framework.

6. Formative: What is the safest way to handle an inconvenient outlier that may be real?

  1. Delete it immediately.
  2. Preserve it, verify data quality and document the disposition.
  3. Replace it with the average.
  4. Hide it from the trend display permanently.
Check answer and rationale

Answer: B. Preserve it, verify data quality and document the disposition.

Preserve it, verify data quality and document the disposition. This preserves the evidence and role boundary required by the referenced verification framework.

7. Formative: Two colocated sensors remain consistently offset after stabilization. What does this most strongly justify?

  1. A room-wide HVAC change.
  2. Deleting both sensors.
  3. A documented sensor comparison/calibration investigation.
  4. Assuming the crop caused the offset.
Check answer and rationale

Answer: C. A documented sensor comparison/calibration investigation.

A documented sensor comparison/calibration investigation. This preserves the evidence and role boundary required by the referenced verification framework.

8. Formative: A controller says “ON,” but there is no physical process response. How should the condition be recorded?

  1. As a confirmed motor failure.
  2. As a confirmed sensor failure.
  3. As normal because the command is ON.
  4. As a command-response mismatch pending further verification.
Check answer and rationale

Answer: D. As a command-response mismatch pending further verification.

As a command-response mismatch pending further verification. This preserves the evidence and role boundary required by the referenced verification framework.

9. Formative: What makes nominal emitter flow insufficient for troubleshooting installed irrigation?

  1. Clogging, pressure, filtration, line position and wear can change actual delivery.
  2. Nominal ratings are always intentionally false.
  3. Water pressure never affects emitters.
  4. Installed systems do not need field checks.
Check answer and rationale

Answer: A. Clogging, pressure, filtration, line position and wear can change actual delivery.

Clogging, pressure, filtration, line position and wear can change actual delivery. This preserves the evidence and role boundary required by the referenced verification framework.

10. Formative: What determines whether a simple-looking equipment adjustment is operator care?

  1. The technician’s confidence.
  2. The controlled equipment procedure and current employer authorization.
  3. The time required.
  4. Whether production is behind schedule.
Check answer and rationale

Answer: B. The controlled equipment procedure and current employer authorization.

The controlled equipment procedure and current employer authorization. This preserves the evidence and role boundary required by the referenced verification framework.

11. Formative: A task requires guard removal to reach the fault. What is the key boundary cue?

  1. The guard is inconvenient.
  2. The equipment is old.
  3. Protected access to a hazard that may require the authorized servicing/energy-control process.
  4. The fault has happened before.
Check answer and rationale

Answer: C. Protected access to a hazard that may require the authorized servicing/energy-control process.

Protected access to a hazard that may require the authorized servicing/energy-control process. This preserves the evidence and role boundary required by the referenced verification framework.

12. Formative: After authorized maintenance, what should happen before closing the verification record?

  1. Close it when maintenance leaves.
  2. Erase the pre-repair data.
  3. Change the original fault classification to “normal.”
  4. Repeat the relevant performance measurement and document whether intended response was restored.
Check answer and rationale

Answer: D. Repeat the relevant performance measurement and document whether intended response was restored.

Repeat the relevant performance measurement and document whether intended response was restored. This preserves the evidence and role boundary required by the referenced verification framework.