A remote solar-powered weather station on an open plateau transmitted erratic barometric and temperature readings each afternoon, while overnight transmissions remained accurate. Field technicians inspected the unit and found no electrical faults or battery degradation. They observed that a recently installed steel sunshield sat two millimeters from the internal temperature probe, with dark matte paint covering its surface. After technicians elevated the shield by four inches and applied a reflective white coating, afternoon telemetry stabilized completely.
Based on the passage, what most likely caused the afternoon transmission errors?
- AThe erratic barometric readings caused the dark surface coating on the sunshield to deteriorate.
- Solar heat absorbed by the dark, closely mounted shield distorted the sensor measurements during daylight hours.Cevap
- CInternal battery degradation repeatedly caused power shortages whenever daytime temperatures peaked.
- DFrequent desert dust storms accumulated on the probe and intermittently blocked outgoing radio signals.
Cevap
Solar heat absorbed by the dark, closely mounted shield distorted the sensor measurements during daylight hours.
The passage details that errors occurred only in the afternoon, the shield was dark and placed extremely close to the probe, and the issue was resolved by moving the shield farther away and making it reflective. These facts together imply that solar heating of the dark shield distorted the temperature readings during the sunniest part of the day.
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Recognizing Implied Cause and Effect
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