Read the following passage about equipment operation:
During field operations, portable generators require proper ventilation to function reliably. When equipment operates in dusty environments, airborne particles rapidly accumulate on the intake filter screen. Because the restricted screen blocks normal airflow, the engine's internal temperature begins to rise sharply. As a result of this excess heat, the internal thermal sensor is activated. Consequently, the automatic safety relay trips, shutting down the entire electrical circuit to prevent permanent engine damage.
Based on the passage, arrange the following events in the correct causal sequence, from the initial cause to the final outcome:
- 1Airborne particles accumulate on the intake filter screen.
- 2Normal airflow into the engine is blocked by the restricted screen.
- 3The internal thermal sensor is activated by rising temperatures.
- 4The automatic safety relay trips and shuts down the electrical circuit.
Answer
The correct causal order begins with airborne particles accumulating on the intake filter screen, which blocks airflow into the engine, causing internal temperatures to rise and activate the thermal sensor, which ultimately causes the automatic safety relay to trip and shut down the circuit.
The passage provides an explicit sequential causal chain: particle accumulation directly blocks ventilation, the loss of ventilation causes temperature buildup that triggers the thermal sensor, and the sensor trigger directly causes the safety relay to shut down the electrical circuit.
Step-by-Step Solution
Key Concept
Identifying multi-step explicit cause-and-effect chains using directional transition words such as 'because', 'as a result of', and 'consequently'.
Estimated Time:45s