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Zorluk: ZorParaphrased Fact Recognition

Read the passage below:

During startup sequences in heavy industrial steam turbines, high-pressure auxiliary oil pumps supply hydrostatic lift to the rotor shaft before roll initiation. This oil film prevents direct metal-to-metal friction against babbitt journal bearings while rotational velocity is insufficient to generate hydrodynamic wedge pressure. Once the turbine accelerates past minimum operational speed, an integrated shaft-driven main pump assumes full lubrication duty, allowing automated logic to deactivate the auxiliary unit to minimize parasitic electrical load. Concurrently, a thermostatically regulated bypass diverts excess lubricant around the plate heat exchanger until fluid viscosity decreases to nominal operating levels.

According to the passage, the secondary pump is shut down after the turbine exceeds its base running velocity in order to conserve power.

Cevap: Cevap

Cevap

True, because the passage directly confirms through synonymous phrasing that the auxiliary lubrication pump is turned off once operational speed is reached to reduce electrical energy consumption.
The passage explicitly supports the assertion: reaching minimum operational velocity triggers the deactivation of the auxiliary pumping system specifically to lower parasitic electrical draw, which is semantically identical to shutting down the secondary pump to conserve power.

Adım Adım Çözüm

1
Locate the portion of the passage detailing the auxiliary oil pump's operational cycle and shutoff conditions.
Identified the clause: 'Once the turbine accelerates past minimum operational speed, an integrated shaft-driven main pump assumes full lubrication duty, allowing automated logic to deactivate the auxiliary unit to minimize parasitic electrical load.'
Targeted retrieval isolates the exact sentence governing pump deactivation.
2
Map the technical vocabulary in the statement to the corresponding expressions in the passage.
'Secondary pump' maps to 'auxiliary unit', 'exceeds its base running velocity' maps to 'accelerates past minimum operational speed', 'shut down' maps to 'deactivate', and 'conserve power' maps to 'minimize parasitic electrical load'.
Paraphrase verification requires establishing exact semantic equivalence across all asserted components.
3
Evaluate whether the causal and chronological relationships in the statement preserve the meaning of the source text.
The statement accurately reflects both the condition (speed threshold reached) and the purpose (reducing electrical demand) without altering causality.
Ensures the paraphrase is fully supported and introduces no distorted inferences.

Anahtar Kavram

Paraphrased Fact Recognition
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Paraphrased Fact Recognition

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