Evaluation

Input	Output
The pump-turbine system in Fig. P3.135 draws water from the upper reservoir in the daytime to produce power for a city. At night, it pumps water from lower to upper reservoirs to restore the situation. For a design flow rate of 15,000 gal/min in either direction, the friction head loss is 17 ft. Estimate the power in kW extracted by the turbine. <image 1> (A) 540 hp (B) 334 hp (C) 410 hp Answer with the option's letter from the given choices directly. No punctuation.	Google: Gemini Pro Vision 1.0 mmmu / Energy_and_PowerPublic A Expected Answer: C Difficulty: Medium Subfield: Fluid Mechanics

Input

Output

The pump-turbine system in Fig. P3.135 draws water from the upper reservoir in the daytime to produce power for a city. At night, it pumps water from lower to upper reservoirs to restore the situation. For a design flow rate of 15,000 gal/min in either direction, the friction head loss is 17 ft. Estimate the power in kW extracted by the turbine. <image 1>

(A) 540 hp

(B) 334 hp

Answer with the option's letter from the given choices directly. No punctuation.

Google: Gemini Pro Vision 1.0

mmmu / Energy_and_PowerPublic

Expected Answer: C

Difficulty: Medium

Subfield: Fluid Mechanics

Evaluation ID: 6d357c43-00f0-4f9c-8e65-d2c20936e1bf
Created: February 21, 2024

Raw Output

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  "model": "google/gemini-pro-vision",
  "choices": [
    {
      "message": {
        "role": "assistant",
        "content": " A"
      },
      "finish_reason": "STOP"
    }
  ],
  "object": "chat.completion",
  "created": 1708556823,
  "usage": {
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    "completion_tokens": 4,
    "total_tokens": 1584
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}