``` * **Reasoning:** Includes "GATE 2017 ME", "Set 1", "Q53" for specificity. "Sprue Molten Metal Velocity Calculation" is the core problem. "ExamPrev" for branding. **2. Meta Description (`` tag):** * **Purpose:** A brief summary of the page content, displayed under the title in search results. Should be descriptive and include keywords. * **Characters:** ~150-160 optimal for display. * **Generated:** ```html ``` * **Reasoning:** Explicitly mentions "GATE 2017 Mechanical Engineering (Set 1) Question 53" and the action "Solve/Calculate." Includes specific details from the problem (sprue, molten metal, dimensions) and the underlying principle ("fluid mechanics," "casting applications"). **3. Meta Keywords (`` tag):** * **Purpose:** While less directly impactful for ranking today, still provides context to search engines and can help with discovery for very specific queries. * **Generated:** ```html ``` * **Reasoning:** Includes the provided specific keyword (`mechanical-engineering-gate-2017-set-1-question-53`), along with variations and related concepts (sprue velocity, molten metal, sand mould, casting, foundry, fluid mechanics, Bernoulli's principle, exam preparation, etc.) that users might search for. **4. Open Graph / Social Media Tags (for sharing on platforms like Facebook, Twitter, LinkedIn):** * **Purpose:** Controls how the link appears when shared. * **Generated:** ```html ``` * **Reasoning:** Uses the optimized title and description. Specifies the URL and site name. `og:type` as `article` is appropriate for a question/solution page. An image tag would enhance social sharing but requires an actual image URL. **5. H1 Heading (for the page's main content):** * **Purpose:** The most important heading on the page, usually mirroring the title. Crucial for both SEO and user experience. * **Generated:** ```html

GATE 2017 Mechanical Engineering (Set 1) Question 53: Sprue Molten Metal Velocity Calculation

``` * **Reasoning:** Clearly states the question context and topic, using important keywords. ---

Mechanical Engineering > GATE 2017 SET-1 > Casting

A sprue in a sand mould has a top diameter of 20 mm and height of 200 mm. The velocity of the molten metal at the entry of the sprue is 0.5 m/s. Assume acceleration due to gravity as 9.8 m/s² and neglect all losses. If the mould is well ventilated, the velocity (upto 3 decimal points accuracy) of the molten metal at the bottom of the sprue is ________ m/s.

Correct : 2.05

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