GATE ME 2017 Set 1 — Question 54
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+2 / -0MediumRiser & Gating DesignCastingManufacturing Processes
Manufacturing Processes → Casting → Riser & Gating Design
Last updated
Question
A sprue in a sand mould has a top diameter of and height of . The velocity of the molten metal at the entry of the sprue is . Assume acceleration due to gravity as 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 answer
2.04 to 2.07
Solution
Given:
Velocity at entry () =
Height of sprue () =
Acceleration due to gravity () = Applying Bernoulli's equation between the top (1) and bottom (2) of the sprue:Since the mould is well ventilated, . Taking the bottom as the datum ( and ):Rounding to three decimal places, the velocity is .
Velocity at entry () =
Height of sprue () =
Acceleration due to gravity () = Applying Bernoulli's equation between the top (1) and bottom (2) of the sprue:Since the mould is well ventilated, . Taking the bottom as the datum ( and ):Rounding to three decimal places, the velocity is .
Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE ME question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Casting
2026 Set 1 Q30In relation to metal casting defects, match the following | Defect | Description | | :--- | :--- |…2026 Set 1 Q32A work piece is to be firmly held in a fixture. It is to be machined by using a plain slab milling…2026 Set 1 Q59In a deep drawing operation of a rectangular sheet metal, stretching in length results in…2026 Set 1 Q63During orthogonal turning by using a single point cutting tool, feed rate is 0.24 mm/rev. The uncut…2026 Set 1 Q64A drill bit during its lifetime can produce 150 through holes in a plate at a drill-speed of 200…