GATE ME 2016 Set 3 — Question 31
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.MCQ+1 / -0.33MediumSolidification & Chvorinov's RuleCastingManufacturing Processes
Manufacturing Processes → Casting → Solidification & Chvorinov's Rule
Last updated
Question
Equal amounts of a liquid metal at the same temperature are poured into three moulds made of steel, copper and aluminum. The shape of the cavity is a cylinder with diameter. The size of the moulds are such that the outside temperature of the moulds do not increase appreciably beyond the atmospheric temperature during solidification. The sequence of solidification in the mould from the fastest to slowest is (Thermal conductivities of steel, copper and aluminum are , and , respectively.
Specific heats of steel, copper and aluminum are , and , respectively.
Densities of steel, copper and aluminum are , and , respectively.)
Specific heats of steel, copper and aluminum are , and , respectively.
Densities of steel, copper and aluminum are , and , respectively.)
Correct answer
(C) Copper - Aluminum - Steel
Solution
The rate of solidification depends on the thermal effusivity (heat diffusivity) of the mould material, defined as . A higher effusivity means the mould can extract heat faster, leading to faster solidification.
1.Copper:
2.Aluminum:
3.Steel:
Comparing the values, the sequence from fastest to slowest is Copper > Aluminum > Steel.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…