GATE ME 2015 Set 1 — Question 47
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+2 / -0MediumRolling (Load & Torque)FormingManufacturing Processes
Manufacturing Processes → Forming → Rolling (Load & Torque)
Last updated
Question
In a slab rolling operation, the maximum thickness reduction () is given by , where is the radius of the roll and is the coefficient of friction between the roll and the sheet. If , the maximum angle subtended by the deformation zone at the centre of the roll (bite angle in degrees) is ________
Correct answer
5.6 to 5.8
Solution
The bite angle is the angle subtended at the roll centre by the arc of contact. The strip can be drawn into the roll gap only if the horizontal component of friction exceeds that of the roll pressure:So the maximum bite angle is(For small angles , and with this is where the given result comes from.)Answer: about (range 5.6 to 5.8)
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 Forming
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…