GATE ME 2014 Set 2 — Question 65
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.MCQ+2 / -0.67MediumSheet Metal OperationsFormingManufacturing Processes
Manufacturing Processes → Forming → Sheet Metal Operations
Last updated
Question
A rectangular hole of size is to be made on a thick sheet of steel having ultimate tensile strength and shear strength of and , respectively. The hole is made by punching process. Neglecting the effect of clearance, the punching force (in kN) is
Correct answer
(B) 450
Solution
The punching force () required to create a hole is calculated using the formula:where:
is the perimeter of the hole,
is the thickness of the sheet,
is the shear strength of the material.Given:
Length of the rectangular hole
Width of the rectangular hole
Perimeter ()
Thickness ()
Shear strength () Calculation:Note: The ultimate tensile strength is not used in the calculation of punching force as the primary mode of failure in punching is shear.Therefore, the correct option is (B).
is the perimeter of the hole,
is the thickness of the sheet,
is the shear strength of the material.Given:
Length of the rectangular hole
Width of the rectangular hole
Perimeter ()
Thickness ()
Shear strength () Calculation:Note: The ultimate tensile strength is not used in the calculation of punching force as the primary mode of failure in punching is shear.Therefore, the correct option is (B).
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…