GATE ME 2024 Set 1 — Question 30

MCQ+1 / -0.33EasyAbrasive MachiningMachining & Machine ToolsManufacturing Processes

Manufacturing Processes → Machining & Machine Tools → Abrasive Machining

Last updated 5 September 2026

Question

The grinding wheel used to provide the best surface finish is

Correct answer (D) A80L5V Solution In the standard grinding wheel marking system (e.g., A80L5V), the number following the abrasive type (A for Aluminum Oxide) represents the grit or grain size. Higher numbers indicate finer grains. Finer grains are used for finishing operations because they remove less material per pass and leave smaller scratches, resulting in a better surface finish. Among the options, 80 is the highest grit number, representing the finest grain size. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

Review answer and solution without JavaScript

Interactive answer checking needs JavaScript. The published solution is available below.

Correct answer (D) A80L5V Solution In the standard grinding wheel marking system (e.g., A80L5V), the number following the abrasive type (A for Aluminum Oxide) represents the grit or grain size. Higher numbers indicate finer grains. Finer grains are used for finishing operations because they remove less material per pass and leave smaller scratches, resulting in a better surface finish. Among the options, 80 is the highest grit number, representing the finest grain size.

Continue learning with Success Tracker

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.