Mathematics · Aptitude Calculations
Calculate the rotation speed (rpm) required to drill a hole using a tool of diameter φ20 mm in a Mild Steel plate with a recommended cutting speed of 31.4 meters/minute. (Take π ≈ 3.14)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 11256 rpm
- 21000 rpm
- 3500 rpm✓
- 4628 rpm
Correct answer
500 rpm
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Aptitude Calculations MCQs →Want more practice questions on Aptitude Calculations?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Aptitude Calculations