ISRO Mechanical PYQs: 40 Welding, Casting & Machining Questions | S K Mondal Sir

ISRO Mechanical PYQs: 40 previous year questions on welding, casting and machining, selected and solved by S K Mondal Sir (Ex-IES). The most important Production Engineering questions asked in the ISRO Scientist/Engineer 'SC' (Mechanical) exam, covering arc and resistance welding, welding defects, casting processes, patterns and solidification, metal cutting, tool life and machining processes. Learn the concept and shortcut behind each PYQ, because ISRO repeats these concepts year after year. Final revision for the ISRO SC CBT on 29 October 2026. Also useful for GATE ME & PI, ESE, BARC, DRDO, PSUs, SSC JE and RRB JE. 📅 ISRO SC 2026 CBT: 29 October 2026 (Thursday) 🔗 Official notice: https://www.isro.gov.in/ICRB_Recruitm... 📄 Official ISRO Mechanical Previous Year Papers: • Mechanical 2023: https://www.isro.gov.in/media_isro/pd... • Mechanical 2025: https://www.isro.gov.in/media_isro/pd... 📚 More ISRO Practice: • ISRO 2026 Mechanical: Top 40 Most Expected Questions:    • ISRO 2026 Mechanical: Top 40 Most Expected...   • ISRO Production MCQs:    • SRO Mechanical Production MCQs: Welding, C...   • ISRO 2026 Mechanical: 250 New Questions Marathon:    • ISRO 2026 Mechanical: 250 New Questions Ma...   📚 ISRO Scientist SC Mechanical Preparation Playlist:    • ISRO 2026 Mechanical Engineering | Practic...   📚 Learn Production Engineering in Depth: • Welding & Casting One Shot:    • Welding & Casting One Shot: Gas, Arc, Resi...   • Theory of Metal Cutting One Shot:    • Theory of Metal Cutting One Shot: Merchant...   🗓️ Free Personalised Study Planner: https://unacademy.com/content/gate/fr... 👨‍🏫 S K Mondal Sir (Ex-IES) | Unacademy GATE – ME, PI, XE 🎯 Subscription: https://unacademy.com/goal/Gate/QGFRK... Referral code: KHUSHRAHO 📢 Telegram: https://t.me/skmondalmaa #ISRO #ISROPYQ #ProductionEngineering