ITI Mechanic Lens/ Prism Grinding is a simple e-Book for ITI Lens/ Prism Grinding JOB Interview & Apprentice Exam. It contains objective questions with underlined & bold correct answers MCQ covering all topics including all about safety aspect related to the trade, basic fitting operations viz., making, filing, sawing, chiseling, drilling, tapping, grinding, Mirrors (glass mirror, furniture mirror, concave mirror, convex mirror etc.), Painting of glass, Polishing of Glass, and Periscope, Lens Format cutting machine.