ORDNANCE FACTORY BOARD 2017 QUESTION PAPER FITTER
1. The operation of threading a drilled hole is called (a) Lapping (b) Reaming (c) Threading (d) Tapping 2. In a tap drill size m.12×1.75 the size of the hole is (a) 9.5mm (b) 9.86mm (c) 10.5mm (d)16mm 3. Number of taps generally used for hand tapping are (a) One (b) Two (c) Three (d) Four 4. Which tool is used to cut an external thread ? (a) Twist drill (b) Tap (c) Die (d) Halfnut 5. The process of precision Grinding of part with loose dust type abrasive is known as (a) Honing (b) Buffing (c) Lapping (d) Polishing 6. Which of the following can be used to scribe lines parallel to the edge of a part (a) Vernier Caliper (b) Screw gauge (c) Divider (d) Hermaphrodites caliper 7. F...