Forensic Ballistics Reviewer 10
1. The shape metal while hot and plastic by hammering or by a forging process,either by hand or by machine.
A. Forging B. Casting C. Blanking D. Shearing Answer: A 2. To cut sheet or bar metal between two blades which pass immediately to each other. A. Forging B. Casting C. Blanking D. Shearing Answer: D 3. Cutting or pressing a piece of metal from a sheet.In ammunition manufacture,the usable part of a blanking operation is the material removed from the hole,usually a disk. A. Forging B. Casting C. Blanking D. Shearing Answer: C 4. An object at or near finished shape which is produced by solidification of a substance in a mold.Pouring molten metal into a mold to produce an object of desired shape. A. Forging B. Casting C. Blanking D. Shearing Answer: B 5. To cut out,bend or form with a stamp or die. A. Extrusion B. Hammer Forging C. Drawing D. Stamping Answer: D 6.A process using dies and punches to simultaneously reduce the diameter and extend the length of a cup-shaped metal part. Used for both cartridge cases and bullet jackets. A. Extrusion B. Hammer Forging C. Drawing D. Stamping Answer: C 7. The process of forming the interior and/or exterior shape of the barrel of a firearm by hammering. A. Extrusion B. Swagging C. Drawing D. Stamping Answer: B 8. The slow forcing of material under high pressure through a die reduce its diameter.This process is generally performed in a hydraulic press.Lead wire used in bullet making is extruded. Impact extrusion can be used to make bullet jackets and cartridge cases. A. Extrusion B. Swagging C. Drawing D. Stamping Answer: A 9. Cutting holes in metal with a twist drill. A. Abrasive machining B. Broaching C. Reaming D. Drilling Answer: D 10.To widen the opening of a hole, Countersink: to enlarge or dress out a hole with a reamer, to enlarge the bore of a gun. A. Abrasive machining B. Broaching C. Reaming D. Drilling Answer: C 11.Finishing surfaces by drawing or pushing a cutter called a broach entirely over and past the surface. A broach has a series of cutting teeth arranged in a row or rows, graduated in height from the teeth that cut first to those that cut last. A. Abrasive machining B. Broaching C. Reaming D. Drilling Answer: B 12.The use o abrasives rather than high-speed steel or tungsten carbide cutting tools. A. Abrasive machining B. Broaching C. Reaming D. Drilling Answer: A 13. Metal-cutting machining in which the work piece is firmly attached to a horizontal table that moves back and forth under a single-point cutting tool. The tool-holding device is mounted on a cross-rail so that the tool can be fed (moved) across the table in small, discrete, side-ward movements at the end of each pass of the table. A. Planing B. Boring C. Milling D. Turning Answer: A 14. Producing smooth and accurate holes in a work piece by enlarging existing holes with a bore, which may bear a single cutting tip of steel, cemented carbide, or diamond or may be a small grinding wheel. A. Planing B. Boring C. Milling D. Turning Answer: B 15. Cutting metal by feeding against a rotating cutting tool called a milling cutter; milling machines cut flat surfaces, grooves, shoulders, inclined surfaces, dovetails, and T-slots. Various form-tooth cutters are used for cutting concave forms and convex grooves, for rounding corners, and for cutting gear teeth. A. Planing B. Boring C. Milling D. Turning Answer: C 16.Turning operations involve cutting excess metal, in the form of chips, from the external diameter of a work piece and include turning straight or tapered cylindrical shapes, grooves, shoulders, and screw threads, and facing flat surfaces on the ends of cylindrical parts. A. Planing B. Boring C. Milling D. Turning Answer: D 17.Shaping and planing operations involve the machining of flat surfaces, grooves, shoulders, T-slots, and angular surfaces with single-point tools. A. Planing B. Boring C. Milling D. Shaping Answer: D 18. “Ballista” is a gigantic bow or catapult which was used to hurl large objects such as stones at a particular distance to deter animals or enemy forces. A. Catapult B. Balle C. Ballein D. Ballista Answer: D 19. Ballistics is the scientific study of the _______ and motion of projectiles such as bullets, artillery shells, rockets and guided missiles. A. Propulsion B. Expulsion C. Repulsion D. Extraction Answer: A 20. The British engineer Benjamin Robins conducted many experiments in interior ballistics. His findings justly entitle him to be called the A. father of modern gunnery B. father of modern ballistics C. father of interior ballistics D. father of forensic ballistics Answer: A Questioned Documents: Next Page Related Readings: Forensic Ballistics 1. Questioned Document Definition of Terms 2. Forensic Chemistry Definition of Terms |
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