Forensic Ballistics Reviewer 7
1.A collection and cataloging of test-fired bullets and cartridge cases from known firearms. A.Classifying B. Bullet comparison C. Known standards D. Collected standards 2.The number, width, and direction of twist of the rifling grooves in a barrel of a given caliber firearm. A. General Rifling Characteristics B. Gross forming C. Groove diameter D.Intercomparison 3.A discipline of forensic science which has as its primary concern to determine if a bullet, cartridge case, or other ammunition component was fired by a particular firearm. A. Ballistic examination B. Firearms identification C. Ballistics D. Toolmark identification 4.A discipline of forensic science which has as its primary concern to determine if a toolmark was produced by a particular tool. A. Ballistic examination B. Firearms identification C. Forensic Ballistics D. Toolmark identification 5. Contour variations, generally microscopic, on the surface of an object caused by a combination of force and motion where the motion is approximately parallel to the plane being marked. A. Striations B. Class characteristics C. Sub-class characteristics D.toolmarks 6. Discernible surface features of an object which are more restrictive than class characteristics. A.Striations B. Class characteristics C. Sub-class characteristics D. Toolmarks 7. Measurable features of a specimen which indicate a restricted group source. They result from design factors, and are therefore determined prior to manufacture. A. Striations B. Class characteristics C. Sub-class charateristics D. Toolmarks 8. Marks produced by the random imperfections or irregularities of tool surfaces. These random imperfections or irregularities are produced incidental to manufacture and/or caused by use, corrosion, or damage. A. Individual characteristics B. Class characteristics C. Sub-class characteristics D. Toolmarks 9.Striae or patterns of minute lines or grooves in an object. In firearm and toolmark identification these marks are characteristic of the object which produced them and are the basis for identification. A. Individual characteristics B.Toolmarks C. Microscopic marks D. Class characteristics 10.The process of determining whether or not the details of striated marks or impressions on two objects correspond, such as fired and unfired cartridge cases and shot-shell cases. A. Pattern matching B. Land and Groove identification C. Pattern Identification D. Toolmark identification Remember the ff: Forensic Ballistics 1. Known standards - A collection and cataloging of test-fired bullets and cartridge cases from known firearms. Also known as Fired standards. 2. General Rifling Characteristics - the number,width, and direction of twist of the rifling grooves in a barrel of a given caliber firearm. 3. Firearms identification - A discipline of forensic science which has as its primary concern to determine if a bullet, cartridge case, or other ammunition component was fired by a particular firearm. 4. Toolmark identification - A discipline of forensic science which has as its primary concern to determine if a toolmark was produced by a particular tool. 5. Striations - Contour variations, generally microscopic, on the surface of an object caused by a combination of force and motion where the motion is approximately parallel to the plane being marked. 6. Subclass characteristics - Discernible surface features of an object which are more restrictive than class characteristics. 7. Class characteristics - Measurable features of a specimen which indicate a restricted group source. They result from design factors, and are therefore determined prior to manufacture. 8. Individual characteristics - Marks produced by the random imperfections or irregularities of tool surfaces.These random imperfections or irregularities are produced incidental to manufacture and/or caused by use, corrosion, or damage. 9. Microscopic marks - Striae or patterns of minute lines or grooves in an object. In firearm and toolmark identification these marks are characteristic of the object which produced them and are the basis for identification. 10.Pattern matching - The process of determining whether or not the details of striated marks or impressions on two objects correspond,such as fired and unfired cartridge cases and shot-shell cases. Answers: Forensic Ballistics
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