Multiple choice questions

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Try the multiple choice questions below to test your knowledge of Chapter 1. Once you have completed the test, click on 'Submit Answers for Grading' to get your results.

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This activity contains 10 questions.

Which of the following categories of weapon was responsible for the majority of the homicides in England and Wales in which the use of firearms was reported and that the police recorded in the year 2000/2001?

Sawn-off shotgun.Handgun.Air weapons.Long-barelled shotgun.

The term self-loading pistol is strictly synonymous with which one of the following?

Automatic pistol.Semi-automatic pistol.Single-action revolver.Double-action revolver.

Read the following statements and then decide which of the answers is correct.

(i) Cartridges that are designed to be fired in revolvers are all rimmed.

(ii) Cartridges that are designed to be fired in revolvers are all rim-fire.

Statement (i) is true but statement (ii) is false.Both statement (i) and statement (ii) are true.Both statement (i) and statement (ii) are false.Statement (i) is false but statement (ii) is true.

Read the following statements and then decide which of the answers is correct.

(i) Revolvers retain the spent cartridge cases until they are manually removed, whereas self-loading pistols eject the spent case a fraction of a second after the cartridge has been fired.

(ii) Cartridge cases are more likely to be found at a shooting incident involving a self-loading pistol than one in which a revolver was used.

Statement (i) is false but statement (ii) is true.Statement (i) is true but statement (ii) is false.Both statement (i) and statement (ii) are true and statement (i) is the explanation of statement (ii).Both statement (i) and statement (ii) are true but statement (i) is not the explanation of statement (ii).

Among both single-barrel and double-barrel shotguns, 12-bore firearms are the most common. The designation 12-bore means that:

the internal diameter of the gun’s barrel is 1.2 inches.the internal diameter of the gun’s barrel is 12 mm.12 spheres of solid lead each with a diameter equal to the internal diameter of the gun’s barrel weigh one pound.12 spheres of solid lead each with a diameter equal to the internal diameter of the gun’s barrel weigh one-kilogram.

Read the following statements and then decide which of the answers is correct.

(i) In cases involving the discharge of a single bullet from a firearm, damage patterns cannot be used to provide information about the distance from the muzzle to the target.

(ii) In cases of shotgun discharge, the pattern of damage caused by the pellets can be used to provide information about the distance from the muzzle to the target.

Statement (i) is false but statement (ii) is true.Statement (i) is true but statement (ii) is false.Both statement (i) and statement (ii) are false.Both statement (i) and statement (ii) are true.

Consider the following claims:

(i) The firearm accidentally discharged when the spur of the hammer of the gun in an uncocked position was caught on clothing during a scuffle.

(ii) The firearm accidentally discharged when the spur of the hammer of the gun in an uncocked position was hit from behind.

(iii) The firearm accidentally discharged when the cocked gun was dropped onto the floor.

Now decide which one of the answers is an accurate statement.

All of (i), (ii) and (iii) are possible explanations irrespective of the gun involved, and the firearms examiner will not be able to provide information to assist the jury in establishing whether, in the particular case under consideration, each such explanation is credible.None of (i), (ii) and (iii) are possible explanations irrespective of the gun involved.All of (i), (ii) and (iii) are possible explanations irrespective of the gun involved, and the firearms examiner will often be able to provide information to assist the jury in establishing whether, in the particular case under consideration, each such explanation is credible.All of (i), (ii) and (iii) are possible explanations, at least with some guns, and the firearms examiner will often be able to provide information to assist the jury in establishing whether, in the particular case under consideration, each such explanation is credible.

This question relates to the information that can be obtained by the examination of spent cartridge cases and projectiles found at the scene of a shooting incident. To answer it correctly, you may have to choose more than one response.

Which of the following are class characteristics that help to establish the probable type and make, and, in some cases, the model of the gun(s) involved?

The exact relative positions of extractor and ejector marks on the spent cartridge case(s).The pattern of minute parallel striations that make up the mark made by a particular rifling land on bullet(s) recovered from the scene.The twist direction of any rifling marks found on bullet(s) recovered from the scene.The calibre of the spent cartridge case(s).

This question relates to the information that can be obtained by the examination of spent cartridge cases and projectiles found at the scene of a shooting incident.

Which of the following are individualising characteristics that have the potential to establish the identity of the gun(s) involved?

The pattern of minute parallel striations that make up the mark made by a particular rifling land on bullet(s) recovered from the scene.The twist direction of any rifling marks found on bullet(s) recovered from the scene.The exact relative positions of extractor and ejector marks on the spent cartridge case(s).The calibre of the spent cartridge case(s).

Which one of the following is used to analyse for the presence of gunshot residues?

Scanning electron microscopy used in conjunction with energy dispersive X-ray analysis.Polarized light microscopy.Microspectrophotometry.Refractive index measurements.

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