1.
Which of the following statement in the choices are the foundational techniques in "toolmark identifications"?
2.
What will be the basis of the firearms examiner in establishing the identity of the firearms?
3.
When a cartridge case is fired in a firearm what notable marks are produced?
4.
Discharged evidence bullet should be marked on the base or nose.
5.
This is the depressed portions canal-like structure inside the barrel.
6.
It refers to the distance advance by riflings in one complete run.
7.
Can there be chamber marks when a cartridge had just been drawn from the chamber by pulling the slide of the pistol without firing it?
8.
This is the rear extremity of a firearm, which serves to block [at the rear end] the base of a cartridge such that it would not be loosened when it is fired:
9.
These are indentations created when the firing pin of a firearm strikes the primer of a cartridge case.
10.
Every barrel will not leave its mark known as a “thumb mark or fingerprint” on every bullet that passes through it.
11.
Firing pin marks is an example of what marks?
12.
Striated action marks include the following, what is NOT?
13.
Which of the following should be avoided in marking firearms evidence?
14.
They are found on the cylindrical portion of the fired bullets or slugs and are caused by the riflings inside the barrel.
15.
At the scene of the crime, the picking up of a weapon by its barrel with a pencil or stick in order to protect fingerprints is one that "must be avoided".
16.
When a weapon is recovered from an underwater location, no effort should be made to dry or clean it. Instead, the firearm should be transported to the laboratory in a receptacle containing enough of the same water necessary to keep it submerged. This procedure will prevent rust from developing during the transport.
17.
What is NOT a reason for marking a discovered or collected evidence?
18.
A small instrument sometimes used in examining the internal surface of the gun barrel. It has a tiny lamp at the internal portion and this is inserted inside the bore for internal examinations.
19.
These marks are more or less found on the anterior portion of the fired bullets or slugs and are caused by the forward movement of the build before it rotates as required by riflings and common on a bullet fired at a revolver.
20.
Every barrel leaves its thumb mark on every bullet, which is fired through it, just as every breech-face leaves its thumb mark on the base of the fired cartridge case.
21.
These are indications peculiar to one weapon, which can be seen on the cartridge case and or on the bullet fired from it:
22.
If bullets are found at the crime scene, what are things that need to be noted?
23.
In pistols, the empty shells are found in a cylindrical magazine chamber after the fire, but in cases of revolvers, the empty shells are driven out a weapon after the shot to give way to live cartridge to be in the firing chamber.
24.
Normally, in a cartridge case fired in a pistol, the striated and impressed action marks will be more or less how many?
26.
The protection of class and individual markings on bullets and cartridge cases must be the primary concern of the field investigator who is handling such evidence.
27.
When cartridge cases expand when fired pressing out against the walls of the chamber, what marks are produced?
28.
Which of the choices are principles in shell identifications?
29.
The clothing of a firearm victim must be carefully preserved so as to prevent damage or disruption to powder residues deposited around a bullet or shotshell hole.
30.
This is the process of barrel production, creating a rough hole of uniform diameter on the selected metal, thus producing several scars and scratches on its interior surface that becomes permanent.
31.
Are generally found on bullets or slugs through loose fit" barrels wherein the rifling's are badly worn out.
32.
Which of the following terms do NOT fall under the category of striated marks from where the word striated action marks come from?
33.
Caliper is used to measure what?
34.
What is the most prominent impression marks found on a fired shell?
35.
What part of the firearms must be marked by the investigator?
