Forensic Science Semester Exam Test

Adipocere typically takes about _____ weeks to develop.

12

How many ballistic evidence images has the National Integrated Ballistics and information Network captured?

2.8 million

A pathologist would expect rigor mortis to disappear after _____ hours

36

What percentage of the population is positive for the Rh factor in their blood?

85%

Which can be used in making identification of a deceased individual?

A) fingerprinting B) facial reconstruction C) dental examination

Which of the following is a confirmatory test used to reveal the presence of blood with high accuracy?

ABACard

Which of the following can also be used to describe red blood cells?

Erythrocytes

According to the segment, approximately how many red blood cells are in one milliliter of blood?

Five million

Which of the following is a common presumptive test used to detect the presence of blood?

Kastle-Meyer test

If a person lacks A and B proteins in their red blood cells, which of the following is their blood type?

O

Satellite Spatter

Small droplets of blood that are distributed around a drop or pool of blood as a result of the blood impacting the surface.

Which of the following types of bullets are typically used in target practice to punch neat holes in the paper?

Wadcutter

Medium Velocity Impact Spatter

a bloodstain pattern caused by a medium force

Impact Spatter

a bloodstain pattern produced when an object makes forceful contact with a source of blood, projecting drops of blood outward from the source.

Tetrahydracannabinol (THC)

active drug found in marijuana

Fresh blood should be allowed to.... before being analyzed

air dry

Hallucinogens

alter perceptions, thoughts and moods

Acute angle

an angle that measures less than 90 degrees

Void Pattern

an area within a spatter pattern which is clear of spatter; caused by an object or person blocking the area at the time of the pattern's deposition

External Force

application of an outside force

Forensic Toxicology

application of toxicology to cases which involve law or criminal investigation

Which of the following is defined as a metal tube which the ammunition travels through prior to exiting the gun?

barrel

Drawback Effect

blood in the barrel of a firearm that has been drawn backward into the muzzle

Forward Spatter

blood that travels in the same direction as the source of energy or force that caused the spatter

Backward Spatter

blood which is directed back towards the source of the force which caused the spatter

Passive Bloodstains

bloodstain drop created or formed solely under the control of gravity

Transfer Bloodstains

bloodstain pattern created when an object covered in blood comes into contact with an object not covered in blood

Pool Patterns

bloodstain patterns created when blood is collected on a level and undisturbed surface

Trail Patterns

bloodstain patterns formed by the dripping of blood off a moving surface or person in a recognizable pathway separate from other patterns

Secondary Strains

bloodstains which result from primary stains

A body that displays a cherry-red discoloration might lead a pathologist to suspect poisoning by:

carbon monoxide

Death at a fire scene is most often attributed to:

carbon monoxide?

Which is the following is analyzed for extraction and ejection markings?

cartridge casings

Depressants

cause a slow heart and respiratory rate

Blood is medically referred to as which of the following those of tissues?

circulating tissue

Blood typing is classified as which of the following types of evidence?

class evidence

Agglutination is also known as which if the following?

clotting

Amphetamine

commonly known as methamphetamine, can include intense feelings of pleasure and hyperactivity

Which of the following best describes a fully automatic gun?

continuously releases bullets in one trigger pull until the trigger is released.

Which of the following is analyzed to determine the distance between the muzzle and the target?

distribution of powder patterns

Narcotics

drugs which numb pain and produce sleep

Which of the following consists of both burned and unburned particles from the explosive primer?

gunshot residue

Defense wounds are most typically seen on the:

hands

Presumptive tests detect the presence of which of the following to provide a positive result for the presence of blod?

hemoglobin

Forensic Chemist

individual responsible for identifying unknown, non-biological trace evidence and analyzing substances found at a crime scene

Which of the following refers to ammunition behavior from the time it has been ignited to the point at which it exits the firearm?

interior ballistics

Luminol reacts with which of the following to allow blood or other bodily fluids to be detected?

iron in hemoglobin

Chromotography

is a method used to separate compounds

A sharp force injury will most likely come from a:

knife, blade, or glass piece.

According to the segmdnt, which of the following elements are found in gunpowder?

lead, barium, and antimony

Presumptive Test

limits the identification possibilities and can help analysts make a more informed choice on how to analyze a substance more thoroughly

Lethal dose

measurement of the toxicity of a substance

What must a medical examiner possess?

medical degree

Marijuana

most commonly used hallucinogen

Trajectory

path followed by projected blood moving under the action of force

Bloodstains

patterns made by blood being dispersed

Which of the following holds bullets in a magazine which is inserted into the handle of the gun

pistol

Which of the following is clarified as a liquid blood component?

plasma

Time of death can be approximated by analyzing the vitreous humor and the levels of:

potassium

Absorption

process of a chemical entering the body and getting into the bloodstream

Expirate

process of releasing air from the lungs through the nose or the mouth

Phencyclidine (PCP)

produces feelings of strength, detachment, and irritability.

Injection

requires a substance to be directly inserted into the bloodstream

Which should be performed first at a death scene?

secure the scene

Which of the following is not used to analyze entrance and exit wounds?

sketching the wound

Which of the following types of bullets is intended to expand upon striking its target to cause damage with a diameter greater than the bullet djameter?

soft-point

Characteristic markings on the skin caused from the discharge of a firearm is known as:

stippling or tattooing

Partially digested or dissolved pills can be seen in the:

stomach

Methadone

synthetic opioid which was developed to help addicts overcome heroin addictions

Which of the following best describes terminal ballistics?

the behavior of a bullet once it strikes the target and the effect it has on the target

Which of the following best describes the stock of a gun?

the support of the gun when it is braced against an individual's body.

According to the segment, what is a downfall of utilizing presumptive tests?

they can produce false-positive results

Which of the following can also be used to detect describe platelets?

thromcocytes

Legal purpose of ketamine

veterinary drug

Physical Depedence

withdrawal where user may become ill if they stop taking a substance