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
