Question 1

Which of the following aspect of forensic investigations portrayed on television is unrealistic?

Accepted Answer

A) The forensic investigator carefully surveys the crime scene and collects evidence in plastic bags 
B) DNA profiles are analyzed within a few minutes and match a suspect 
C) Fingerprints are taken from door knobs using a black powder and sticky tape 
D) All of these choices are correct 
A) The forensic investigator carefully surveys the crime scene and collects evidence in plastic bags 
B) DNA profiles are analyzed within a few minutes and match a suspect 
C) Fingerprints are taken from door knobs using a black powder and sticky tape 
D) All of these choices are correct B

Question 2

It has been proven that eating or drinking at a crime scene will not comprise evidence.

Accepted Answer

A) True 
 B)False  False

Question 3

High concentrations of mercury are discovered in a lab fire.Which of the objects below is not a possible source for this contamination?

Accepted Answer

A) Thermometers 
B) Lightbulbs 
C) Alkaline batteries 
D) All of these choices are correct 
A) Thermometers 
B) Lightbulbs 
C) Alkaline batteries 
D) All of these choices are correct C

Question 4

The field of forensics is only applicable to criminal investigations.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following instruments are most useful for the identification of fire accelerants?

Accepted Answer

A) Infrared spectroscopy 
B) UV-Visible spectroscopy 
C) Nuclear magnetic resonance spectroscopy 
D) None of these choices are correct 
A) Infrared spectroscopy 
B) UV-Visible spectroscopy 
C) Nuclear magnetic resonance spectroscopy 
D) None of these choices are correct

Question 6

Upon mixing,which of the following would represent a homogeneous solution?

Accepted Answer

A) Sugar and water 
B) Sand and water 
C) Charcoal and water 
D) All of these choices are correct 
A) Sugar and water 
B) Sand and water 
C) Charcoal and water 
D) All of these choices are correct

Question 7

What is the lower flammability limit (LFL)?

Accepted Answer

A) The lowest concentration of solvent vapor that can ignite in air 
B) The lowest temperature that will ignite solvent vapor in air 
C) The lowest atmospheric pressure that is needed to ignite solvent vapor in air 
D) None of these choices are correct 
A) The lowest concentration of solvent vapor that can ignite in air 
B) The lowest temperature that will ignite solvent vapor in air 
C) The lowest atmospheric pressure that is needed to ignite solvent vapor in air 
D) None of these choices are correct

Question 8

What is flashover?

Accepted Answer

A) Any condition when a fire has been initiated 
B) When the majority of exposed surfaces are heated to above their autoignition temperatures 
C) When the majority of exposed surfaces are heated to above their boiling points 
D) When the majority of exposed surfaces are heated to above their flash points 
A) Any condition when a fire has been initiated 
B) When the majority of exposed surfaces are heated to above their autoignition temperatures 
C) When the majority of exposed surfaces are heated to above their boiling points 
D) When the majority of exposed surfaces are heated to above their flash points

Question 9

Electrophoresis uses ________________ to separate fragments of DNA.

Accepted Answer

A) varying pressures 
B) filtration 
C) an electrical field 
D) a magnetic field 
A) varying pressures 
B) filtration 
C) an electrical field 
D) a magnetic field

Question 10

Which type of fire extinguisher is most appropriate to extinguish an electrical fire?

Accepted Answer

A) Carbon dioxide 
B) Dry-powder such as graphite 
C) Water 
D) Wet-chemical such as aqueous potassium carbonate 
A) Carbon dioxide 
B) Dry-powder such as graphite 
C) Water 
D) Wet-chemical such as aqueous potassium carbonate

Question 11

What is the material used for the majority of automobile headlight lenses?

Accepted Answer

A) Glass 
B) Polycarbonate plastic 
C) Polyacrylate plastic 
D) Polyethylene plastic 
A) Glass 
B) Polycarbonate plastic 
C) Polyacrylate plastic 
D) Polyethylene plastic

Question 12

The first police officer to arrive at a crime scene is called the

Accepted Answer

A) primary officer. 
B) first responder. 
C) inspector. 
D) emergency technician. 
A) primary officer. 
B) first responder. 
C) inspector. 
D) emergency technician.

Question 13

Which of the following is one of the three R's of forensic investigations?

Accepted Answer

A) Reduce 
B) Reuse 
C) Recover 
D) Recycle 
A) Reduce 
B) Reuse 
C) Recover 
D) Recycle

Question 14

Most arson fires are started with

Accepted Answer

A) an oxidizing agent. 
B) highly unsaturated oils. 
C) petroleum-based fuels. 
D) lead-based paints. 
A) an oxidizing agent. 
B) highly unsaturated oils. 
C) petroleum-based fuels. 
D) lead-based paints.

Question 15

DNA is not easily obtained from

Accepted Answer

A) saliva. 
B) blood. 
C) sweat. 
D) fingerprints. 
A) saliva. 
B) blood. 
C) sweat. 
D) fingerprints.

Question 16

A chemical process in which heat is evolved is called

Accepted Answer

A) endothermic. 
B) exothermic. 
C) endergonic. 
D) combustion. 
A) endothermic. 
B) exothermic. 
C) endergonic. 
D) combustion.

Question 17

The image obtained from scanning electron microscopy (SEM) results from

Accepted Answer

A) electrons passing through the sample that reach a detector. 
B) electrons that are blocked from reaching a detector through contact with sample atoms. 
C) secondary electrons ejected from sample atoms through interaction with an electron beam. 
D) All of these choices are correct 
A) electrons passing through the sample that reach a detector. 
B) electrons that are blocked from reaching a detector through contact with sample atoms. 
C) secondary electrons ejected from sample atoms through interaction with an electron beam. 
D) All of these choices are correct

Question 18

Isotopic analysis can be also used for climate change in which respect?

Accepted Answer

A) Determine the current concentration of CO2 in the atmosphere 
B) Determine past air temperatures 
C) Determine the past concentration of CO2 in the atmosphere 
D) Determine past air temperatures and the past concentration of CO2 in the atmosphere 
A) Determine the current concentration of CO2 in the atmosphere 
B) Determine past air temperatures 
C) Determine the past concentration of CO2 in the atmosphere 
D) Determine past air temperatures and the past concentration of CO2 in the atmosphere

Question 19

The arson investigation team is trained to pay particular attention to

Accepted Answer

A) the cost of damage to the building. 
B) the time of day the fire has occurred. 
C) suspicious burn patterns on floors and/or walls. 
D) All of these choices are correct 
A) the cost of damage to the building. 
B) the time of day the fire has occurred. 
C) suspicious burn patterns on floors and/or walls. 
D) All of these choices are correct

Question 20

Glass that is strengthened by using rapid heating and cooling is referred to as

Accepted Answer

A) Pyrex glass. 
B) laminated glass. 
C) low-E glass. 
D) tempered glass. 
A) Pyrex glass. 
B) laminated glass. 
C) low-E glass. 
D) tempered glass.

Which of the following aspect of forensic investigations portrayed on television is unrealistic?

It has been proven that eating or drinking at a crime scene will not comprise evidence.

High concentrations of mercury are discovered in a lab fire.Which of the objects below is not a possible source for this contamination?

The field of forensics is only applicable to criminal investigations.

Which of the following instruments are most useful for the identification of fire accelerants?

Upon mixing,which of the following would represent a homogeneous solution?

What is the lower flammability limit (LFL)?

What is flashover?

Electrophoresis uses ________________ to separate fragments of DNA.

Which type of fire extinguisher is most appropriate to extinguish an electrical fire?

What is the material used for the majority of automobile headlight lenses?

The first police officer to arrive at a crime scene is called the

Which of the following is one of the three R's of forensic investigations?

Most arson fires are started with

DNA is not easily obtained from

A chemical process in which heat is evolved is called

The image obtained from scanning electron microscopy (SEM) results from

Isotopic analysis can be also used for climate change in which respect?

The arson investigation team is trained to pay particular attention to

Glass that is strengthened by using rapid heating and cooling is referred to as

Portable Electronics: the Periodic Table in the Palm of Your Hand

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Health Medicine

Genes and Life

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Exam 14: Who Killed Drthompson a Forensic Mystery

Which of the following aspect of forensic investigations portrayed on television is unrealistic?

It has been proven that eating or drinking at a crime scene will not comprise evidence.

High concentrations of mercury are discovered in a lab fire.Which of the objects below is not a possible source for this contamination?

The field of forensics is only applicable to criminal investigations.

Which of the following instruments are most useful for the identification of fire accelerants?

Upon mixing,which of the following would represent a homogeneous solution?

What is the lower flammability limit (LFL)?

What is flashover?

Electrophoresis uses ________________ to separate fragments of DNA.

Which type of fire extinguisher is most appropriate to extinguish an electrical fire?

What is the material used for the majority of automobile headlight lenses?

The first police officer to arrive at a crime scene is called the

Which of the following is one of the three R's of forensic investigations?

Most arson fires are started with

DNA is not easily obtained from

A chemical process in which heat is evolved is called

The image obtained from scanning electron microscopy (SEM) results from

Isotopic analysis can be also used for climate change in which respect?

The arson investigation team is trained to pay particular attention to

Glass that is strengthened by using rapid heating and cooling is referred to as

Portable Electronics: the Periodic Table in the Palm of Your Hand

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Health Medicine

Genes and Life

Filters