name at least two possible sources of ignition:. match electrical sparks chemical
TRANSCRIPT
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Name at least two possible sources of ignition:
Question:
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MatchElectricalSparksChemical
Answer
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A Forensic Document Examiner must have a license. T or F
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False
Answer
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Once adulthood is reached, an individual’s handwriting generally will not change with age. T or F?
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False
Answer
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True or False – Writings on a charred document may be revealed by reflecting light off the paper’s surface at different angles.
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True
Answer
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How are gas residues best characterized by?
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Gas Chromatography
Answer
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True or False – Accelerants are usually consumed completely in a fire.
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False
Answer
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The chemical reaction that occurs during a fire is called _________________.
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Oxidation
Answer
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In terms of energy conservation, what type of reaction is “fire”?
Questoin
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Exothermic
Answer
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How is evidence at an arson crime scene collected?
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In an airtight container such as a paint can. There should be space left at the top for air.
Answer
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Margins, spacing and crowding are all different types of ____________ habits.
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Personal
Answer
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What is pyrolysis?
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Pyrolsis occurs when an organic solid is hot enough to decompose into gaseous products.
Answer
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How long does it take for a body to be cremated? At what temperature?
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Two hours at 1600 degrees Fahrenheit.
Answer
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What is the difference between a graphologist and a forensic document examiner?
Question
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A graphologist attempts to predict character traits of handwriting while a forensic document examiner identifies the authorship and origin of the document.
Answer
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What are the components of black powder?
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75% potassium nitrate15% charcoal10% sulfur
Answer
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The minimum temperature at which liquid fuel produces enough vapor to burn is called the fuel’s ________________________.
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Flash point
Answer
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What are the three components needed for a fire to burn?
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FuelOxygenHeat
Answer
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When is the best time to start an arson investigation?
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Right after the fire has been extinguished.
Answer
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Describe the behavior of fire.
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It moves up and away from its origin.
Answer
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Is a warrant needed to search a crime scene after a fire?
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No
Answer
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Although spontaneous combustion is rare for humans, it has been known to occur in remote villages located near the equator. True or False?
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False, no one has ever witnessed a human spontaneous combustion.
Answer
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Minimum temperature to spontaneously ignite fuel is known as ___________.
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Ignition temperature.
Answer
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Fuel will achieve a reaction rate with oxygen sufficient to produce a flam only when it is in the ______________ state.
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Gaseous
Answer
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What type of behavior is handwriting?
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Projected.
Answer
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Handwriting can not predict behavior – true or false?
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True, it can show correlation between personality and handwriting, but can not predict behavior.
Answer
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What method physically separates mixtures of gases, liquids and dissolved salts?
Question
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Gas chromatography
Answer
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Spalling is only left by an accelerant being poured and then ignited. True or Fasle?
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False
Answer
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Can the conscious handwriting of two individuals be identical? Yes or No
Question
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Yes! – only the UN-conscious handwriting of two individuals CAN NOT be identical.
Answer
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What type of explosive is insensitive to heat, shock or friction and will normally burn rather than detonate if ignited in small quantities in the open air?
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Secondary explosives
Answer
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What must an examiner be able to recognize that is an attempt to change the original meaning of a document?
Question
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Erasures and Overwriting
Answer
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Who investigates cyber crimes?
Question
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A Computer Crime Analyst
Answer
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What is the number (or value) that represents how fast a compound travels in a particular solvent?
Questions
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The retention factor or Rf value
Answers
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True or False?Fraud investigation is the verification of age and value of a document or object.
Question
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False, fraud investigation is used to determine the authenticity of a document, not how much it is worth.
Answer
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Which of the following is NOT a questioned document?a. Lettersb. Checksc. Bumper Stickersd. Wills
Question
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Bumper Stickers
Answer
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Name at least one of the two different methods of writing.
Question
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Palmer Method or Zonet-Blosser
Answer
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True or False- Oxidations are chemical reactions that give off heat.
Question
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True
Answer