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J.B learning Fire Investigator Final Exam Study guide Questions And Answers

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J.B learning Fire Investigator Final Exam Study guide Questions And Answers \Q\.NFPA 921 is designed to produce a(n) __________ framework to ensure an effective fire investigation and cause analysis. A. Encompassing B. Hypothetical C. Systematic D. Purposeful - ANSWERS✔-C. \Q\.Which of the following is it considered a failure analysis tool? A. Timelines B.egress analysis C.photographey D.hydraulic analysis - ANSWERS✔-C. \Q\.The process in which something is heated, causing the material to decay and produce fire gases, is known as: - ANSWERS✔-Pyrolysis \Q\.Which type of explosion has a combustion reaction at slower than the speed of sound? Select one: A. Combustion explosion B. Detonation C. Chemical explosion • D. Deflagration v Chapter 16; Page 392; NFPA 1033: 4.2.9 - ANSWERS✔-Deflagration \Q\.The life of a fire is recorded at the scene in the form of: - ANSWERS✔-Fire patterns \Q\.Which of the following appliances is susceptible to fires caused by lint coming in contact with the heating element? a. Ceiling fan in a bathroom or kitchen b. Hair dryer c. Clothes dryer d. Refrigerator - ANSWERS✔-Clothes dryer \Q\.Which of the following is an important part in testing the hypothesis of a investigation? - ANSWERS✔-Identifying the first fuel ignition \Q\.Once an investigator has obtained permission from the incident commander to enter a fire scene, the next thing the investigator should do is: - ANSWERS✔-Develop a safety plan \Q\.During a joint fire investigation, who should be responsible for protecting and controlling evidence? - ANSWERS✔-An evidence custodian \Q\.Which of the following is not a circuit protection device? - ANSWERS✔-Current blocker \Q\.Which of the following is a technique for taking a sample of a possible ignitable liquid residue off the surface of suppression water? - ANSWERS✔-Use a sterile cotton gauze pad and skim the surface of the water \Q\.Which of the following is not an important standard or source that an investigator should understand when dealing with fuel gas systems that are found in residences or commercial occupancies? - ANSWERS✔-29 CFR Part 311, EPA Standard for Natural Gas and Residential and Commercial Use \Q\.If a fire cause is classified as undetermined, which of the following is true? - ANSWERS✔-Responsibility for some aspects of the fire may still be attributed. \Q\.____________ is about assigning responsibility, reporting, or gathering statistics. - ANSWERS✔-Classification \Q\.Wet, dry, and deluge are the four categories of. - ANSWERS✔-Water based sprinkler systems \Q\.When does the contamination of physical evidence most often occur? - ANSWERS✔-During fire-ground suppression activities \Q\.All of the following are indicators that an appliance caused the fire being investigated, except: - ANSWERS✔-carbon buildup on the conductors in or near the appliance. \Q\.The observable or measurable changes in or on a material as a result of exposure to fire are known as: - ANSWERS✔-Fire effects \Q\.Depletion of oxygen below __________ results in impairment of motor and mental skills and can be fatal to occupants. - ANSWERS✔-15 percent \Q\.Which of the following chemicals can be found at every fire scene and is a known carcinogen? - ANSWERS✔-Benzene

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