A forensic investigator is trying to determine approximate timing of events after a fire within a hospital basement. A quick response sprinkler (RTI of 50 m^1/2s^1/2), Ordinary Temperature (65 deg C) was within a room (2.1 m high ceiling) that has an initial temperature of 73 deg F and was exposed to a ceiling plume at 205 deg F traveling at 1.3 m/s. Approximately how long should it have taken the sprinkler to activate?
     a. 2 s
     b. 16 s
     c. 33 s
     d. 38 s

Where an industrial application involves some uncertainty and deviation from standard practice and prescriptive code, but is without large uncertainties or extremely challenging applications, which of the following risk assessment approaches would be most appropriate?
a. Layer of protection analysis (FPS-LOPA)
b. Prescriptive standard application
c. Quantitative Risk Assessment (QRA)
d. Human reliability analysis (HRA)

A new healthcare building is being designed with a suite with no sleeping areas and full smoke detection. What is the required construction for the corridor walls?
a. smoke partition only
b. smoke barrier only
c. 1-hour fire resistance and smoke barrier
d. none of the above

Solution | Posted 07/11/19

Solution | Posted 07/10/19

Solution | Posted 07/09/19

​A trench is built to handle overflow of heavy oil from a common garage workspace area to a containment tank. Determine the flame height (in meters) for an open linear fire (130 kW/m) within this trench.
a. 0.44 m
b. 0.87 m
c. 2.2 m
d. 25.7 m

Solution | Posted 07/09/19

Which of the following relationships is best represented by this curve?

​a. time vs. strength of steel with E119 fire test
b. time vs. visibility within a fire compartment
c. time vs. temperature of a standard fire
d. time vs. FED within a fire compartment

Solution | Posted 07/03/19

Who is responsible for coordinating the inspection, testing, and maintenance activities of water-based fire suppression systems?
a. monitoring company
b. owner
c. insurer
d. inspecting contractor

Solution | Posted 07/02/19

Solution | Posted 07/01/19

Solution | Posted 06/28/19

Solution | Posted 06/27/19

Solution | Posted 06/26/19

Solution | Posted 06/25/19

A forensic study is being prepared using a fire model to attempt to verify whether arson could be a cause. If the fire's origin room ceiling ceiling (3.3 m) has an initial temperature of approximately 22 deg C and is exposed to a plume along the ceiling at approximately 85 deg C traveling around 1.2 m/s, what is the activation time (in seconds) for a quick response (RTI of 40), Ordinary Temperature (75 deg C) sprinkler?
     a. 61 s
     b. 67 s
     c. 210 s
     d. 230 s

Solution | Posted 06/24/19

Solution | Posted 06/21/19

​A horizontal split-case electric fire pump is serving a seven story high rise with modifications on the upper level. If the pump is rated for 68 psi at 750 gpm (58 brake hp) and keeps a constant impeller diameter, what will the new brake horsepower be if the speed is increased from 1790 rpm to 1850 rpm?
a. 56 hp
b. 60 hp
c. 62 hp
d. 64 hp

Solution | Posted 06/20/19

​A building addition is to connect two existing buildings of different construction types. Which of the following construction type arrangements is always permissible?
a. Provide the least fire-resistive construction type of the connected portions with no fire barrier separation
b. Provide 1-hour vertically aligned fire barrier wall is installed between them to create separate buildings
c. Provide any construction type for the connection portion with 2-hour fire barrier between buildings
d. none of the above

Solution | Posted 06/19/19

A hospital's patient tower has an an exit access corridor with 1/2 hour partition fire resistance rating on the first level. If the interior architect would like to provide side transoms (narrow windows) along the side of the doors that lead to the exit access corridor, what fire resistance rating must the transoms have?
a. 1/3 hour
b. 1/2 hour
c. 3/4 hour
d. 1-hour

Solution | Posted 06/8/19

Solution | Posted 06/17/19

Solution | Posted 06/14/19

Solution | Posted 06/13/19

Solution | Posted 06/12/19

Solution | Posted 06/11/19