FST 215 Chapter 4 Review Questions
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Micah Villa
Case Study Questions
You and your crew are dispatched to investigate a smoke detector that activated in an elevator lobby on the fourth floor of a recently
constructed high-rise building. Upon arrival, it is determined the alarm is accidental, so the system is reset. However, before you depart, you and the crew are stopped by building occupants who live on the 7th, 10th, and 14th floors. They are concerned that they
either barely heard or did not hear the alarm; the only way they found out something was going on was by looking out of their windows and seeing the fire trucks. In addition, they had to use the stairs to leave their floors because the elevators never came. How would you answer the following questions from the occupants?
1. Why was the alarm barely audible or not heard at all on the 7th, 10th, and 14th floors of the building?
A. That is just the way the fire alarm system works.
B. The fire alarm system needs its volume turned up.
C. The fire alarm system is broken and needs repairing.
D. It is typical for the alarm in a modern high-rise building to only sound on the floor of origin, the floor above origin, and the floor below origin.
2. Why would fire alarms—but no voice instructions—have been heard on every floor in the much older high-rise buildings where some of the occupants previously resided?
A. Unlike today’s modern high-rise buildings, most—if not all—high-rise buildings built before the mid-1980s only sounded a general alarm throughout the building; emergency voice alarm communication systems were not required when these buildings were constructed.
B. There must have been something wrong with the system, because only certain floors should have sounded an alarm.
C. There must have been something wrong with the system, because voice instructions should have been heard along with the
alarm.
D. That part of the fire alarm system must have needed its volume turned up.
3. Why did the elevators fail to come to the floor when the call button was pushed?
A. The elevators must be broken and need to be repaired.
B. Once an alarm activates, the elevators travel to the first floor or, if the alarm originates on the first floor, to an alternative floor so fire fighters can use them to investigate the alarm.
C. Once an alarm activates, the elevators shut down so nobody can use them.
D. Once the building alarm activates, the elevators stop at the closest floor and stay until reset by the fire department.
4. What should the occupants do if the alarms are not heard but the fire trucks can be seen and heard arriving at the building?
A. Occupants should not do anything. If they are in danger, the fire department will save them.
B. Occupants should find a manual station and pull it to sound the alarm. They should then go back into their unit and wait for instructions from the fire department.
C. Occupants should leave the building.
D. Unless occupants feel they are in danger, they should wait for instructions from the fire department. The fire department will provide information and instruction through the emergency voice alarm communications system.
B. Challenging Questions
1. What factors and conditions associated with the use and occupancy of a building determine the requirements to install manual fire
alarm and detection systems?
Occupancy, building height, manufacturing, number of occupants
2. What occupancies require installation of emergency voice alarm communication systems?
high rise buildings, amusement buildings, and large occupant loads
3. Where does the initial fire alarm signal sound in a modern high-rise building?
It sounds on the original floor, and the one above/ below the original floor
4. Explain the purpose and the features of a fire command center.
It’s a protected zone first responders can use as a central hub for fire operations
5. List and explain the differences between the four types of residential fire alarm systems.
single station, multi station, combination system, and household fire alarm system
Micah Villa
6. Explain the importance of interfacing a building fire alarm system with other building systems.
It will provide a variety of control/ management to the buildings systems.
7. List and explain the differences between the different NFPA classifications for fire alarm systems.
The different classifications of the NFPA Standard is Fire alarm systems, The supervising station fire alarm system, the public fire alarm reporting system, one way emergency communication systems, and two way emergency communications systems
8. Why would a certifying authority request the “Record of Completion” before the actual acceptance test of a fire alarm system?
The record of completion holds the contractor responsible
9. What problems are created when a fire alarm system experiences false alarms?
false alarms can give firefighters complacency and undermine the activated alarm when it could actually be something
10. Why is it so important to perform fire alarm system acceptance testing and periodic inspections and tests?
It can lead to unknown problems or failures to the system when its needed most.
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QUESTION 14
Match the following accordingly
v First law of thermodynamics
A. helps to detect the violation of the second law of
thermodynamics.
Second law of thermodynamics
B. Consider the direction, quality and quantity.
c. helps to detect the violation of the first law of
thermodynamics.
D. accounts for energy conservation in a process
E. violates the first law of thermodynamics
F. does not violate the first law of thermodynamics
A cup of coffe left to cool in a cooler room
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Question 45 is based on the following picture.
Reprinted with permission from Popular Science magazine,
©2000, Times Mirror Magazines, Inc.
45. Stuart Wilkinson, the engineer of "Chew-
Chew" said, "we stole the idea of eating
food from the biological world, but we are
marrying that idea to useful robotic
capabilities." Which of the following
would not be an application of Stuart
Wilkinson's theory?
A. A leaf mulcher that feeds on foliage
B. a trash compactor that feeds on
garbage
dos C. a lawn mower that feeds on grass
bos
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https://www.sciencedirect.com/science/article/abs/pii/S0965997822001569
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Assignment 1: Killer Robot
Summary of the case: Bart Matthews, a robot operator at Cybernetics, Inc., has been killed by an out-
of-control robot named Robbie. The creator of the robot, Silicon Technologies, is also in a tight
financial position and had hoped that the robot would put the company back on its feet. It has been
determined that several situations contributed to the death of Matthews:
1. Improper methodology was used in developing the software.
2. Testing of the software was faked.
3. The company pressured Robbie's creators to by-pass testing.
4. Part of the software used in the robot was stolen from another vendor's application.
5. The programmer did not understand or know the code which he used.
6. Security measures used were illegal, and therefore all information gathered in regard to the case
might not be permissible in court.
7. The project leader did not understand or use proper design methodologies.
8. The end-user interface was designed improperly.
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https://pubmed.ncbi.nlm.nih.gov/32521345/
In the literature review, they should present the system installed and the main results obtained. In other words, the enhancement due to the installed system. They have to define the system used in this study. (the report talking about ventilation) pls in briefly
Don’t using chatgpt please urgent
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APPLICATIONS OF FIRST ORDER DIFFERENTIAL EQUATIONS
Newton’s Law of Cooling and Joint Proportions
At 4:00pm, a thermometer reading of 28 deg C is taken outside where the ambient temperature is –11 deg C. At 4:05 pm, the thermometer reads 8 deg above zero. After a while, the thermometer is returned to the room maintained at 28 deg C. At 4:12pm, the thermometer reads 15 deg C. When was the thermometer returned to the room?
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to see what will happen to
3. Safety engineers use
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4. Decide whether each of the following statements is true (T) or false (F). Place your
answer in the blank space provided.
a. Restraining features operate continuously while you are driving.
b. Operational features hold vehicle occupants in place.
C. Brakes are an example of a structural feature.
d. Crumple zones are examples of operational features.
e. An air bag is an example of a restraining feature.
of the collision between the
5. Crumple zones increase the
occupants and the interior of the vehicle.
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True or False
1. Inhalation is the most common way for a chemical to enter the body.
2. The first step of caring for a worker suffering from smoke inhalation is to provide the worker with 100% oxygen.
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Multiple Choice
6. Good ventilation is a key component in controlling workers’ exposure to:
A. Airborne pathogens
B. Flammable Vapors
C. Chemicals
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