FREE AND STUDY GAMES ABOUT FF 1 CHAPTER 13 EXAM

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FREE AND STUDY GAMES ABOUT FF 1 CHAPTER 13 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -88 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: 167. To perform hydraulic ventilation, a fog nozzle should be set on a wide fog pattern to cover what percent of the opening through which the smoke will be drawn or pulled?

• 15 to 20
• 45 to 50
• 55 to 60
• 85 to 90

Answer:

• 85 to 90

Question 2: Recirculation

Answer:

Movement of smoke being blown out only to be drawn back into the building.

Question 3: 141. Velocity, turbulence, and direction are indicators of:

• flame.
• smoke.
• air flow.
• air pressure.

Answer:

• air flow.

Question 4: 176. What type of cut is used to create a fire break that stops the spread of fire in common attic structures or large structures?

• Trench cut
• Vertical cut
• Exhaust cut
• Offensive cut

Answer:

• Trench cut

Question 5: Vertical Ventilation

Answer:

Ventilating at a point above the fire through and existing or created openings channeling contaminated atmosphere vertically through a structure. (skylight, roof vents, roof doors)

Question 6: Blowers

Answer:

Fans used to push fresh air into a structure Question 7: 135. Tactical ventilation reduces fire damage in structures and limits water damage

because it:

• focuses on the use of foam to fight interior fires.

• allows for the use of fire streams with lower pressures.
• increases speed with which interior fires can be extinguished.
• allows salvage operations to begin simultaneously with fire attack.

Answer:

• increases speed with which interior fires can be extinguished.

Question 8: 132. Incident stabilization means:

• reducing interior temperatures.
• increasing oxygen concentration.
• controlling and extinguishing the fire in stages.
• increasing the number of smoke-free paths of egress.

Answer:

• controlling and extinguishing the fire in stages.

Question 9: 8. For vertical ventilation to be effective, a horizontal inlet opening at or below the

level of the fire is needed to provide a flow path for: (742)

• flames to exit the structure.
• for smoke to enter the structure.
• for fresh air to exit the structure.
• for fresh air to enter the structure.

Answer:

• for fresh air to enter the structure.

Question 10: 151. Which of the following weather conditions has the most influence on ventilation operations?

• Wind
• Precipitation

• Temperature
• Atmospheric pressure

Answer:

• Wind

Question 11: 186. What do modern buildings have built-in that can contribute to the spread of smoke and toxic gases throughout a structure?

• HVAC systems
• Exhaust systems
• Automatic systems
• Smoke control systems

Answer:

• HVAC systems

Question 12: Hydraulic Ventilation

Answer:

Ventilation by using a spray stream to draw smoke from as compartment through an exterior opening Question 13: 185. Which of the following should be indicated by a smoke control system control panel?

• What initiated the fire
• Who activated the alarm
• Where the alarm originated
• When the system will turn off

Answer:

• Where the alarm originated