Mixed Deck — All CPS Topics Flashcards

Read the following passage and answer the question below. 'Firefighter safety and health are critical components of a successful fire department. Standard Operating Procedure (SOP) 45.1 outlines the requirements for personal protective equipment (PPE) during all structural firefighting operations. This includes, but is not limited to, a helmet, hood, coat, trousers, boots, gloves, and a self-contained breathing apparatus (SCBA). The Incident Commander (IC) is ultimately responsible for ensuring all personnel adhere to this SOP. However, it is the individual responsibility of each firefighter to inspect their PPE before each shift and report any deficiencies to their immediate supervisor, who is typically the Company Officer.' According to SOP 45.1, who holds the primary responsibility for the pre-shift inspection of personal protective equipment?

Answer: Each individual firefighter

The passage explicitly states, '...it is the individual responsibility of each firefighter to inspect their PPE before each shift...'. While the IC has overall responsibility for SOP adherence and the Company Officer receives reports of deficiencies, the initial inspection duty lies with the individual firefighter.

A department bulletin states: 'Breathing apparatus inspections are required before every shift. Any SCBA showing a pressure reading below 90% must be tagged out of service immediately.' Firefighter Reyes checks her SCBA and finds it reads 88%. What should she do?

Answer: Tag the SCBA out of service immediately.

The bulletin clearly states any SCBA below 90% must be tagged out of service immediately — no exceptions are listed.

Read the following passage and answer the question that follows. 'Firefighter training manuals emphasize that the 'Two-In, Two-Out' policy is a critical safety procedure. This rule requires that at least two firefighters enter an Immediately Dangerous to Life or Health (IDLH) atmosphere together and remain in visual or voice contact with one another at all times. Additionally, at least two firefighters must remain outside the IDLH atmosphere, fully equipped and ready to rescue the interior team should an emergency arise. This outside team is often referred to as the Rapid Intervention Team (RIT). The policy is a direct result of analyses of firefighter fatalities where single firefighters became lost, disoriented, or incapacitated inside a hazardous environment.' Based on the passage, what is the primary purpose of the 'Two-In, Two-Out' policy?

Answer: To enhance firefighter safety and provide a dedicated rescue capability in hazardous environments.

The passage explicitly states the policy is a 'critical safety procedure' and that the outside team is 'ready to rescue the interior team.' It links the policy's origin to preventing firefighter fatalities in hazardous environments, directly supporting the idea of enhanced safety and rescue capability.

What is the average of 12, 18, 24, and 30?

Answer: 21

The sum is 84, divided by 4 equals 21.

Hydraulic rescue tools, such as the 'Jaws of Life,' are capable of generating immense force to cut through metal and spread crushed vehicle frames. This technology is a direct application of which scientific principle?

Answer: Pascal's Principle

Pascal's Principle states that pressure applied to a confined, incompressible fluid is transmitted equally throughout the fluid. Hydraulic tools use a pump to apply pressure to a small volume of fluid, which then acts on a larger piston, multiplying the force significantly.

A radio call states: 'Three firefighters are on the roof, two are in the basement, and one is at the command post.' How many firefighters are on the roof?

Answer: Three

Three firefighters are on the roof.

A fire truck tank holds 500 gallons. After fighting a fire, 340 gallons remain. What percentage of the tank was used?

Answer: 32%

(500 − 340) ÷ 500 × 100 = 160 ÷ 500 × 100 = 32%.

During the incipient (early) stage of a fire, what is the primary characteristic?

Answer: Heat, smoke, and flame production are minimal and the fire is still small

The incipient stage is the earliest phase where the fire is small, heat output is low, and there is limited smoke production — the best stage for suppression.

A bill of $80 includes a 10% tip. What is the total amount paid?

Answer: $88

10% of 80 is 8, and 80 plus 8 equals 88.

A fire crew lays out 450 feet of a 2.5-inch hose. If the friction loss for this type of hose is 10 PSI per 100 feet, what is the total friction loss for the entire length of the hose?

Answer: 45.0 PSI

First, determine how many 100-foot sections are in the total length: 450 feet / 100 feet = 4.5 sections. Then, multiply the number of sections by the friction loss per section: 4.5 * 10 PSI = 45.0 PSI total friction loss.

According to safety guidelines, the base of a 28-foot ladder should be placed approximately one-quarter of its working length from the building. Which of the following is the correct distance?

Answer: 7 feet

To find the correct distance, divide the ladder's length by 4. Calculation: 28 feet / 4 = 7 feet. The base of the ladder should be 7 feet from the building.

An officer says: 'Evacuate buildings A and C immediately, but building B is clear.' Which building does NOT need evacuation?

Answer: Building B

Building B was reported as clear.

Call: 'Move the apparatus 50 feet back, away from the power lines.' Which direction relative to the lines?

Answer: Away from the power lines

The apparatus is moved 50 feet away from the power lines.

Which fire class involves fires in ordinary combustible materials such as wood, paper, and cloth?

Answer: Class A

Class A fires involve ordinary combustibles like wood, paper, cloth, rubber, and many plastics, which are the most common fire type encountered.

Instructions: 'Victims on the second floor are priority; first-floor victims are stable.' Who should be rescued first?

Answer: Second-floor victims

Second-floor victims are the stated priority because first-floor victims are stable.

A hydraulic jack used to lift a vehicle has a small input piston with an area of 2 in² and a large output piston with an area of 20 in². If 50 lb of force is applied to the input piston, the output force is:

Answer: 500 lb

Pascal's Law states that pressure is equal throughout the fluid, so output force = input force × (output area / input area) = 50 × (20/2) = 500 lb.

A briefing states three engines, two ladder trucks, and one ambulance were dispatched. How many total apparatus responded?

Answer: Six

Three plus two plus one equals six apparatus.

A passage reads: 'At 09:45, Battalion Chief Rivera assumed command at the scene of a warehouse fire at 2200 Industrial Parkway. Mutual aid was requested from Station 12.' Who assumed command at the scene?

Answer: Battalion Chief Rivera

The passage states Battalion Chief Rivera assumed command at the warehouse fire scene.

A briefing lists the response timeline: alarm at 2:15, arrival at 2:23, fire controlled at 2:40. At what time was the fire controlled?

Answer: 2:40

The fire was controlled at 2:40.

A firefighter reviews a log showing: 'Unit left station at 08:00, arrived on scene at 08:09, cleared scene at 09:15.' How long was the unit on scene?

Answer: 66 minutes

From 08:09 arrival to 09:15 clearance is 1 hour and 6 minutes, totaling 66 minutes on scene.