FCTC Firefighter Mathematical Problems 5 β Questions and Answers
Question 1: A fire hose delivers water at 150 gallons per minute. How many gallons are delivered in 2 hours and 15 minutes?
- 18,750 gallons
- 20,250 gallons (Correct answer)
- 16,500 gallons
- 22,500 gallons
Correct answer: 20,250 gallons
2 hours 15 minutes = 135 minutes; 135 Γ 150 = 20,250 gallons.
Question 2: A ladder is placed against a building with its base 8 feet from the wall and reaches a height of 15 feet. What is the length of the ladder?
- 16 feet
- 17 feet (Correct answer)
- 18 feet
- 19 feet
Correct answer: 17 feet
Using the Pythagorean theorem: β(8Β² + 15Β²) = β(64 + 225) = β289 = 17 feet.
Question 3: A fire station receives 12 alarms on Monday, 9 on Tuesday, 15 on Wednesday, 6 on Thursday, and 18 on Friday. What is the average number of alarms per day?
- 10 alarms
- 11 alarms
- 12 alarms (Correct answer)
- 13 alarms
Correct answer: 12 alarms
(12 + 9 + 15 + 6 + 18) Γ· 5 = 60 Γ· 5 = 12 alarms per day.
Question 4: A chemical foam concentrate is mixed at a 3% ratio. How many gallons of concentrate are needed to make 400 gallons of finished foam solution?
- 8 gallons
- 10 gallons
- 12 gallons (Correct answer)
- 14 gallons
Correct answer: 12 gallons
400 Γ 0.03 = 12 gallons of concentrate.
Question 5: A building floor plan measures 120 feet by 85 feet. What is the total square footage?
- 9,600 sq ft
- 9,800 sq ft
- 10,200 sq ft (Correct answer)
- 10,400 sq ft
Correct answer: 10,200 sq ft
120 Γ 85 = 10,200 square feet.
Question 6: A firefighter earns $22.50 per hour and works a 56-hour week. She receives 1.5Γ overtime pay for all hours over 40. What is her total gross pay for the week?
- $1,170.00
- $1,260.00
- $1,350.00
- $1,440.00 (Correct answer)
Correct answer: $1,440.00
Regular pay: 40 Γ $22.50 = $900; Overtime: 16 Γ $33.75 = $540; Total = $900 + $540 = $1,440.
Question 7: A tanker truck holds 3,500 gallons of water. A pumper is drafting from it at 500 gallons per minute while also supplying a hose line at 250 gallons per minute. How many minutes before the tanker is empty?
- 4.7 minutes (Correct answer)
- 5.0 minutes
- 6.2 minutes
- 7.0 minutes
Correct answer: 4.7 minutes
Total flow = 500 + 250 = 750 gpm; 3,500 Γ· 750 β 4.67 minutes.
A fire hose delivers water at 150 gallons per minute.
How many gallons are delivered in 2 hours and 15 minutes?