NFSI Cognitive Abilities 3

Question 1

A ladder truck carries 3 ground ladders: one 14 ft, one 24 ft, and one 35 ft. What is the combined length of all three ladders?

Accepted Answer

73 ft

Answer

14 + 24 + 35 = 73 ft.

Question 2

Which sentence is grammatically correct?

Accepted Answer

The captain, along with his crew, was evacuated.

Answer

'The captain' is the singular subject, so the verb must be 'was,' not 'were.'

Question 3

A tanker holds 2,500 gallons. A pumper uses water at 300 gallons per minute. How many minutes until the tanker is empty?

Accepted Answer

8.3 minutes

Answer

2,500 ÷ 300 ≈ 8.33 minutes.

Question 4

Read: 'Backdraft occurs when a smoldering fire in a oxygen-deprived space receives a sudden inflow of air.' Which action could trigger a backdraft?

Accepted Answer

Opening a closed door to a sealed, smoldering room

Answer

Opening a sealed door introduces oxygen to an oxygen-deprived fire, potentially causing a backdraft.

Question 5

If 4 firefighters can complete a search of a floor in 12 minutes, how long would the same search take with 6 firefighters (assuming equal work distribution)?

Accepted Answer

8 minutes

Answer

Total work = 4 × 12 = 48 person-minutes; 48 ÷ 6 = 8 minutes.

NFSI - National Firefighter Selection Inventory Practice Test

NFSI - National Firefighter Selection Inventory Practice Test

NFSI Cognitive Abilities 3