NPLQ Knowledge 2

Question 1

What is the recommended free chlorine level range for a public swimming pool according to standard guidelines?

Accepted Answer

1.0–3.0 mg/L

Answer

Public pools should maintain free chlorine between 1.0 and 3.0 mg/L to effectively sanitize without causing irritation.

Question 2

A lifeguard witnesses a patron slip and hit their head on the pool deck and become unconscious. What is the FIRST action to take?

Accepted Answer

Call for assistance and activate the emergency action plan

Answer

Activating the EAP ensures additional help is summoned before individual interventions begin.

Question 3

Which term describes the point at which a swimmer loses the ability to keep their airway above the water surface?

Accepted Answer

Aquatic distress

Answer

Aquatic distress is the phase where a swimmer struggles to maintain their airway and needs immediate assistance.

Question 4

When conducting a head-spine-victim rescue in the water, how many rescuers are ideally needed to perform a safe log roll onto a backboard?

Accepted Answer

3

Answer

Three rescuers are the recommended minimum — one stabilizing the head, one rolling the body, and one managing the backboard.

Question 5

What does a pool's 'turnover rate' refer to?

Accepted Answer

The time taken for the entire pool volume to pass through the filtration system once

Answer

Turnover rate is the time required to filter the total pool volume once, indicating filtration efficiency.

(NPLQ) National Pool Lifeguard Qualification Practice Test