VERSION MOST TESTED QUESTIONS AND VERIFIED
ANSWERS GRADED A+ | WITH RATIONALES
1. What is the most common cause of diver emergencies?
A. Equipment failure
B. Poor judgment
C. Strong currents
D. Marine life encounters
Answer: B. Poor judgment
Rationale: Poor judgment is the leading cause of diver emergencies, as it often leads to risky decisions,
such as diving beyond one’s training or ignoring safety protocols.
2. Before attempting an in-water rescue, which of the following should you assess? (Select all that
apply)
A. Do you need to enter the water at all?
B. Are you properly trained and equipped?
C. Can you accomplish the rescue without putting yourself in danger?
D. Is the victim conscious?
Answer: A, B, C
Rationale: Assessing whether you need to enter the water, your training and equipment, and your
ability to rescue safely are critical to ensuring both your safety and the victim’s.
3. Which of the following are effects of stress on a diver? (Select all that apply)
A. Temporary strength increase
B. Faster thinking
C. Perceptual narrowing
D. Reduced thinking
Answer: A, C, D
Rationale: Stress can cause temporary strength increases, perceptual narrowing (tunnel vision), and
reduced thinking. Faster thinking is not typically associated with stress.
,4. True or False: The only benefit of a pocket mask is that it decreases disease transmission risk.
A. True
B. False
Answer: B. False
Rationale: A pocket mask also provides a secure seal for effective rescue breathing and can deliver
oxygen if connected to an oxygen system.
5. Which of the following are characteristics of a non-resuscitator demand valve oxygen system?
(Select all that apply)
A. Oxygen flows only when the patient inhales
B. Delivers nearly 100% oxygen
C. Used only on a breathing patient
D. Wastes more oxygen
Answer: A, B, C
Rationale: A non-resuscitator demand valve system delivers oxygen only when the patient inhales,
provides nearly 100% oxygen, and is used only on breathing patients. It does not waste oxygen.
6. Which of the following are characteristics of a continuous flow oxygen system? (Select all that
apply)
A. Wastes more oxygen
B. May be used with a non-breathing patient
C. May be used with a patient who has difficulty breathing
D. Oxygen flows only when the patient inhales
Answer: A, B, C
Rationale: Continuous flow systems waste more oxygen but can be used with non-breathing patients or
those with breathing difficulties. Oxygen flows continuously, not just during inhalation.
7. What is the correct order of steps for emergency management?
A. Assess situation, delegate, act on plan, attend to injuries, control scene, arrange evacuation
B. Assess situation, act on plan, delegate, attend to injuries, control scene, arrange evacuation
C. Act on plan, assess situation, delegate, attend to injuries, control scene, arrange evacuation
D. Assess situation, act on plan, attend to injuries, delegate, control scene, arrange evacuation
, Answer: B. Assess situation, act on plan, delegate, attend to injuries, control scene, arrange
evacuation
Rationale: Proper emergency management begins with assessing the situation, followed by acting on a
plan, delegating tasks, attending to injuries, controlling the scene, and arranging evacuation.
8. Which skills increase your self-rescue abilities? (Select all that apply)
A. Good buoyancy control
B. Airway control
C. Cramp control
D. Handling air depletion
Answer: A, B, C, D
Rationale: All these skills are essential for self-rescue, as they help divers manage emergencies like
buoyancy issues, airway control, cramps, and air depletion.
9. What should your first response be during any emergency situation?
A. Act immediately
B. Stop, think, and act
C. Delegate tasks
D. Call for help
Answer: B. Stop, think, and act
Rationale: Stopping to assess the situation, thinking through the options, and then acting ensures a calm
and effective response.
10. Which of the following are characteristics of a tired diver? (Select all that apply)
A. Signals for help
B. Responds to directions
C. Rejects equipment
D. Assists with rescuer’s efforts
Answer: A, B, D
Rationale: A tired diver typically signals for help, responds to directions, and assists with rescue efforts.
Rejecting equipment is more characteristic of a panicked diver.
11. Which of the following are characteristics of a panicked diver? (Select all that apply)