IDC Guide

PADI IDC and IE Quiz 7: Practise Your Dive Theory Knowledge

Dive Theory Practice Quiz for PADI IDC and IE

  1. What is the primary purpose of the Recreational Dive Planner (RDP)?
    • A) To plan dive sites
    • B) To calculate surface intervals
    • C) To track underwater wildlife
    • D) To manage dive time and depth to avoid decompression sickness
  2. According to Boyle’s Law, what happens to a diver’s air spaces as they descend?
    • A) They expand
    • B) They stay the same
    • C) They contract
    • D) They oscillate
  3. What is the most significant contributing factor to nitrogen narcosis?
    • A) The depth of the dive
    • B) The duration of the dive
    • C) The temperature of the water
    • D) The diver’s experience level
  4. Which of the following is a symptom of decompression sickness?
    • A) Increased thirst
    • B) Joint pain
    • C) Frequent urination
    • D) Improved vision
  5. What does the acronym BCD stand for in scuba diving?
    • A) Buoyancy Control Device
    • B) Breathing Compression Device
    • C) Basic Conservation Directive
    • D) Balanced Cylinder Deployment
  6. In the PADI system, what is the minimum age for obtaining the Open Water Diver certification?
    • A) 10 years
    • B) 12 years
    • C) 15 years
    • D) 18 years
  7. What is the primary function of a regulator in scuba diving?
    • A) To filter water
    • B) To control buoyancy
    • C) To measure depth
    • D) To deliver air at the correct pressure
  8. Which gas law explains why divers need to exhale when ascending?
    • A) Charles’ Law
    • B) Dalton’s Law
    • C) Boyle’s Law
    • D) Henry’s Law
  9. What is the recommended action if a diver experiences symptoms of hypothermia underwater?
    • A) Continue the dive but avoid exertion
    • B) Ascend immediately without a safety stop
    • C) Signal the buddy, terminate the dive, and seek warmth
    • D) Increase swimming speed to generate body heat
  10. What is the primary reason for conducting a safety stop during ascent?
    • A) To check for marine life
    • B) To adjust the diving gear
    • C) To allow gases to safely off-gas from tissues
    • D) To prepare for the next dive

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