Dive Theory Practice Quiz for PADI IDC and IE
- 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
 
 - 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
 
 - 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
 
 - Which of the following is a symptom of decompression sickness? 
- A) Increased thirst
 - B) Joint pain
 - C) Frequent urination
 - D) Improved vision
 
 - 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
 
 - 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
 
 - 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
 
 - 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
 
 - 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
 
 - 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
 
 
