PADI Instructor Exams –
Past PADI IE Exam Paper 2023
Instructor Development Course – IDC Standards Mock Exam C
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1.”Fail safe” in reference to modern scuba regulator means:
A. the regulator is so reliable, it is nearly impossible that it can fail
B. the regulator will shut down if a diver exceeds safe limits
C. all known instances of failure have not caused an accident
D. None of the above
Answer: D
Explanation:
Modern regulators are designed to free flow during a malfunction, which gives the regulator a fail-safe design. It will fail in a safe manner opening of air and continues to provide air until the tank is empty. Obviously the tank will lose air fast, so the diver must make an immediate ascent or take air provided from another air source.
2.AK valve is:
A. a simple on-off valve
B. a valve with a reserve mechanism
C. a valve that takes a yoke screw design regulator
D. none of the above
Answer: A
3. You might hydrostatically test a cylinder before its due date if:
A. it suffers damage due to impact
B. it requires tumbling or sandblasting to remove corrosion
C. it is left for more than two years with zero pressure
D. all of the above
Answer: D
4.An upstream valve is one that may open with or against the flow of air, depending on the design.
A. True
B. False
Answer: B
5. When a scuba regulator’s first stage is balanced it:
A. provides greater airflow and breathes easier at greater depths.
B. is more capable of supplying air to accessories, such as low pressure inflators.
C. is better able to supply the needs of two divers breathing simultaneously from the regulator.
D. all of the above are correct.
Answer: D
6. The first stage of a modern scuba regulator will most likely have either a(n).______ or _____ valve.
A. upstream/pilot
B. downstream/flutter
C. piston/diaphragm
D. downstream/pilot
Answer: C
7.When diving in extremely cold water, a regulator that has a(n) may be protected from freezing up.
A. environmentally sealed first stage
B. closed circuit design
C. fail safe design
D. downstream valve
Answer: A
8.One corrosive element that might form if water gets inside a steel tank is aluminum oxide.
A. True
B. False
Answer: B
9. Aluminum cylinders typically have thicker walls than steel tanks.
A. True
B. False
Answer: A
10.Wearing gauges on the wrist:
A. is the oldest of the instrument carrying options
B. speeds up dive preparation
C. combines several gauges in one package
D. keeps arms clear to ease equipment donning
Answer: A
11.Downstream or pilot valves are most likely found in the __________ of a scuba regulator
A. high pressure ports
B. first stage
C. first and second stages
D. second stage
Answer: D
12.Depending what country you are in, tank markings might be a slightly different. However, generally you find the same types of markings on a tank. Of the following. which marking would you not see?
A. the name of the manufacturer
B. a tank serial number and manufacturer’s designation
C. the tanks working pressure
D. all of the above
Answer: B
13. At the surface, a diver breathes a complete cylinder of air in 70 minutes. At 25 meters,
it would take 20 minutes to breathe that same whole cylinder.
A. True
B. False
Answer: A
14. Approximately how much denser is the air a diver breathes at a depth of 40 metres / 132 feet as compared to the surface?
A. 2 times as Dense
B. 4 times as dense
C. Density doesn’t change
D. 5 Times as Dense
Answer: D
15. What would the volume at the surface be if a flexible, air-filled container with a volume of 14 liters at 31 meters / 101.525 feet is released to the surface?
Answer: 57.4
16. If you take a scuba cylinder and a balloon and fill them with air, and then place them outside in very cold weather, what effect will there be for each?
A. The cylinder pressure will increase and the balloon volume will decrease
B. The volume of the cylinder and the balloon will increase.
C. The pressure of the cylinder and the balloon will decrease.
D. The cylinder pressure will decrease and the balloon volume will decrease
Answer: D
17.What is the partial pressure of nitrogren at an altitude of 3000 meters/10,000 feet where the ambient pressure is 0.7 atm/10 psi?
A. 0.14 atm/2 psi
B. 0.24 atm/4 psi
C. 0.56 atm/8 psi
D. 0.21 atm/3 psi
Answer: C
18.A 425 kilogram / 937 pound cement block lies in 17 metres / 56 feet of fresh water. The block displaces 222 litres/7.8 cubic feet of water. To move the block off the bottom, what is the minimum amount of water that must be displaced from a lifting device?
A. 203 litres / 7.17 cubic feet
B. 191 litres / 6.75 cubic feet
C. 262.6 litres / 9.75 cubic feet
D. 561.3 litres / 18.75 cubic feet
Answer: A
Explanation:
The object is in fresh water. (425-222 = 203)
19. What happens if you raise the pressure of a gas in contact with a liquid?
A. The gas dissolves into the liquid
B. The liquid dissolves into the gas
C. Bubbles may form
D. The liquid dissipates
Answer: A
20. If you are in the Ocean, the Ambient (Absolute) Pressure in 19 meters is 1.8 atm/bar.
A. True
B. False
Answer: B
Explanation: 2.9 atm/bar
21.If approved, a Standards waiver is good for 1 month.
A. True
B. False
Answer: B
Explanation:
Found in the General Standards and Procedures under Waivers from PADI standards.
22. An Open Water Diver student is required to secure approval from a physician when:
A. the student enrolls in the course.
B. the student is under 18 years old.
C. the student answered “yes” to any question on the medical history RSTC medical Statement.
D. All of the above
Answer: C
Explanation:
Found in the Instructor’s Manual under General Standards and Procedures under Paperwork – Diving Fitness.
23.Confined Open Water is typically described as swimming pool like conditions, regarding depth, calmness and clarity.
A. True
B. False
Answer: A
Explanation:
General Standards and Procedures
24. How long does an Instructor have to send the PIC to the appropriate PADI Office?
A. 14 days
B. 1 year
C. 30 days
D. 7 days
Answer: D
Explanation:
Found in the Instructor’s Manual under General Standards and Procedures under Paperwork and Administrative Procedures.
25.A student who is training to become a Divemaster can lead, under the indirect supervision of an instructor, Open Water Students on the tour portion of Dives 2, 3 and 4.
A. True
B. False
Answer: B
Explanation:
In order to lead Open Water Students on the tour portion of Dives 2, 3 and 4, you need to be an Active status Divemaster, not a Divemaster in training.
Found in the Instructor’s Manual under Professional Membership under Divemaster Duties.
26. The problem with using an integrated instructional system is that it doesn’t provide you flexibility in accommodating learning styles.
A. True
B. False
Answer: B
Explanation:
This is one of the advantages to an integrated instructional system.
Found in the Guide to Teaching under Philosophy and Approach under Performance Based Learning under Performance Flexibility.
27.In the Rescue Diver course, there is no single one way to perform a rescue.
A. True
B. False
Answer: A
Explanation:
The Rescue Diver course focuses on the idea that there is rarely only one way to accomplish a task.
Found in the Guide to Teaching under the Rescue Diver Course.
28. Since 1970, diver certifications have _____ whie diving related injuries have _________
A. Decreased / increased
B. Increased / remain unchanged
C. Remain unchanged / decreased
D. Increased / decreased
Answer: D
29.PADI’s Mission is:
A. to teach the world to scuba dive.
B. to develop programs that encourage the public interest in scuba diving.
C. to train as many divers to become scuba instructors.
D. to be the leader in educational development of scuba divers.
Answer: A
Explanation:
Found in the Guide to Teaching under Mission Statement under Mission.
30.Certification can be withheld when there is a personal dispute with the student.
A. True
B. False
Answer: B
Explanation:
Do not withhold a certification as a means of settling personal disputes.
Found in the Instructor’s Manual under General Standards and Procedures under Paperwork and Administrative Procedures.
31.In order to allow for greater flexibility and for time constraints, performance requirements for any 2 adventure dives may be combined into one dive.
A. True
B. False
Answer: B
Explanation:
Do not combine the performance requirements for twoor more dives into one Adventure Dive.
Found in the Instructor’s Manual under Adventures in Diving under Open Water/General Open Water Considerations.
32. Non-diving specialty certifications may be earned by PADI Scuba Divers.
A. True
B. False
Answer: A
Explanation:
Nondiving Specialties like Project Aware can be earned by certified and noncertified divers.
33. There is no minimum age requirement to participate in the Discover Snorkeling program.
A. True
B. False
Answer: A
Explanation:
Found in the Instructor’s Manual under Discover Snorkeling.
34. According to PADI’s Code of Practice is okay to cancel a dive for students in order to keep the divers safe.
A. True
B. False
Answer: A Explanation:
Found in the Instructor’s Manual under Professional Membership under Code of Practice.
35. The minimum age requirement to participate in the Discover Snorkeling program is 10.
A. True
B. False
Answer: B
Explanation:
There is no minimum age requirement to participate in the Discover Snorkeling program. Found in the Instructor’s Manual under Discover Snorkeling.
36. As part of the Open Water Diver course, students must perform a Tired Diver Tow of a buddy for at least 50 meters/yards.
A. True
B. False
Answer: B
Explanation:
The Tired Diver Tow requires a tow of 25 meters/yards. Found in the Instructor’s Manual under the Open Water Diver course under Open Water Dive Flexible Skills.
37.In the Discover Scuba Diving program, an instructor may conduct the skills on a descent line at a ratio of 2:1 at dive sites where shallow water is not available.
A. True
B. False
Answer: B
Explanation:
The ratio is 1:1 on the descent line.
Found in the Instructor’s Manual under the Discover Scuba Diving program under Skill Performance Requirements under Confined Water.
38. To participate in the Sidemount Adventure Dive, you must be at least _______ years old
A. 10
B. 13
C. 15
D. 12
Answer: C
Explanation:
Found in the Instructor’s Manual under Adventures in Diving under Diver Prerequisites.
39. How long must a student demonstrate he can hover in the Peak Performance Buoyancy specialty?
A. 20 seconds
B. 2 mintues
C. 1 minute
D. 30 seconds
Answer: C
Explanation:
Found in the Instructor’s Manual under the Adventures in Diving program under Peak Performance Buoyancy.
40. Which programs can a Divemaster independently certify or conduct?
A. Skin Diver
B. Discover Local Diving
C. Scuba Review
D. All of the above
Answer: D
Explanation:
Can be found in the Instructor Manual “C Divemaster, Professional Membership “C Professional Ratings
Now you have looked at these questions – really recommend you get all the exams to check / revise from to help you pass your PADI IDC / IE.
The fact you have got to the bottom of the page we will assume you have found this a very valuable and helpful resource for your IDC Revision / Studies, therefore, you will be glad to hear that you can buy the full Exam Pack that includes 10 Standards and Dive Theory Mock PADI exams plus a bonus 75 question Pre-IDC Exam paper with answer keys.
Please click the link and BUY all 3 complete IDC revision packs that includes lots of revision documents and 11 practice mock exams, the exams include all the questions and answers you will need to revise to PASS the PADI IDC