Submarine Qualifications – Questionair One

1What is a hard tank? Soft tank?

  1. What shape is an athwartships cross-section of the pressure hull? Why is the pressure hull so shaped?
  2. Sketch the hull showing all tanks and compartments. Indicate which tanks are hard.
  3. Sketch the fuel filling and compensating water systems.
  4. What is the purpose of the Expansion tank? Collecting tank? Negative tank? Safety tank? Bow Buoyancy tank?
  5. Why is it necessary to keep the fuel tanks vented?
  6. What is the danger of diving the ship with no fuel tank on service? Explain.
  7. Describe how the hydraulic system is involved in the following evolutions:
  1. Diving
  2. Surfacing
  3. Snorkeling
  4. Mooring and anchoring
  1. What are the major functions of the following?
  1. High pressure air system
  2. Main ballast tank blow system
  3. Low pressure blow system
  4. Ship’s service air system
  5. Salvage air system
  1. Sketch the snorkel piping. Discuss the snorkel safety devices.
  2. What type of engines does the PERCH have?
  3. What type of main xx and motors are on the PERCH?
  4. What type of batteries xx are on the PERCH? What can you tell from the gravity?
  5. What safety precautions xx observed during a battery charge?
  6. List the location of the motor-generator sets.
  7. Describe the steps necessary to control the following casualties. Your description should include:
  1. Reports made to whom and why.
  2. Local action taken by man on sc…xx .
  3. Reasons for such action.
  4. Possible cause(s):

(1)Loss of lube oil pressure to engines.

(2)Electrical fire.

(3)Loss of Auxiliary power.

(4)Loss of AC power.

(5)Chlorine in battery wells.

(6)Atomic attack.

(7)#1 sanitary over-flowing.

  1. List all sound-powered phone circuits. Describe the functions of each.
  2. Describe the function of the noise level monitor and cavitation indicator. Give location of hydrophones.
  3. What are the conditions of quiet set on PERCH. Briefly describe each.
  4. Discuss PERCH’s capability to transmit and receive radio communications while submerged.
  5. Name and define the various security classifications.
  6. List the operational command between Commanding Officer PERCH and CNO.
  7. What are the proper fog signals for PERCH when underway and at anchor? When are they required?
  8. Draw trim and drain system. Label valves open on rig for dive. List valves open on rig for surface.
  9. List steps in changing of Fuel ballast tank from a fuel tank to a ballast tank.
  10. List procedures step by step for taking on fuel.
  11. What would you do if you knew an abnormal condition existed such as having to pump engine room bilges every hour?
  12. What is the policy about breaking water tight integrity of the ship (ie running lines through hatches, etc.)?
  1. Where are the keys kept to the following items:
  1. Magazine.
  2. Small arms locker.
  3. Hydraulic manifold.
  1. List damage control equipment on ship giving use and location.
  2. How would you isolate, electrically, the following?
  1. Forward battery.
  2. Forward troop space.
  3. Maneuvering room.
  4. HP air compressors.
  1. How would you tell if the air conditioning units are operating properly?
  2. List action you would take if in charge of 10 men in the forward troop space and you had to make an escape. List step by step procedure, include the escape.
  3. Where and how can you trip out the batteries? Where and how can the circuit breakers be reset?
  4. What is the ship’s:
  1. Length.
  2. Depth (test)
  3. Draft.
  4. Beam.
  5. Displacement (surface and submerged).
  6. Fuel oil capacity.
  7. Lube oil capacity.
  8. Fresh water capacity.
  9. Steaming radius (How many miles at standard speed on one engine can we go?).
  1. How many CO2 bottles, CO2 absorbent canisters, and oxygen candles do we carry?
  2. What range can we expect to pick up a contact on radar, sonar JT passive, sonar BQS-2 active and passive?
  3. How many rubber boats and outboard motors does PERCH carry?
  4. List the tanks which have emergency vents – name type and reason why it has that type.
  5. How do the following flood valves seat and why?
  1. Negative.
  2. Safety.
  3. Fuel ballast #5.
  1. Explain where and how you can get into the following tanks, if more than one place, so state.
  1. Negative
  2. Safety.
  3. Forward trim.
  4. Fresh water #1, #3, #5.
  5. Normal Fuel Oil #3
  1. List items you would check as a below decks watch stander.
  2. What is ship’s call sign (voice and CW)?
  3. Draw a sketch of the following tanks – include all fittings.
  1. Collecting and Expansion.
  2. FBT #5.
  3. MBT #2

45. What is the capacity of the stills (distillers) and what type do we have?