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Questions and Answers
State FIVE indications that a fault has occurred in a centrifugal pump/motor set.
State FIVE indications that a fault has occurred in a centrifugal pump/motor set.
- Abnormal noise 2. Vibration 3. High temperature 4. Leakage 5. Low pressure
State a possible cause of each of the faults mentioned in the previous question.
State a possible cause of each of the faults mentioned in the previous question.
- Misalignment 2. Imbalance 3. Overloading 4. Seal failure 5. Blockage
Explain how a relief valve suitable for use on the air side of a compressor is reset after overhaul.
Explain how a relief valve suitable for use on the air side of a compressor is reset after overhaul.
The relief valve is reset by adjusting the spring tension to the specified pressure according to manufacturer's instructions.
Describe a pressure reducing valve suitable for supplying control air from the main starting air supply.
Describe a pressure reducing valve suitable for supplying control air from the main starting air supply.
Describe THREE types of wastage that may occur on the internal surfaces of a ship's side valve made of modular cast iron.
Describe THREE types of wastage that may occur on the internal surfaces of a ship's side valve made of modular cast iron.
Sketch a relief valve suitable for use on the air side of a compressor.
Sketch a relief valve suitable for use on the air side of a compressor.
Sketch a pressure reducing valve suitable for supplying control air from the main starting air supply.
Sketch a pressure reducing valve suitable for supplying control air from the main starting air supply.
Where should refrigerant gas bottles be stored?
Where should refrigerant gas bottles be stored?
What is the weakest part of a storage bottle for refrigerant?
What is the weakest part of a storage bottle for refrigerant?
How can it be determined if refrigerant has been leaking from gas bottles?
How can it be determined if refrigerant has been leaking from gas bottles?
State the TWO methods of recharging a refrigeration system and where the connection to the system should be made for EACH method.
State the TWO methods of recharging a refrigeration system and where the connection to the system should be made for EACH method.
How should excessive refrigerant be removed from the system without infringing MARPOL regulations?
How should excessive refrigerant be removed from the system without infringing MARPOL regulations?
Explain the meaning of '100% redundancy' in steering gears.
Explain the meaning of '100% redundancy' in steering gears.
What is 'single failure criteria' in steering gears?
What is 'single failure criteria' in steering gears?
Describe a pilgrim nut and its usage in ensuring correct fitting of a keyless propeller.
Describe a pilgrim nut and its usage in ensuring correct fitting of a keyless propeller.
Describe the construction of a salient pole a.c. generator rotor.
Describe the construction of a salient pole a.c. generator rotor.
How many poles would be required for a 50Hz supply and a rotational speed of 750rpm in an a.c. generator?
How many poles would be required for a 50Hz supply and a rotational speed of 750rpm in an a.c. generator?
What are the requirements for an internal light fitting in battery lockers?
What are the requirements for an internal light fitting in battery lockers?
Why are the requirements for an internal light fitting in battery lockers necessary?
Why are the requirements for an internal light fitting in battery lockers necessary?
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Study Notes
Small Vessel Second Engineer 060-03 - Auxiliary Equipment Part I
- The examination is administered by the Scottish Qualifications Authority on behalf of the Maritime and Coastguard Agency.
- The examination is 2 hours long, from 1400-1600 hrs.
- Non-programmable calculators are permitted, and all formulae used must be stated with clear working and intermediate steps.
Auxiliary Equipment
- Types of wastage that can occur on the internal surfaces of a ship's side valve made of modular cast iron:
- Three types of wastage
- Centrifugal Pump/Motor Set:
- Five indications of a fault:
- Possible cause of each fault
- Relief Valve:
- Sketch of a relief valve suitable for use on the air side of a compressor
- Explanation of how the valve is reset after overhaul
- Pressure Reducing Valve:
- Description with a sketch of a pressure reducing valve suitable for supplying control air from the main starting air supply
Refrigeration System
- Safe storage and handling of refrigerant:
- Storage location of refrigerant gas bottles
- Weakest part of the storage bottle
- How to determine if refrigerant has been leaking from gas bottles
- Two methods of recharging a refrigeration system, including connection points
- How to remove excessive refrigerant from the system without infringing MARPOL regulations
Steering Gears
- Definition of:
- 100% redundancy
- Single failure criteria
Propeller and Thrust Bearing
- Description with a sketch of a pilgrim nut
- Explanation of how the pilgrim nut is used to ensure correct fitting of a keyless propeller
- Inspection of a main thrust bearing
Salient Pole A.C. Generator Rotor
- Description of the construction of a salient pole a.c. generator rotor
- Calculation of the number of poles required for a 50Hz supply, rotational speed of 750rpm
Battery Lockers
- Requirements for an internal light fitting
- Explanation of why the requirements are necessary
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