API API-SIRE Exam
Source Inspector Rotating Equipment
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, 1.During a Factory Acceptance Test (FAT) for a centrifugal pump, it was observed that the pump was
vibrating at higher amplitudes than specified. Upon investigation, it was determined that the misalignment
between the motor and the pump was the cause. As a source inspector, what should be your next step to
ensure the issue is resolved properly before acceptance?
A. Recommend stopping the test and ask the vendor to realign the equipment.
B. Document the issue and proceed with the test to analyze other parameters.
C. Request recalibration of the vibration sensors.
D. Approve the equipment as it is, since misalignment is a minor issue.
E. Suggest replacing the motor with a new one immediately.
F. Insist on proceeding with the test to check if the issue resolves itself.
Answer: A
Explanation:
As a source inspector, ensuring the equipment meets the specified performance criteria is crucial.
Misalignment can lead to excessive wear and premature failure, making it imperative to address before
proceeding with further testing. By recommending stopping the test and realigning the equipment, you
ensure the issue is corrected, thus avoiding further complications. Documenting and addressing the
problem also emphasizes the importance of adhering to quality standards and ensures the equipment
operates within acceptable limits.
2.Which of the following strategies is most effective in minimizing erosion in rotating equipment used in
slurry pumping applications?
A. Reducing the slurry concentration
B. Applying thermal insulation to the pump casing
C. Installing vibration dampeners
D. Increasing the rotational speed of the pump
E. Using harder materials for the pump components
F. Increasing the diameter of the impeller
Answer: E
Explanation:
Using harder materials for pump components is a highly effective strategy for minimizing erosion in slurry
pumping applications. Harder materials can better withstand the abrasive action of solid particles in the
slurry, reducing the rate of material loss and extending the lifespan of the components. While other
strategies, such as reducing slurry concentration or changing operational parameters, can also help,
selecting materials with higher hardness and wear resistance provides a direct solution to the problem of
particle-induced erosion. This approach addresses the root cause by enhancing the component's ability to
resist abrasive wear.
3.During a routine inspection closeout for a high-speed turbine, the source inspector notices that one of
the components was replaced with an alternative part not originally specified in the design. This part has a
slightly different specification but is claimed to be equivalent by the supplier. The inspector is required to
document this deviation before finalizing the inspection report.
What is the most appropriate action for the inspector to take to ensure compliance with the API SIRE
guidelines?
A. Document the deviation and proceed without further action.
Source Inspector Rotating Equipment
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35% OFF on All, Including API-SIRE Questions and Answers
Pass API-SIRE Exam with PassQuestion API-SIRE questions and
answers in the first attempt.
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, 1.During a Factory Acceptance Test (FAT) for a centrifugal pump, it was observed that the pump was
vibrating at higher amplitudes than specified. Upon investigation, it was determined that the misalignment
between the motor and the pump was the cause. As a source inspector, what should be your next step to
ensure the issue is resolved properly before acceptance?
A. Recommend stopping the test and ask the vendor to realign the equipment.
B. Document the issue and proceed with the test to analyze other parameters.
C. Request recalibration of the vibration sensors.
D. Approve the equipment as it is, since misalignment is a minor issue.
E. Suggest replacing the motor with a new one immediately.
F. Insist on proceeding with the test to check if the issue resolves itself.
Answer: A
Explanation:
As a source inspector, ensuring the equipment meets the specified performance criteria is crucial.
Misalignment can lead to excessive wear and premature failure, making it imperative to address before
proceeding with further testing. By recommending stopping the test and realigning the equipment, you
ensure the issue is corrected, thus avoiding further complications. Documenting and addressing the
problem also emphasizes the importance of adhering to quality standards and ensures the equipment
operates within acceptable limits.
2.Which of the following strategies is most effective in minimizing erosion in rotating equipment used in
slurry pumping applications?
A. Reducing the slurry concentration
B. Applying thermal insulation to the pump casing
C. Installing vibration dampeners
D. Increasing the rotational speed of the pump
E. Using harder materials for the pump components
F. Increasing the diameter of the impeller
Answer: E
Explanation:
Using harder materials for pump components is a highly effective strategy for minimizing erosion in slurry
pumping applications. Harder materials can better withstand the abrasive action of solid particles in the
slurry, reducing the rate of material loss and extending the lifespan of the components. While other
strategies, such as reducing slurry concentration or changing operational parameters, can also help,
selecting materials with higher hardness and wear resistance provides a direct solution to the problem of
particle-induced erosion. This approach addresses the root cause by enhancing the component's ability to
resist abrasive wear.
3.During a routine inspection closeout for a high-speed turbine, the source inspector notices that one of
the components was replaced with an alternative part not originally specified in the design. This part has a
slightly different specification but is claimed to be equivalent by the supplier. The inspector is required to
document this deviation before finalizing the inspection report.
What is the most appropriate action for the inspector to take to ensure compliance with the API SIRE
guidelines?
A. Document the deviation and proceed without further action.
