SOP S1-6230

Questions and Answers

What are abnormal conditions?

Controllable conditions that have reached an emergency level

Controllable conditions that could cause a safety issue but have not reached an emergency level (correct)

Uncontrollable conditions that could cause a safety issue

Uncontrollable conditions that have reached an emergency level

What is required when taking an LNG storage tank out of service for maintenance or repair?

A written detailed procedure (correct)

No procedure is required

A verbal request

A simple written request

When is warming and cooldown procedure necessary for an LNG storage tank?

When it has a leak

When it is full

When it is in service

When it has been out of service for maintenance or repair (correct)

Do FNG LNG storage tanks operate year-round?

Yes Signup and view all the answers

What is required when warming or depressurizing an FNG LNG storage tank?

A written detailed procedure Signup and view all the answers

What is the Maximum Allowable Operating Pressure (MAOP) for Distribution Pressure?

60 psi Signup and view all the answers

What is the typical operating pressure for Distribution Pressure at Site #1?

45-50 psi Signup and view all the answers

What gas detection procedures are in place?

Procedures are in place for levels between 25% and 50% LEL and levels over 50% LEL Signup and view all the answers

What happens when gas detectors reach 50% LEL?

The ESD system automatically shuts down all valves tied to the ESD system Signup and view all the answers

What is the SOP for flame detectors activation due to fire?

SOP 1112 - Fire Protection Plan Signup and view all the answers

What are the specific steps outlined in the procedure for false detections caused by low temperature, glaring sun, or other causes?

The operator should verify the detection and follow the procedure Signup and view all the answers

What is the proper PPE and ventilation in case of accidental release of polypropylene glycol?

Specialized PPE and ventilation is required Signup and view all the answers

What is the recommended time to change the filter element in Master Meter Dry Gas Filters?

At half of its collapsible differential pressure of 12.5 PSIG Signup and view all the answers

Study Notes

Procedures for Abnormal Operating Conditions in LNG Storage and Distribution

Abnormal conditions are controllable conditions that could cause a safety issue but have not reached an emergency level.
Taking an LNG storage tank out of service for maintenance or repair requires a written detailed procedure.
Warming and cooldown procedures are necessary when an LNG storage tank requires maintenance or repair and has been out of service, respectively.
FNG LNG storage tanks are operational year-round, and warming or depressurizing them requires a detailed written procedure.
Abnormal operating conditions may exist if Distribution Pressure exceeds its Maximum Allowable Operating Pressure (60 psi).
Distribution Pressure at Site #1 is typically operated at 45-50 psi, well below the MAOP of 60 psi.
Gas detection procedures are in place for levels between 25% and 50% LEL and levels over 50% LEL.
The ESD system automatically shuts down all valves tied to the ESD system when gas detectors reach 50% LEL.
Flame detectors activation due to fire requires following SOP 1112 - Fire Protection Plan.
False detections caused by low temperature, glaring sun, or other causes require specific steps outlined in the procedure.
Polypropylene glycol is used in the system and requires proper PPE and ventilation in case of accidental release.
Good engineering practice suggests changing the filter element in Master Meter Dry Gas Filters at half of its collapsible differential pressure of 12.5 PSIG.

Description

Test your knowledge on Procedures for Abnormal Operating Conditions in LNG Storage and Distribution with this informative quiz. From understanding warming and cooldown procedures to gas detection protocols, this quiz will cover all the essential aspects of ensuring safety in LNG storage and distribution. Learn about written detailed procedures and good engineering practices that are necessary to prevent safety issues and handle any abnormal operating conditions that may arise. Don't miss out on this opportunity to enhance your understanding of LNG storage and distribution procedures and take this quiz now!