Operator Knowledge Spot Check Quiz

The correct answer is to review the first out alarm page to determine what the cause was, verify the system is safe to restart, and communicate to supervision. This is the appropriate course of action because it allows for identifying the cause of the ESD activation, ensuring the system is safe before restarting, and informing the relevant authority to provide necessary guidance or instructions. Simply opening valves and getting the facility back online without understanding the cause or ensuring safety could lead to further issues or potential hazards. Asking the supervisor to figure it out without taking any initial steps would delay the resolution process.

Bump tests are required on personal gas detectors daily to ensure that the sensors and alarms are functioning properly. This helps to verify that the detector can accurately detect hazardous gases and provide timely warnings to the user. By performing daily bump tests, any potential issues with the detector can be identified and addressed promptly, ensuring the safety of the user in potentially hazardous environments.

Nitrogen is a colorless and odorless gas that can cause asphyxiation. This means that when it is inhaled in high concentrations, it can displace the oxygen in the air and lead to suffocation. Asphyxiation can occur without any warning signs, as nitrogen does not have a distinct smell or color. Therefore, it is important to handle nitrogen with caution and ensure proper ventilation when working with it to avoid any potential hazards.

The statement suggests that Oak Grove Gas Plant meets the requirements outlined by the Occupational Safety and Health Administration (OSHA) as a Process Safety Management (PSM) facility. This means that the plant has implemented the necessary safety measures and protocols to ensure the safe handling of hazardous materials and prevent accidents.

A vacuum breaker is used to protect storage tanks for liquids from implosion or over pressure. This device helps to maintain the balance of pressure inside the tank by allowing air to enter when the pressure drops below a certain level. This prevents the tank from collapsing due to the vacuum created when liquid is removed from it or from becoming over pressurized when liquid is added to it. By regulating the pressure, the vacuum breaker ensures the safety and integrity of the storage tank.

The two parameters that directly affect product spec are temperatures and pressures. These factors play a crucial role in determining the quality and characteristics of a product. Temperature influences the physical and chemical properties of substances, while pressure affects their stability and behavior. By controlling and adjusting these parameters, manufacturers can ensure that the product meets the required specifications and standards.

Differential Pressure (DP) is the correct answer because it is the unit of measure used to monitor filters for plugging. Differential pressure refers to the difference in pressure between two points in a system, and in the context of filter monitoring, it is used to measure the pressure drop across the filter. As a filter becomes clogged or plugged with debris, the differential pressure across the filter increases. By monitoring the DP, we can determine when a filter needs to be cleaned or replaced to ensure optimal performance and prevent damage to the system.

The flare KO drum is used to collect liquids before they are sent to the flare. This is important because the flare is designed to burn off gases, not liquids. By collecting the liquids in the KO drum, it helps to prevent them from entering the flare system, which could cause operational issues or safety hazards.

The correct answer is to check the instrument air supply to the valve, ask the board operator to try the valve again and listen for solenoid, inspect the fire check, and look for abnormalities. This is the most appropriate course of action as it allows for a systematic approach to identify any noticeable problems with the valve. By checking the instrument air supply, listening for solenoid operation, inspecting the fire check, and looking for abnormalities, potential issues can be identified and addressed. Calling maintenance or using a pipe wrench may not be necessary if the problem can be resolved through these initial steps.

The correct answer is Therminol 55. Therminol 55 is the type of oil used as the heat medium for H-703 and H-704.

When purging a system, it is important to get all oxygen out of the system. Oxygen can react with certain substances, leading to corrosion, oxidation, or other undesirable effects. Therefore, it is necessary to remove all traces of oxygen to ensure the system's integrity and prevent any potential damage or issues.

A check valve is not considered a positive isolation for a lock out tag out because it only allows flow in one direction and does not provide a complete shut-off of the system. In a lock out tag out procedure, a positive isolation is required to ensure that all energy sources are completely disconnected and isolated to prevent any unexpected release of energy.

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After cutting, welding, and grinding, the firewatch must monitor the area for 30 minutes. This is necessary to ensure that there are no potential fire hazards or sparks that could ignite. It allows for any residual heat to dissipate and for any smoldering materials to be identified and extinguished if necessary. Monitoring the area for this duration helps to mitigate the risk of fire and ensure the safety of the work environment.

Braided Stainless Steel hose is the correct answer because ethane is a highly flammable gas and requires a hose that can withstand high pressure and is resistant to corrosion and leaks. Braided Stainless Steel hoses are known for their durability, flexibility, and resistance to chemical reactions, making them suitable for handling ethane safely. Rubber high pressure hydraulic hoses may not be suitable for ethane due to their potential for degradation and leakage. Using any hose without specific properties could pose safety risks when handling ethane.

The answer is "No" because the question asks if it is possible to offload the slop oil/closed drain tanks using a vacuum truck according to the procedure. Since the answer is "No," it suggests that it is not possible to perform this task as per the procedure.

In case of a leak on a DOT pipeline, it is important to contact Gas Control. They are responsible for monitoring and controlling the flow of gas through the pipeline system. By contacting Gas Control, they can take immediate action to address the leak, ensure the safety of the surrounding area, and coordinate with relevant authorities for further assistance if needed. Calling 911 may also be necessary in case of emergencies, but contacting Gas Control should be the first step to report the leak.

The DeC2 overhead product is ethane. Ethane is a colorless and odorless gas that is commonly used as a fuel and in the production of plastics. It is a byproduct of natural gas processing and is typically separated from other hydrocarbons through a process called fractionation. Ethane has a lower boiling point than propane and gasoline, making it easier to separate and capture during the refining process.

Flow stabilizer 1 and 2 are used to process liquids. The answer "NGL/RVP" suggests that these flow stabilizers can be used to process Natural Gas Liquids (NGL) as well as liquids with high Reid Vapor Pressure (RVP). This implies that the pipelines into which these process liquids can be flowed must be capable of handling both NGL and high RVP liquids.

To leave a safety device bypassed for more than 24 hours, the Management of Change (MOC) process must be completed. MOC ensures that any changes made to the system, such as bypassing a safety device, are thoroughly evaluated for potential risks and hazards. It involves a systematic approach that includes assessing the impact of the change, obtaining necessary approvals, implementing appropriate controls, and communicating the changes to all relevant personnel. By completing the MOC process, the organization can ensure that the bypassed safety device is properly managed and that any associated risks are effectively mitigated.

When too much reflux returns back to the tower, it causes the tower to become too cold. This drop in temperature triggers the reboiler to call for heat to the system. The reboiler is responsible for providing the necessary heat to the tower in order to maintain the desired temperature and separation of components. Therefore, the correct answer is that the tower gets too cold and causes the reboiler to call for heat to the system.

The product that comes off the DeC2 bottoms is C3+. This means that the product is a mixture of hydrocarbons with three or more carbon atoms. It could include propane, butane, gasoline, and other heavier hydrocarbons. However, without further information, it is not possible to determine the exact composition of the C3+ product.

The statement is false because DeC2 Surge vessels are not 30,000 gallon spheres.

After removing a LOTO (Lockout-Tagout), it is important to place the valves in their normal operating position. This ensures that the equipment or system can resume its regular functioning. Leaving the valves closed until someone instructs to operate them may cause delays or disruptions in the workflow. Opening all valves immediately after removing the LOTO can be dangerous if there are any residual pressures or hazardous materials present. Therefore, placing the valves in their normal operating position is the appropriate step to take.

The difference between a cooler and a condenser is that a cooler is liquid full and cools the liquid by exchanging heat with the air, while condensers are used to condense vapor back into a liquid by exchanging heat with the air. Coolers typically have a water jacket to cool the liquid, whereas condensers do not. Additionally, coolers are often plate and frame, while condensers are fin fan.

During an emergency, after evacuation, it is crucial to account for all personnel. This step ensures that everyone has successfully evacuated the area and is safe. By accounting for all personnel, emergency responders can determine if anyone is missing or trapped, and take immediate action to rescue them if necessary. It also helps prevent confusion and allows for a more efficient and organized response to the emergency situation.

The correct answer is to perform the 10-20-30 process for purging. This process involves purging the piping or equipment with an inert gas, such as nitrogen, in three stages. In the first stage, the equipment is purged with 10% of the required flow rate for a specific period of time. In the second stage, the flow rate is increased to 20% and purging continues. Finally, in the third stage, the flow rate is increased to 30% and purging is continued until all the oxygen is removed. This process ensures that the oxygen is effectively removed from the piping or equipment after a repair.

The hot oil flows through the tube side on exchangers. In a heat exchanger, the tube side refers to the side where one fluid flows through a series of tubes, while the shell side is the area outside the tubes where the other fluid flows. The choice of which side the hot oil flows through depends on the design and application of the exchanger.

If you see a flare emitting black smoke, it is important to inform your board operator and complete a method 22. This is because black smoke indicates a potential problem or malfunction with the flare, which could pose a safety risk. Informing the board operator ensures that they are aware of the situation and can take appropriate action. Completing a method 22 involves following a specific procedure or protocol to address the issue and ensure that it is properly resolved.

Flare sweeps are used to prevent oxygen from entering the flare header during a fire. Fuel gas is used for this purpose as it helps to displace the oxygen and create an inert atmosphere, reducing the risk of combustion. By keeping oxygen away from the flare header, the fuel gas helps to ensure that the fire does not spread or become more intense.

The correct answer is "Globe valve because it is designed for controlling flow." A globe valve is specifically designed for throttling or regulating the flow of fluid. It has a disc or plug mechanism that can be adjusted to control the flow rate. On the other hand, a ball valve is more commonly used for on/off applications rather than flow control. While a ball valve can also be used for throttling flow, it may not provide the same level of precision and control as a globe valve. Therefore, in the given scenario, the globe valve would be the preferred choice for throttling flow.

Firechecks are installed on the instrument air supply to ESD/ESV valves to provide protection in case of a fire. When a pool fire occurs around the valve, the firecheck detects the heat and triggers the immediate venting of instrument supply air to close the valve. This action helps prevent the spread of fire and mitigate potential damage. The firecheck acts as a safety measure by quickly responding to fire incidents and ensuring the valve is closed to minimize risks.

In an emergency, the first contact that needs to be made is 911. This is because 911 is the emergency telephone number in many countries, including the United States, and it is specifically designated for emergency situations. By calling 911, individuals can quickly reach emergency services such as the police, fire department, or ambulance, who can provide immediate assistance and dispatch the necessary resources to handle the situation effectively.

The statement "All PSV's relieve to the flare" is false. PSV stands for Pressure Safety Valve, which is a safety device used to protect equipment or systems from overpressure. While PSV's are designed to relieve pressure, they do not always relieve to the flare. The destination of the relieved pressure depends on the specific design and configuration of the system. It could be directed to a flare system, a vent stack, or other designated areas for safe release. Therefore, it is incorrect to assume that all PSV's relieve to the flare.

The temporary fuel gas is supplied to the facility from the 12" Gathering Line.

Double Block and Bleed refers to the closure of a line, duct, or pipe by closing and locking two in-line valves and opening and locking a drain or vent valve in the line between the two closed valves. This ensures that the line is completely isolated and any pressure or fluid trapped between the valves can be safely released. It is a safety measure to prevent any potential leaks or accidents during maintenance or shutdown procedures.

When blowing down equipment and piping with a blow down hose to another vessel or flare, it is important to open the downstream end of the hose first. This is because opening the downstream end first allows any trapped air or debris to be released before the flow of fluid begins. If the upstream end is opened first, the trapped air or debris may be pushed further into the system, potentially causing damage or blockages. Therefore, to ensure a safe and effective blow down process, it is necessary to open the downstream end of the hose first.

2 phase flow refers to a situation where a liquid is undergoing a phase change and transforming into a vapor. This typically occurs when the liquid is subjected to a decrease in pressure, causing it to rapidly evaporate or "flash" into a gas. This phenomenon is commonly observed in various industrial processes, such as in steam generation or refrigeration systems. In a 2 phase flow, both liquid and vapor phases coexist and flow together, often resulting in complex and dynamic behavior.

Continuous monitoring must be recorded on the Hot work permit every 2 hours. This ensures that the work environment is being regularly assessed for any potential hazards or changes that may occur during the work process. By recording the monitoring every 2 hours, there is a consistent check on the conditions to ensure the safety of the workers and the prevention of any accidents or incidents.

When working on a piece of equipment, the minimum permits required are PTW (Permit to Work) and LO/TO (Lockout/Tagout). A PTW is necessary to ensure that the work is authorized and controlled, while LO/TO is essential for the safety of workers by isolating and de-energizing the equipment. This combination of permits ensures that the work is carried out safely and in compliance with the necessary procedures.

The High High Shutdown on all Gas detectors in the facility is set at 40% LEL. LEL stands for Lower Explosive Limit, which is the minimum concentration of a gas or vapor in the air that can ignite and cause an explosion. The High High Shutdown is a safety measure that triggers an alarm or shuts down the system when the gas concentration reaches a dangerously high level. In this case, the facility has determined that a gas concentration of 40% LEL is the threshold for a potentially hazardous situation, prompting the need for immediate action to prevent any accidents.

C-885, C-886, and C-887 are all identified as reciprocating compressors. Reciprocating compressors work by using a piston that moves back and forth in a cylinder to compress the air or gas. This type of compressor is commonly used in applications that require high pressure and low flow rates, such as refrigeration and air conditioning systems. It is characterized by its simple design, high efficiency, and ability to handle varying loads.

A temporary MOC is valid for a maximum length of 180 days. This means that it can be used for up to 180 days before it expires and needs to be renewed or replaced. It provides temporary authorization or permission for a specific activity or purpose, and after 180 days, it is no longer considered valid.

The first attempt at repair on an LDAR must be made within 5 days. This time frame ensures that any leaks or issues with the LDAR are addressed promptly, minimizing the potential for further damage or environmental impact. Waiting longer than 5 days could lead to increased emissions or other negative consequences.

If the product is off spec, it is not advisable to rerun the bottoms of stabilizer 1 & 2 back to the condensate surge. This is because the off-spec product may contain impurities or components that could contaminate the condensate surge, leading to further issues or off-spec products downstream. It is better to address the off-spec product separately and take appropriate measures to rectify the issue.

VESDA stands for Very Early Smoke Detection Alarm. It is located in the PDC & RIE Buildings.

The pump 21-P-205A is a centrifugal pump. Centrifugal pumps are commonly used in various industries for transferring fluids by converting rotational kinetic energy into hydrodynamic energy. They are known for their high flow rates and efficiency in handling large volumes of liquids. This type of pump is suitable for applications where a continuous and steady flow of fluid is required.

When local emergency responders arrive on site, the incident commander should work with them to manage the incident. This collaboration between the incident commander and local emergency responders is known as Unified Command. In Unified Command, all agencies and organizations involved in the incident work together to establish a common set of objectives and a single incident action plan. This approach ensures effective coordination, communication, and decision-making, leading to a more efficient and coordinated response to the incident. Joint Task Force and Joint Command refer to different command structures and are not applicable in this context.

The primary blanket gas source for the Stabilizer inlet feed separators is the residue gas from TXP1. This means that the gas coming from the TXP1 unit is used as a blanket gas to create a protective layer in the feed separators. This helps to prevent the entry of air or other contaminants into the separators and ensures the purity and integrity of the process. Propane, nitrogen, and fuel gas from the fuel gas header are not mentioned as the primary blanket gas source in this context.

The evacuation siren is activated manually from the DCS (Distributed Control System). This means that someone in control of the DCS system must initiate the activation of the siren. It is not triggered automatically by any fire/gas detector or pull station. Additionally, there is a specified pull station in the control room, but it is not used for activating the evacuation siren.

Helium is used to pre-charge sample cylinders because it is an inert gas that does not react with the samples being collected. It is commonly used in gas chromatography and other analytical techniques to prevent contamination or reactions with the sample. Helium is also preferred because it has low boiling and freezing points, making it easier to handle and store.

Safety relief valve testing is a crucial aspect of ensuring the proper functioning of these valves. The preset frequency for testing these valves is every 5 years. This means that the valves should be tested and inspected at least once every 5 years to ensure that they are in good working condition and can effectively relieve pressure in case of an emergency. Regular testing helps to identify any potential issues or malfunctions in the valves and allows for timely maintenance or replacement if necessary.

To find the HH pressure shutdown setpoint of a piece of equipment, one can look at cause and effect diagrams, operating procedures, and DCS screens. Cause and effect diagrams provide a visual representation of the relationships between various factors and can include information about setpoints. Operating procedures typically outline the steps and parameters for operating equipment, including setpoints. DCS screens, which display real-time data and control options, often include information about setpoints. Checking the instrument tag in the field may not provide the specific setpoint information needed.

A critical lift must be completed when lifting over live lines to ensure the safety of the workers and to prevent any accidents or damage to the equipment or infrastructure. Additionally, a critical lift must be completed when the weight exceeds 75% of the crane's rated capacity to avoid overloading the crane and causing it to fail or collapse.

The Emergency Response plan is located in all Williams Vehicles, in a white binder in the Control Room labeled ERP, and on the Oak Grove Share Point Site.

Operators must take a refresher test on the Site Specific Operating Procedures every 3 years. This ensures that they stay up to date with any changes or updates to the procedures and can effectively carry out their tasks in a safe and efficient manner. Taking the test every 3 years allows operators to refresh their knowledge and skills without overwhelming them with too frequent testing.

Thermal cycling can cause expansion and contraction of the materials in brazed aluminum heat exchangers, leading to stress and potential failure of the joints. This can result in a loss of containment, as the brazed joints may become weakened or even break completely. Additionally, the repeated thermal cycling can accelerate the aging process of the heat exchangers, causing premature failure of the entire system.

An employee should initiate an ESD in the following situations: when there is a fire observed in or around the facility that is larger than the incipient stage and could cause an explosion; when there is an uncontrollable release of any hazardous material that can potentially ignite or harm people or the environment; when there is a storm or weather condition that poses a substantial threat to human life or health or could damage equipment at the facility; when there is any condition that an employee feels is an immediate threat to human life, health, or the environment and warrants the shutdown of the facility; and in the event of a total power failure, loss of computer systems, or deviation from safe operating limits.