Water and Fuel Systems Maintenance (WFSM) Set B Volume 2 Practice Test

These questions are part of the practice quiz. Start practicing

• What happens when the float in a Milspec vertical filter separator rises to the top position?
• At what psi should the fuel system pressure relief be set if the maximum deadhead pressure is 125 psi?
• Where is the control tubing rerouted when the water drain valve is removed from the filter separator?
• A gap between the metallic sealing ring and tank shell indicates what condition of the sealing ring?
• What maintenance step is critical before starting any work on a water system?
• What is the inspection frequency for a pressure relief valve?
• What should you be cautious of when removing the automation shutoff nozzle poppet valve cover?
• What is the significance of flow rate measurements in a water system?
• How does the new CFF21 flange control differ from the old pilot valve assembly?
• What type of electrical units and wiring is used in non-hazardous locations such as pressurized control rooms?
• What maintenance task is critical before using a new fuel pump?
• What is the size and termination point of the water draw-off line in an all-weather tank?
• Which is not a safety hazard associated with tank cleaning?
• The emergency stop switches have what type of contacts?
• What is the recommended frequency for inspecting backflow preventers?
• Which maintenance activity is viscosity testing associated with?
• Electrical controls in hazardous areas must be proofed against which hazard?
• What maintenance practice can prevent the buildup of scale in water systems?
• What is the likely consequence of a malfunctioning check valve in a fuel system?
• What common problem can occur if a water system is not properly maintained?
• What additional equipment is recommended for safe handling of fuel vapors during fuel delivery?
• What does the acronym "BOD" refer to in water quality testing?
• What must be disabled when filling the tank to check the high high level alarm?
• About how far above the tank floor is the first stage of the deep well turbine pump located?
• What is typically found on top of horizontal underground storage tanks and cut and cover tanks that store jet fuel?
• What action should be taken if the pump is not achieving the desired pressure?
• What is the purpose of a fuel additive in diesel fuel?
• What is the term for the process of removing air from a fuel system?
• What component is typically adjusted to account for meter calibration errors?
• What does the term “water hammer” refer to in plumbing systems?
• If the fuel discharge valve fails to open, what should you check first?
• What type of maintenance is periodic pressure testing considered?
• What is the recommended action when noticing a valve stuck in the open position?
• What size pipe is used as the gauge well on a cone roof tank with a floating pan?
• What is a typical symptom of a failing foot valve in a dispensing system?
• Why are monthly inspections important for fuel tanks?
• What color are the emergency stop switches?
• What is the normal criterion used to determine the fuel requirement of a base that is not a primary port?
• Which substance is commonly used for fuel system cleaning?
• What is the significance of maintaining proper water levels in a water system?
• What type of grounding rods are used on above ground fuel tanks?
• What is the slope of the topping line inside an all-weather tank and where does it terminate?
• Which component of a fuel system is primarily responsible for separating solid particles from fuel?
• Which type of pump is typically preferred for high-pressure applications in water systems?
• What is the main function of an air separator in a fuel system?
• If you change the Brodie coarse adjustment one position, what change is made to the register reading?
• What prevents fuel from entering a roof drain line?
• What is the minimum speed in miles per hour for a scraper when cleaning a pipeline?
• How much will each notch of the Smith coarse adjustment lever change the calibration?
• During an annual pressure test, what is used to pressurize the piping system and for how many hours should the pressure be maintained?
• What is a common indicator of a leak in a fuel line?
• How many revolutions will the drive shaft on a three piston vertical positive displacement meter make for each gallon of fuel delivered?
• Which parameter is crucial to monitor in water quality assessments?
• How is the product identification displayed on an above-ground tank?
• What temperature is typically ideal for storing diesel fuel?
• How does a water softener function?
• What maintenance practice helps prevent corrosion in water systems?
• What size is the clean-out line on an underground tank and where does it terminate outside the tank?
• Which factor is crucial for the long-term efficiency of a water system?
• What is the impact of high levels of turbidity in water?
• What action should be taken if the restriction indicator on a MC-7 air compressor is tripped?
• What is the purpose of an injector in a fuel system?
• How many hoses does a master meter typically have and where are they connected?
• What tool is commonly used to measure the water pressure within a system?
• What material is typically used for the construction of above ground fuel tanks?
• What type of filter is commonly used for removing large particles from water?
• Where should you install the pressure gauge to check for sufficient pump pressure on a self-contained dispensing unit?
• What characteristics of fuel can affect engine performance?
• What should be done to meters in a pit that is to be abandoned?
• To meet Air Force standards, meters must be within what percent of total flow displaced?
• What is a common effect of using a sediment filter in water systems?
• You must clean an operating tank that is not internally coated and does not have a receiving filter separator every?
• What is the primary purpose of grounding cables in fuel systems?
• When you have replaced the pump head of a dispenser pump but the pump still binds, you should:
• What maintenance activity is suggested for managing water in fuel systems?
• In a fuel dispensing system, what is a potential consequence of not properly maintaining seals?
• Who should perform repairs when a Smith meter requires major maintenance?
• What is a common cause of leakage inside the back of a liquid control meter?
• What potential issue can arise from using improper fuel types in a system?
• How does the Defense Logistics Agency determine the type, size, and number of fuel tanks needed at each base?
• What is the main role of a check valve in a fuel system?
• Which component controls the water drain system?
• What is the purpose of a differential pressure gauge in a liquid system?
• Which safety device is vital to monitor during the dispensing of fuel to prevent overpressure?
• To prime a self-contained dispenser pump, you squirt:
• What is the primary purpose of an expansion tank in a water system?
• What is one advantage of using chlorine for water disinfection?
• Which instrument is used to check the liquidometer accuracy?
• Which type of pump is ideal for moving a consistent volume of liquid?
• Which Air Force information management tool is used to record vapor readings during tank cleaning?
• What is the function of a diaphragm in a pump system?
• The double-check floating roof tank is the most efficient type of roof because the roof?
• What problem would cause a rotary pump to have an excessive vacuum reading?
• At what vapor level may workers initially enter a tank for cleaning?
• When is the self-contained dispenser pump regulating valve functioning properly?
• What is the minimum size in inches of the unloading manifolds on Air Force installations?
• How frequently should water tanks be cleaned and disinfected?
• When should you release the safety override switch on a MC-7 air compressor?
• What is the purpose of a surging tank in a water system?
• The roof guide is installed on floating roof tanks to?
• When can people cleaning Air Force petroleum storage tanks use portable oxygen tanks and masks?
• At what percent of system deadhead pressure will pipelines be tested during the hydrostatic test?
• When the float of a filter separator is in its lowest position, supply pressure is directed to which component?
• How often is the master meter calibrated?
• What is the primary reason for implementing regular maintenance in fuel systems?
• The dead weight tester is primarily used to calibrate which equipment?
• Which valve in a self-contained pumping unit equalizes the pressure in the system when the motor is turned off?
• Which valve regulates the flow through the service station dispensers?
• What type of grounding rod is used on a horizontal fuel tank installed under the pump house floor?
• In water systems, what is the main purpose of a filtration system?
• Why is the mechanical line leak detector test leak rate set to 3-1/2 milliliters per second?
• Which process is used to measure the pressure in a fuel system?
• What is the primary purpose of a filtration system in water maintenance?
• What method is commonly used to reduce oxygen levels in a fuel storage tank?
• What is an expansion tank used for in a water system?
• How can the presence of algae in a fuel tank be mitigated?
• When a Brodie meter reads 1005 gal, what should you do to adjust the reading?
• How is corrosion commonly addressed in fuel systems?
• When cleaning a tank without dikes, how far must an air compressor be positioned upwind?
• What is a common indicator of biofouling in water systems?
• A pressure relief valve installed around the inlet block valve of a floating roof tank is adjusted to open at what pressure?
• What component of a fuel storage system is essential for detecting leaks?
• What type of gauging device is normally used to gauge small service station tanks, and what is the increment of measurement?
• What is the standard increment of measurement for a tape and bob gauging device used at service stations?
• What safety feature is mandatory on new fuel transfer pumps as per safety standards?
• How often should fuel systems be inspected for leaks?
• The pneumatic tank probe operates using which type of gas?
• How many days in advance must you request permission before entering a fuel tank?
• Tank truck unloading headers will be spaced about how many feet apart?
• When removing the KMU-416/F modification kit with 9 additional elements, how many elements must be removed from the front side to balance the manifold?
• How often should fuel quality testing be performed?
• What should be regularly checked to ensure the proper functioning of pneumatic tank probes?
• What grade of oil is used in the oil separator on a MC-7 air compressor if the temperature is above 40 degrees F?
• Why is it important to calibrate flow meters regularly?
• Why is it necessary to mark the wobble plate before removing the bobble plate from the measuring unit?
• At what level in an underground fuel tank is the low-level shutoff set to deenergize the fueling pump motor before the pump runs dry?
• For safe dispersal of fuel vapors, to what height must a storage tank vent pipe extend?
• What is a common characteristic of dual dispensing motors compared to single dispensing motors?
• Which is not a responsibility of the major command fuels engineer's representative during tank cleaning?
• What is the role of a sediment trap in fuel systems?
• What is the standard method used for disinfecting water feed lines?
• What does the acronym "TSS" stand for in water testing?
• What is the purpose of a surge check valve in the system?
• Which components should be replaced before replacing a manway cover?
• What does the term "fuel polishing" refer to?
• Where can you find a pressure vacuum gauge on a Type 2 hydrant system?
• What can cause a fuel dispenser pump to bind during operation?
• At what pressure should safety valves typically be set in a fuel system?
• What does the term “flash point” indicate regarding fuel?
• What is the most probable cause for a meter to over-register?
• What is the primary function of backflow preventers?
• What maintenance practice can extend the life of a water pump?
• What safety measure should be taken when working with fuel systems?
• Which type of fuel additive can help in preventing fuel gelling in cold weather?
• What condition requires communication gear to be used during the cleaning of an underground JP-8 tank?
• What are the two main types of pumps used in water systems?
• What is the difference between the motors used in the self-contained single dispensing and dual dispensing units?
• What mesh strainer is typically used before pumps in fuel systems?
• What is the maximum allowable water content in diesel fuel?
• How can microbial contamination in fuel be detected?
• What is the recommended storage temperature range for diesel fuel?
• What are the key components of a fuel storage tank?
• What minimum acceptable pressure reading at the hydraulic valve would rule out register creeping?
• What does "thermal cycling" in water systems refer to?
• What must you do if you receive a new fuel dispenser with a motor set for 110 volts but the service station island is serviced for 220 volts?
• During which condition should a pressure gauge reading be taken to assess the regulator's performance while dispensing?
• What process can effectively extend the lifespan of diesel fuel during storage?
• In fuel systems, what is the key aspect of viscosity that needs to be tested?
• What is the standard size of tank truck unloading headers typically used?
• At what level does the high-level alarm actuate on a cone roof with a floating pan?
• To qualify for an Air Force tank cleaning contract, a contractor must provide proof of completing similar work on how many projects?
• What is the minimum recommended battery voltage for the Multirae PGM 50?
• In an American Petroleum Institute 1581 filter separator, coalescers are rated for what minimum gallons per minute per inch of length?
• Which component is essential in preventing backflow in water systems?
• How does water contamination affect fuel quality?
• How far does the Class I Division 2 hazardous area around a service station dispenser extend outward?
• What is the normal flow direction of fuel through a strainer?
• What type of vent is found on a floating pan?
• Which type of tank gauge is capable of testing a tank for leaks?
• What maintains a tight seal in the measuring chamber of a Smith meter?
• What equipment is typically monitored for leaks in fuel systems?
• Why is it crucial to maintain fuel system temperature controls?
• What fuel properties are most affected by microbial contamination?
• What does "pH" measure in the context of water quality?
• In a cone roof tank with a floating pan, where does the product withdrawal line terminate?
• Which fuel system headers have no requirement to connect a grounding cable during servicing?
• Why is water sampling crucial in fuel systems?
• The records for annual pipeline pressure tests are kept on file for how many years?
• Why is it important to regularly inspect the fuel system for leaks?
• What is installed on a floating roof tank to help prevent out of roundness?
• During the 5-year pressure test, what is used to pressurize a pipeline and for how many hours should the pressure be maintained?
• Who assigns a qualified tank entry supervisor for a tank cleaning operation?
• What should the vacuum reading be on a normal self-contained dispenser pump installation?
• What is the role of a pressure regulator in a water system?
• Truck loading and offloading headers are grounded by what size and type of cable?
• End play in a self-contained dispenser pump can be taken up by removing the internal gear pump head and:
• What is the primary factor that affects the effectiveness of a water treatment process?
• A differential pressure gauge installed on a fuel system measures the difference between which pressures?