CDFA Measurement Verification Practice Exam

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• How does a badge on a measuring device help with compliance and regulation?
• What defines a cryogenic device?
• What is the maintenance tolerance percentage on a full load test?
• What type of gas is argon categorized as?
• What determines the size of the test measure an inspector shall use?
• When do you start the 30-second timer when draining LPG provers?
• What does the term "load service" refer to in electrical systems?
• What indicates that the low flame test on a vapor meter is successful?
• What material should flexible commercial tape measures be made of?
• What must the totalizer on retail motor fuel dispensers be?
• Where is the capacity point of a berry box located?
• When must the owner present their gas meter for inspection?
• What key benefit does the zero set back interlock provide for electronic vehicle tank meters?
• Which measurement unit is critical for fuel tax estimation?
• What does the EPO exclude from standard testing?
• For what reason must the owner be given notice prior to a vapor meter inspection?
• What term describes the apparent displacement of a graduation with respect to a fixed reference as viewed from different points?
• What is the minimum increment indicated on a wire and cordage measure?
• What category of device is sealed by an event logger?
• What is the minimum test draft for a vehicle tank meter during a normal test?
• How is a device described when its performance conforms to the standard within the applicable tolerances and other performance requirements?
• How long should the meter being tested remain in the proving room for temperature equalization with the prover?
• In which court are most criminal misdemeanors typically tried?
• Which aspect is essential for ensuring safety when handling cryogenic liquids?
• The temperature compensator on a wholesale device should be adjusted to deliver at what temperature?
• What is the maximum tolerance for under-registration on taximeters?
• What information must be shown on the nameplate affixed to the front of a vapor meter?
• What information does the (MM) designation on an electric meter badge indicate?
• What is typically done every two years according to safety standards for LPG distribution?
• How long should hydrocarbon meters be held in the prover room for temperature equalization?
• What does the term "commercial device" generally imply?
• What is the responsibility of the manufacturer during the type approval process?
• What features must a wet hose or pump discharge system have?
• How is the unit price for a product expressed?
• Where must time, distance, and rate schedules be posted in a taxi?
• On which side is the test tee of a vapor meter installed?
• What type of liquid is used for testing a liquid measuring device?
• Who is responsible for obtaining certification for each submetered service connection?
• Which of the following devices is used for measuring and controlling flow in fluid systems?
• What must test drafts of wholesale liquid measuring devices be equal to regarding flow rate?
• What type of device might require a manufacturer's recommended full load test amperage?
• What type of hose is required on a gravity discharge unit?
• If a suspect enters a house and you obtain permission from an adult to enter, is evidence found inside a cabinet admissible?
• What does the thermal coefficient of expansion refer to?
• What aspect of a retail liquid measuring device is tested for compliance?
• What function does a pressure relief valve serve in metering systems?
• What term refers to valves designed to prevent reverse flow?
• What constitutes a violation in the context of starting a civil action?
• What is required for farm milk tanks after the initial volumetric test?
• What is a requirement for a dry hose (gravity discharge) system?
• In the context of electric service, who typically acts as the primary applicant for new service connections?
• What is the AC voltage rating required on an electric meter badge?
• What is the acceptance tolerance for underregistration on a cryogenic liquid measuring device?
• What is a primary characteristic of LPG that must be documented during sale?
• Where should the installation of the shut-off valve be placed on a vapor meter?
• What is the practical unit of electrical resistance?
• Which units can be used for measuring carbon dioxide in liquid form?
• What is an implication of inaccurate meter registration in taxis?
• Oxygen is classified as which of the following?
• What percentage of service capacity should an electric meter accurately measure?
• What is a serving utility?
• How many days is an owner given to present a gas meter for inspection?
• What is the requirement for posting federal and state taxes on fuel?
• For safety reasons, in which order should fuels be checked?
• How many fluid ounces are contained in one gallon?
• What is the appropriate method to check for leaks around the register of a vapor meter?
• What necessary action is complemented by the consent of a spouse in legal searches?
• What factors must be known when testing gravimetrically?
• What feature is mandatory for taxicabs regarding their meters?
• What is the minimum discharge rate for wholesale LPG allowed?
• What method is used to test taxi and ambulance meters?
• Where must the calibration point be located in a wet hose system?
• What is the maximum maintenance tolerance for fueling at truck stops during a 50-gallon test?
• What type of delivery hose is used for LPG devices?
• What is the minimum drain time required for retail tests on hydrocarbon meters?
• What routine maintenance action should be taken to ensure long-term performance of measuring devices?
• The TA of a meter refers to what?
• What is the minimum graduation for large volume cryogenic deliveries?
• When is a service agent not required to notify the sealer of an adjustment to a device?
• What information must wholesale devices display on their badge?
• What defines the applied test load for a full load test?
• Where should the capacity of a vehicle mounted LPG tank be displayed?
• How are acceptance tolerances defined in measurement verification?
• Which of the following is NOT an application of vehicle tank meters?
• What is the purpose of special tests in liquid measuring devices?
• What are the inserts in Chapter 1 of the field reference manual that are boxed, outlined, and shaded?
• What is the required range of results for multiple tests conducted at approximately the same flow rate?
• If a business owner's wife reports illegal activity, what is the status of the search conducted based on her consent?
• What is the smallest unit allowed on a wholesale LPG device?
• Which detail is not required to be clearly marked for general identification on a measuring device?
• What is the smallest unit allowed on a retail LPG device?
• How should the meters for taxi and ambulance services be checked?
• What is an important variable to consider when testing the accuracy of a measurement device?
• What is the role of the anti-drain valve in fuel dispensing systems?
• What is the value of the smallest unit for small delivery carbon dioxide measuring devices?
• Which best describes how liquids behave at low temperatures?
• On a cylindrical LPG tank, where are the dip pipes located?
• What is the minimum number of dip pipes required on a vehicle-mounted LPG tank?
• Which of the following is not a unit of rigid liquid measure?
• Why is it important to distinguish between wholesale and retail devices in testing?
• How often does a service agent need to renew their license?
• What must be added to the basic tolerances for cryogenic transfer standards tests?
• How should hydrocarbon meters indicate flow?
• What is the maximum operating pressure for hydrocarbon test meters when measuring LPG?
• How long is a search warrant typically valid?
• Which component is NOT typically required in vapor recovery systems?
• Which of the following is NOT a requirement for a retail motor fuel dispenser?
• What is the purpose of maintenance tolerances in device calibration?
• What is the temperature of absolute zero?
• What is defined as the number of revolutions of the gear meshing with the worm on the rotor shaft per rotation of the fastest dial pointer?
• What is the maximum allowable length of the discharge hose on a retail motor fuel device?
• What does "percent registration" indicate about a meter's performance?
• What is the purpose of the dip pipe on a vehicle mounted LPG tank?
• Which of the following measurements is considered most critical to ensure accurate metering?
• When conducting wholesale testing, how long must you drain a prover after the flow becomes a trickle?
• What is the maintenance tolerance for underregistration in a normal test on a cryogenic measuring device?
• What is the minimum amount for a test draft of wholesale liquid measuring devices?
• What is the method of sale for LPG in amounts over 5 gallons?
• How long must utility meter records of invoices and rate schedules be retained by the owner?
• What is the purpose of CCR section 4000 in H44?
• Which substance is most difficult to liquefy?
• What is the tolerance for vehicles for hire regarding registration accuracy when loaded?
• What type of delivery hose do cryogenic devices utilize?
• In terms of EPO liquid measuring device testing, what is the general sequence of steps?
• Vapor recovery systems are mandatory for which type of systems?
• Which document or guideline deals with putting measuring devices into service?
• What is the maximum allowable tolerance for maintenance of CNG meters?
• Which gas is most easily solidified?
• What defines a device as commercial?
• What tolerance level is acceptable for the acceptance testing of CNG?
• In the context of HB 44, what does the letter "T" signify?
• During LPG testing, when should temperature readings be taken at the prover?
• What is the tolerance for over-registration on taximeters?
• Which type of vehicle tank metering system does NOT require a zero set back interlock?
• What is the required temperature difference between the air prover oil and the meter under test when using a bell prover?
• Animal euthanistic devices are inspected every:
• How long can a hydrocarbon gas vapor measuring device remain in service without being retested?
• During LPG testing, when should temperature readings be taken at the meter?
• What is the maintenance tolerance on a 35 gallon test of a retail liquid measuring device?
• What must be available at retail motor fuel establishments during business hours?
• What is the boiling point of butane?
• Which device is used to seal a device with remote configuration capability?
• How often must animal euthanistic devices be tested?
• At what current load should the rotor or indicator of a meter start to rotate or increment continuously?
• How are tolerances applied when testing retail motor fuel?
• What design feature must the components of an electric meter system have regarding access to the internal mechanism?
• Which type of metering system specifically applies to aviation fuel delivery?
• What type of gas is classified as a hydrocarbon gas?
• What is the maximum height of pressure for natural and manufactured gas testing?
• How often are vapor meters typically checked?
• What is the purpose of the annual visual inspection of farm milk tanks?
• Which statement describes the nature of non-flammable gases?
• What is the maintenance tolerance for a 500-gallon test at truck stops?
• For a liquid measuring device manufactured after 1983, how long must information needed to complete a transaction be determinable in the event of power loss?
• Which of the following statements is true about pressure differences between meters and provers during testing?
• What is the minimum capacity of a wholesale device based on?
• How many days written notice must be given to the owner for an on-site inspection of a vapor meter?
• Which measurement unit is NOT appropriate for hydrocarbon meters?
• The normal test of a device shall be made at the maximum discharge flow rate and include flow rates down to what value?
• What is the weight equivalent of a Gasoline Gallon Equivalent (GGE)?
• How much air is required to purge small hydrocarbon meters before testing?
• Under what condition are two or more hoses on a retail LPG device allowed?
• What is the maintenance tolerance for wholesale Agri-Chem liquids?
• What is the maximum size of the bleeder valve opening on an LPG tank?
• What defines equilibrium pressure in measurement testing?
• What is the purpose of a pressure differential valve?
• What is a requirement for initiating a civil action against a business?
• What should be displayed about the manufacturer on an electric meter badge?
• For domestic cold water meters, what is the smallest value unit that must be indicated?
• What type of evidence is typically considered direct?
• How many cubic inches are in one gallon?
• An eyewitness is considered which type of evidence?
• What is the boiling point of cryogenic liquid?
• What should be open during the temperature equalization of hydrocarbon meters?
• What type of information is required on the receipt ticket for customers purchasing LPG?
• How is percent accuracy calculated in relation to kWh registration?
• What action is required if the ends of a linear measure are made of a softer material than brass?
• Which factor is NOT typically considered important in assessing witness credibility?
• What is an allowable performance in the meter creep test?
• How does vapor pressure change with temperature?
• What are the units used for cryogenic liquid measuring devices?
• Which of the following companies does not belong to the top builders of electric meters?
• Who should be informed if a service agent's license is revoked?
• What action should be taken if a witness in an interview suddenly requests to speak to a lawyer?
• What is the technical term used for a circuit breaker designed to prevent overheating?
• What is the boiling point of propane?
• If a master meter is used to check vapor meters, how often must it be certified?
• What is the relationship between temperature and vapor pressure?
• What is the required feature of an empty graduate’s base?
• Which characteristic of the testing liquid is essential for a liquid measuring device?
• What is the draft size for a 5/8 inch utility water meter?
• What is the safe working pressure for Acetylene?
• Who has the authority to amend NCWM for proposed changes regarding electric watt hour meter requirements?
• What is the maintenance tolerance for retail petroleum dispensers?
• In terms of testing accuracy, what happens if results fall outside the maintenance tolerance range?
• What is the acceptable discrepancy for digital money-value indications on computing-type devices?
• What should the tire pressure during testing reflect?
• According to Boyle's Law, if the volume is 50 gallons at 20 atm, what is the volume at 40 atm?
• What is an example of evidence used in legal cases?
• What does a low flame test on a vapor meter involve?
• What term refers to all sealers without qualification?
• What is the primary design purpose of a retail motor fuel device?
• What is the practical unit of electrical current?
• What tolerance is applied to ambulance odometers for registration accuracy?
• Which of the following represents the correct units for measuring small amounts of LPG?
• What type of hydrocarbon gas is acetylene classified as?
• What is the primary purpose of type approval for commercial devices?
• Code 4050 applies to which of the following?
• What is the allowable maintenance tolerance at truck stops for a 100-gallon test?
• What is the normal test tolerance for LPG meters?
• What is a key difference between state sealers and county sealers?
• What is the maximum hose length allowed at a boat dock or truck stop?
• What is the required accuracy of vehicle odometers for regulation?
• What kind of quantity does an electrical meter measure?
• What does Kh represent on an electric meter badge?
• What must precede the rate statement on a taximeter?
• What is the regulation tolerance for unloaded trucks regarding registration?
• Which of the following is required for customer use during business hours?
• The term "percent registration" is equivalent to which of the following?
• What is the minimum height of lettering required on an LPG price sign?
• How is the height of the tank capacity lettering specified?
• What information does the badge affixed to a meter typically display?
• Which parties may request a test for a hydrocarbon gas vapor measuring device after the initial installation?
• What is a "master meter"?
• What is the most likely cause of meter creep in a retail liquid LPG meter that pumps against a closed valve?
• What is the minimum delivery requirement for retail motor fuel devices with digital electronic indicators?
• What aspect of a wholesale measuring device affects its performance at varying temperatures?
• What functionality does a multiple tariff taximeter provide?
• What action should be taken when the pressure difference between a meter and prover increases from 10 psi to 25 psi while testing?
• What is the definition of a wet hose?
• What is the nominal temperature for cryogenic liquids?
• What must concentrated natural gas motor fuel dispensers measure in terms of flow?
• How many feet are in one mile?
• What is a "master meter" in electricity distribution?
• What does the term 'interlock/zero set back' refer to?
• What is vapor pressure?
• What information must be included on a printed receipt ticket for an LPG meter?
• What causes vaporization within the pump/meter of an LPG system?
• What is the acceptance tolerance for wholesale Agri-Chem liquids?
• When testing a loading rack meter with a maximum marked discharge of 1500 gpm, at what discharge rate must a special test be conducted if the product is diesel fuel?
• What happens to the liquid in the delivery line upon completing the delivery of metered cryogenic liquid?
• What are dry measures primarily designed for?
• Which of the following must be included on an electric meter badge?
• What is the maximum number of dip pipes allowed on a vehicle-mounted LPG tank?
• Which of the following are top builders of electric meters?
• What must all three-phase self-contained meter installations be equipped with for safe meter reading?
• What is the minimum discharge rate for stationary retail LPG, as stated in the guidelines?
• What type of requirements are printed in italic type in Handbook 44?
• What is the inspection frequency for LPG and/or cryogenic meters?
• What is the temperature range for electric metering components if it is not stated on the device?