California Pipeline Contractor (C-34 License) Practice Exam

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• What is the main purpose of reviewing project plans and specifications before beginning a C-34 pipeline installation?
• When shoring a trench with screw jacks, the minimum crew required to set the jack screws is:
• Type DWV copper tube is marked with which stripe color?
• For shoring a trench with screw jacks, how many crew members are needed to set the jack screws?
• If trench walls are too loose or soft for shoring, the walls must be sloped a minimum of:
• Which stripe color identifies Type L copper tube?
• Which regulatory considerations are important for environmental protection during pipeline work in California?
• In pipeline operations, what is a 'pig' used for?
• In irrigation PVC installations, which Schedule is used on the discharge side of control valves?
• When running sewer laterals from the main, you set the fittings away from the trenching operation. This procedure is:
• Granular bedding serves which primary purpose in pipe installations?
• Which material is commonly used for potable water distribution and is a rigid plastic?
• Shoring is required for excavations with a minimum depth of:
• When welding an oil pipeline in temperatures below freezing, the ends should be preheated to which range?
• Which practice helps control dust and sediment during trench work?
• What is the longest length of horizontal drainage pipe allowed before a cleanout is required?
• Solvent cement set time before handling PVC joints is at least how long?
• What minimum horizontal distance is required between a domestic water well and a drainage line?
• Why does natural gas have an odor?
• Which material is heaviest to place on top of a pipe?
• What is the purpose of backflow prevention devices in water pipelines?
• What is a typical method for joining HDPE pipe in the field?
• Name two typical coatings used on underground steel pipelines.
• Which statement about measurement of sewer pipe for payment is not true according to CALTRANS specifications?
• Which utility line typically does not require fine grading?
• Which material would you use as initial backfill for asbestos cement pipe?
• Using a load factor of 50%, how many 10-yard dump truck loads are required to export 6 inches of paving removed from a 120 ft by 4 ft trench?
• What is hydrostatic testing and what does it verify?
• How much aggregate backfill would be used for a 3' x 5' x 4,000' trench with a 1 inch diameter pipe?
• A post indicator valve for a private fire service main must be located at least how far from a building?
• When welding an oil pipeline and the temperature is below 32 °F, the pipe ends should be preheated to:
• How many gallons can a 12-inch diameter, 500-foot long pipe hold?
• The discovery of metal corrosion cells is attributed to which scientist?
• What is the typical sequence for installing a new pipeline near an existing utility corridor?
• In gravity sewer line installation using a solid coupling pipe, on which end should the coupling be attached?
• Among compaction tests, which is oldest and most accurate?
• What is a common method for testing a gas line prior to service?
• PVC (PSM) sewer pipe must be marked with the manufacturer's name or trademark, nominal pipe size, and other identifying information at intervals of ___ feet or less.
• What is the purpose of backfilling around water mains and services?
• What key element should be included in an 'as-built' record for a pipeline project?
• Shoring is required for excavations with a minimum depth of:
• What is a "change order" in construction contracts?
• What is the role of a pre-construction meeting?
• Under what condition might concrete encasement be required for steel pipelines?
• On oil pipeline projects, direct operating costs represent which items?
• What system is not a type of bituminous pipe coating?
• What governs deflection and alignment limits for pipeline joints?
• What is the cleanest, easiest, cheapest way to test a sanitary sewer main or service?
• Which type of test is most commonly used to verify the integrity of a newly installed pipeline before backfilling?
• What is the purpose of trench shoring or shielding?
• What is the purpose of material traceability on a pipeline project?
• Which material is the heaviest type of earth to put on top of a pipe?
• What is the minimum pipe size for a fire service?
• Which set of specifications is correct? Cement per cubic yard, water per gallon, ladder projection, and cleanout angle are:
• What is the purpose of bedding material under installed pipe?
• The ends of an abandoned sewer pipe may be capped with a brick wall at least how thick?
• When replacing pavement over a trench, what is meant by 'overcutting'?
• During installation, what is a typical requirement for pipe alignment and grade?
• Where is a thrust block typically located in a piping system?
• Which hazard is addressed by permit-required confined space entry?
• How do you adapt plastic to cast-iron bell and spigot?
• When installing filter fabric over and under perforated pipes to keep soil from plugging the holes, with adjacent rolls overlapped by 18 inches and gravel along the fabric edges to prevent wind, you have proceeded:
• Which drawings document the actual constructed configuration?
• If 60 gallons per minute flow passes through a 1-1/2 inch pipe, what is the flow in gallons per minute through a 3 inch pipe?
• What is a typical acceptance criterion for a hydrostatic test?
• What document typically governs the allowable deflection and alignment tolerances for pipeline installations?
• According to CALTRANS specifications, how many pounds of Portland cement should be used for one cubic yard of Class A concrete?
• Which Portland cement designation may be used for porous concrete pipe?
• What is the purpose of running a swab through each pipe length prior to welding?
• Which documents provide the allowable tolerances and material requirements for pipeline installations?
• Which is the most efficient trenching equipment?
• The tip of an oxyacetylene cutting torch should be held at what angle when cutting cast iron?
• According to CALTRANS specifications, no pipe may project more than how many inches into a manhole?
• In hydraulic jack fluid mixing, how much water is used with one quart of hydraulic fluid?
• The crane signalman signals by tapping his right elbow with his left hand. This means:
• In a disposal field drain installation, if the invert of the inlet is placed 1 inch above the outlets, you have proceeded:
• The fastest and most efficient way of laying sewer pipe with screw type rubber couplings involves how many workers in the ditch?
• Which wage requirement may apply to California public works contracts?
• How much does a gallon of water weigh?
• What is the purpose of installing a bypass when working near an existing utility corridor?
• What is the maximum spacing of shores for 2" thick sheeting or lagging when nonstress grade lumber is used?
• What safety practice is essential when working in an open trench?
• According to the UPC, the maximum distance between manholes may not exceed?
• Of the following drainage pipe joints, which classification has the most tensile strength?
• What is the minimum clearance above ground for galvanized pipe?
• What is a common specification for protecting steel pipelines in soil—to prevent corrosion?
• What is the volume in cubic yards of material removed from a trench measuring 120 ft by 4 ft with a removal depth of 6 inches?
• For long HDPE pipelines, which joint method is commonly used to minimize the number of joints?
• What is the typical purpose of hydrostatic pressure testing on a new pipeline before backfilling?
• What type of copper tube is marked with a blue stripe?
• Two cubic feet of water contain how many gallons?
• In trenching, what soil description demands the use of a trench box or sloping to prevent cave-ins?
• Which type of copper tube is marked with a red stripe?
• In preparing to weld pipe for an oil pipeline, the described sequence ends with clamps installed after the pipe ends are aligned. This procedure is:
• Which of the following statements is true about ABS sewer pipe?
• Which statement about solvent cement joints is incorrect?
• In the caulking example, to what depth should the joint be filled with lead?
• In the given example, the 60 gallons per minute flow is associated with which pipe diameter?
• ABS sewer pipe is sold by which unit?
• What is the permitted leakage per 24 hours when testing a 1 inch pipe 1,000 feet long?
• For pipe installations in dense soils or sandy soils, what is the typical bedding material?
• Exposed gas piping must be kept at least how many inches above grade?
• A 1/8 bend in pipe fittings corresponds to how many degrees?
• As-built drawings document which aspect of a pipeline project?
• What is the importance of 'as-built drawings' after project completion?
• If the depth of the street sewer prevents a uniform slope of 1/4 inch per foot for a 6-inch building sewer, what slope may be allowed with special permission?
• In HDPE piping, which method is commonly used specifically for tees?
• What is the role of mechanical joint restraints in ductile iron installations?
• Right-of-way agreements usually provide that the oil pipeline contractor may:
• During excavation, how far from the trench edge should excavated spoils be deposited?
• How many gallons are in a cubic foot of water?
• Which stripe color identifies DWV copper tube?
• What is a 'service connection' in pipeline projects?
• Building sewer cleanouts must be installed at intervals not to exceed how many feet in straight runs?
• How much soil will you have to excavate for a ditch that is 5' wide, 3' deep, and 3,600' long?
• What method should be used to install electrical and telephone conduits in the same trench?
• The ends of an abandoned sewer pipe may be capped with a brick wall at least ___ thick with cement mortar joints.
• In a trench where a nonmetallic sewer line and a water service pipe are installed together, placing the water pipe on a shelf so that its bottom is 12 inches above the sewer line indicates you have proceeded:
• When PVC pipe is used for irrigation systems, which schedules must be used on the discharge sides and the supply sides of control valves?
• Which material is commonly used for potable water distribution and is known for being flexible and easy to install?
• The not a bituminous pipe coating system among the following options is:
• Solvent cement used to join PVC pipe and fittings should be allowed to set for at least ___ before handling.
• The crane signalman signals by clasping both hands in front of his body. This means:
• In pipeline operations, which tool is used to remove liquids or separate gas pockets?
• Before trenching when coordinating with other utilities, what is the critical step?
• What is the purpose of compaction testing for backfill?
• What is the primary purpose of a hydrostatic test in pipelines?
• What is the purpose of using a line locator or potholing before excavation?
• How soon after a manhole bottom is poured can you break out any laterals?
• PVC (PSM) sewer pipe markings must appear at intervals of no more than five feet. Which option best expresses this requirement?
• How should confined space entry be handled on a pipeline job site?
• Which pipeline does not require fine grading?
• In the joint band example for a 60" pipe, what is the stated pipe diameter?
• Which organization provides standards for ductile iron and steel pipe joints commonly used in pipelines?
• Cleanouts for building sewers should be installed on any turn that is more than how many degrees?
• When installing 60" concrete drain pipe, you apply a band approximately 7" wide and 1/2" thick. Then you smooth the band with a damp brush. You have proceeded:
• The cross-sectional area of a trench that is 5 feet wide and 3 feet deep is:
• Which step helps ensure that backfilled trench features do not settle over time?
• Abandoned sewers must be capped off within how many feet of the property line?
• What is the maximum horizontal drainage run length before a cleanout is required?
• Of the following, the heaviest copper pipe is:
• You are joining PVC pipe and fittings with solvent cement using an applicator that is half the diameter of the pipe. The applicator is left in the cement between applications. After each assembly, excess cement is wiped from the pipe at the end of the fitting socket. You are proceeding:
• What is the purpose of erosion control devices during trench work?
• Hydrants must have at least a ___ inch connection with the mains.
• According to the STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION, a ladder installed in a 4-foot-deep trench should project how many inches above the top of the trench?
• In the typical installation sequence, which step comes after laying the pipe and before surface restoration?
• PPE stands for, and which of the following are examples in pipeline work?
• What element is used as a coating on galvanized pipe?
• Which tool will not be needed when laying sewer lines that are hubbed together?
• What is the primary purpose of calibrating flow meters in a water pipeline system?
• What is critical when performing a welding operation on steel pipe in the field?
• Which statement about hydraulic shoring is not true?
• Which combination of statements is true regarding water weight, tensile strength, backfill material, and welding preheat?
• With special permission, the slope for a 6-inch building sewer may range from 1/4 inch per foot to 1/8 inch per foot. Which expression best describes this range?
• Which statement describes the essential elements of a proper welding program for field joints?
• Which wage schedule may apply to California public works contracts?
• Which copper tube type is the heaviest?
• One method to minimize disruption to surface traffic during pipeline installation?
• During pipe preparation, when should clamps be installed?
• Which statement correctly contrasts installation handling for PVC and ductile iron pipe?
• The maximum spacing between shores for 2 inch thick sheeting with nonstress grade lumber is:
• What is the primary purpose of obtaining utility permits before pipe installation?
• Which of the following sets includes three common pipe materials used in potable water distribution that a C-34 contractor would install?
• In the joint band example, what is the width of the band applied?
• Which statement best describes the difference between shop drawings and as-built drawings?
• Which statement best describes essential considerations when crossing a pipeline under a road or railway?
• Which of the following is a common trench backfill requirement after pipe installation?
• You are caulking joints for cast iron bell- and spigot soil pipe. You pack the joint with oakum using a caulking iron. You heat the lead to 680 °F , allow it to cool for five minutes, and then fill the joint with lead to a depth of 1/4". You have proceeded:
• Which type of material would you use as initial backfill for asbestos cement pipe?
• If you mix 2 quarts of hydraulic jack fluid, how many gallons of water are required?
• What kind of coating or coating protection is commonly specified for steel pipelines exposed to soil?
• When laying a gravity flow sewer line, you should check each pipe for its what as it is laid?
• What is the function of valves installed along a pipeline?
• The maximum grade for drain lines in a disposal field is ___ per 100 feet.
• Who typically approves a change order?
• What is bedding in trenching?
• Who discovered metal corrosion cells, which have been largely eliminated in modern pipelines?
• Which drainage pipe joint classification has the most tensile strength?
• Which joint type is commonly used with ductile iron pipe?
• In the caulking example, at what temperature should the lead be heated?
• Which material is widely recognized for its high strength and durability in piping applications?
• Which of the following is a proper practice for solvent cement joints?
• Who typically prepares shop drawings?
• Which test is the oldest method for compaction?
• When laying cement-joint pipe and plastic cement is used, how much mortar cream is needed?
• For porous concrete pipe, which type of Portland cement may be used?
• Which is a CORRECT statement about trenching?
• What is the primary use of an as-built record after pipeline construction?
• Which type of documentation is typically required to prove that proper materials were used and installed according to code?
• When laying bell-and-spigot sewer pipe, the bell should face which direction?
• What is a thrust block and when is it used?
• When water testing a section of pipe between manholes:
• Galvanized wrought iron or galvanized steel pipe must be kept at least how many inches above ground?
• What tool is used to buff the beveled edges during pipe end preparation?
• For a 1 inch pipe 1,000 feet long, would a leakage of 150 gallons per 24 hours be acceptable?