PCI Level I and II Certification Practice Test

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• Which of the following conditions in strands would require them to be discarded?
• Once low-hydrogen welding electrodes are opened, how should they be stored?
• If strand is tensioned during a hot afternoon and lower temperature concrete is poured on it, what is the expected effect?
• HRWR is also known as what?
• Which test method does ASTM C173 describe?
• What is the minimum angle between the lifting line and the horizontal that is allowed?
• What is one of the primary concerns related to welding heat on bent bars?
• What is the water that rises to the surface of freshly placed concrete called?
• What is ASTM C31/C31M used for?
• When is it necessary to refer to shop drawings during lifting operations?
• Low-hydrogen welding electrodes must be stored in what type of containers?
• What does the QSM stand for in the context of standards?
• Which type of cement is characterized by low heat of hydration?
• What condition describes two parallel edges of a panel being in the same plane while the portions between are out of plane?
• What does ASTM A775 refer to in construction?
• Is vibration required for Self-Consolidating Concrete (SCC) when properly placed?
• After test cylinders are made, they should be stored at what temperature?
• A plant that produces only precast products must have certified personnel in which category?
• For a mix design requiring 1200 lb of fine aggregate at SSD with 2.5% free moisture, what amount needs to be weighed?
• What does ASTM A416 specify?
• What is ASTM C979 primarily concerned with?
• What method would you use to measure the air content of freshly mixed concrete?
• Which term describes aggregates that almost entirely pass through the #4 sieve and are largely retained on the #200 sieve?
• Many types of insulation must be used within which temperature range?
• What does HRWR stand for in concrete technology?
• Which ASTM standard specifies sheet materials used for curing concrete?
• For thermal adjustments, by how much should the jacking force be increased for every 10 degrees rise in temperature?
• What is the ideal temperature for mixing concrete?
• What does "tensioning force" refer to in basic elongation calculations?
• Gradation tests for aggregates should be conducted how frequently?
• What is the term for the increase in length of prestressing steel when an applied prestressing force is used?
• If a mix design requires 1700 lb of coarse aggregate at SSD with 0.9% moisture absorption, what amount needs to be weighed?
• What is an acceptable condition for broken 7 wire strands?
• In structural engineering, what is the significance of the modulus of elasticity?
• Which property is most directly assessed by the slump test?
• Why is it important to maintain the stipulated minimum angle for lifting lines?
• What is the role of drying ovens in the storage of certain electrodes?
• What does VMA stand for in the context of concrete?
• What is the correct method of disposing of wet electrodes?
• What density is typically associated with Lightweight (LWT) concrete?
• Epoxy coated bars should be stored to avoid exposure to what?
• Which method is used to determine if a concrete care aggregate is suitable for use?
• Viscosity is defined as what?
• What type of cement would be least appropriate for environments with high temperatures during hydration?
• What standard does ASTM C1064 set forth?
• What does a tail in a welding symbol indicate?
• What is the maximum calibration interval for water measuring equipment?
• What are coarse aggregates?
• What should be done if production personnel need access to QC areas?
• Portable or municipal water used in batching is required to be tested annually according to the guidelines. True or False?
• What does ASTM C578 specify?
• Electrodes that are not low-hydrogen must be stored at which temperature condition?
• What is the maximum temperature increase allowed per hour for concrete after the initial set?
• Concrete heating method after initial set should not exceed what temperature increase per hour?
• What is the primary function of a tail in a welding symbol?
• What effect does free moisture have on the amount of fine aggregate needed in a mix?
• What does PCI stand for in the context of certification for personnel?
• The yield strength of a strand is what percentage of its ultimate strength?
• What is the maximum allowable percentage of water-soluble chlorine ion by weight of cement?
• What is the designation for high early strength cement?
• What does WPS stand for in welding specifications?
• What kind of personnel is typically allowed in a QC area?
• What does workability refer to in the context of concrete?
• Settlement in concrete refers to what condition related to aggregates?
• Which of the following can result from inaccurate tensioning in concrete?
• What does the weld symbol on both sides of the line indicate?
• What is the primary purpose of debonding in concrete construction?
• What is the recommended load rate for cylinders during compression?
• What does ASTM stand for?
• What is the formula for calculating mixing time for concrete?
• What does ASTM C138 cover?
• What issues can result from uneven settling of dunnage?
• What is the finish of concrete cast without forms called?
• How many times the radius of action should the distance be between each internal vibrator insertion?
• What does SMAW stand for in welding terminology?
• If the sand moisture increases from 4% to 8%, what will happen to the mixture if the batch quantities remain unchanged?
• Which of the following is NOT a heat source for accelerated curing?
• During tensioning operations, what temperature difference must be considered according to standards?
• What type of cement is most recommended for products that need to be released from the bed sooner?
• What is the primary use of a bond breaker in concrete applications?
• What term describes the shortening or camber change resulting from sustained compression loading over time?
• Welding below what temperature requires the use of preheating procedures?
• What is the consequence of not following the minimum angle requirements for lifting lines?
• What does SCC stand for in concrete terminology?
• What happens to strand tensioned during cool morning temperatures when higher temperature concrete is poured on it?
• In terms of aggregate properties, what is a problem that may lead to a poor concrete mix?
• What is the typical range of alkali content for low-alkali cement?
• Are regular and epoxy coated bars required to be covered during storage?
• Well water used for batching must be tested how often?
• Given specific parameters, what is the basic elongation calculated using e = (PL)/(AE) with an initial force of 2000 lb and final force of 16000 lb?
• When releasing chucks, what materials must be used if striking?
• In the context of welding, what is one potential outcome of excessive heat exposure on materials?
• What is the acceptable variation in water-cement ratio during concrete production?
• What type of damage can occur if internal vibrators are not suitable for epoxy coated rebar?
• Epoxy coated rebar with damage exceeding what size must be repaired?
• What type of admixtures does ASTM C494 address?
• What is the water to cement ratio of a mix containing 725 lb of cement, 80 lb of fly ash, and 285 lb of water?
• For accurate gauge operation in stressing jacks, what percentage of full scale capacity should they be operated within?
• What constitutes grout in construction?
• What temperature must be monitored during accelerated curing of concrete?
• What is the purpose of the consolidation process in concrete mixing?
• What are granular materials mixed with a cementing medium to create concrete referred to as?
• Which internal force is experienced at the top of a loaded beam?
• What should be done to account for the addition of water from fine aggregates in a concrete mix?
• What is the term used to describe a portion of concrete containing only cement and fine aggregates?
• What does post-tensioning refer to in concrete construction?
• What is the minimum and maximum initial force for strand jacking of the final tensioning force?
• What outcomes are considered when prestressing a beam?
• Low-alkali cement must have an alkali content of less than what percentage?
• Which unit is commonly used to define the diameter of strands in construction?
• What is described by AWS D1.1?
• What happens to the water added to the mix after moisture adjustments if the initial water was 290 lb?
• How many studs need to be bend tested and visually inspected at the beginning of production?
• Which statement is true regarding the access of production personnel to the QC area?
• Which of the following options describes the yield strength of a strand in relation to its ultimate strength?
• How much overlap is required for welded wire fabric (WWF)?
• Which component is NOT typically found in a standard grout mixture?
• What is the typical maximum curing temperature for accelerated concrete?
• In multiple strand tensioning, strand-splice must be used for what scenarios?
• Which curing method utilizes electric heat for accelerated curing of concrete?
• How often should gradation tests be done on coarse aggregates?
• What should be done with electrodes that get wet?
• What is the maximum allowable water-cement ratio for concrete production?
• What does the modulus of elasticity represent in engineering?
• What is the main benefit of using high range water reducers in concrete mixes?
• Which of the following parameters affects the elongation of a strand?
• What is bleed water primarily a result of?
• What is the primary purpose of using accelerating admixtures in concrete?
• How much should the deviation between applied force and measured elongation not exceed during tensioning?
• Which ASTM designation pertains to galvanized bars bent according to the specifications?
• Which types of shop drawings are recognized?
• What is the accuracy requirement for gauges in the lower range of their capacity?
• A circle at the joint in a welding symbol signifies what?
• With what material must epoxy coated rebar be tied?
• What is the acceptable accuracy percentage for calibration of gauges in the upper range?
• Why is Calcium Chloride generally not permitted in admixtures?
• The term “freshly mixed concrete” refers to which state of concrete?
• What is the term for the finish of concrete cast directly against a form?
• What does ASTM C231 evaluate?
• What does ACR stand for in concrete technology?
• What is the required conforming standard for fine and coarse aggregates?
• The acceptable spacing for WWF should be within which measurement?
• Basic elongation considers which of the following elements?
• Which ASTM standard evaluates SCC's ability to pass through a simulated reinforcing cage?
• What is the consequence of having an inaccurate gauging system in a stressing jack?
• What does ASTM C403 determine?
• Bar cover is equal to how many times the size of the aggregate?
• What aspect of concrete does ASTM C1064 measure?
• What do fine aggregates refer to in the context of concrete?
• What effect does tensioning in different temperature conditions have on strand performance?
• At what percentage do strand barrels need to meet the strength requirement compared to ultimate strength?
• How many studs need to be bend tested and visually inspected every hour during production?
• What does ASR stand for in construction terminology?
• What does the term SSD stand for in concrete terminology?
• What is the average number of cylinders used to determine the release strength of concrete?
• What are the approximate average densities for NWT, SLWT, and LWT concrete?
• Which test is designated as ASTM C1611?
• How many strand splices are permitted per strand?
• What is the primary focus of Quality Control in a production setting?
• When measuring elongation, what is the minimum and exact measurement required?
• Flammable or combustible materials should be stored per which guideline?
• Lightweight concrete must conform to which ASTM standard?
• Which type of cement is recommended for dam construction to minimize hydration heat?
• What is the free moisture content for the provided aggregate weights: SSD= 1350g, Dry= 1300g, Wet=1400g?
• What is the importance of measuring the elongation in tensioning operations?
• What must dimensional tolerance limits on forms be in relation to the final product tolerance?
• Materials that have minimal cementitious properties but chemically react with calcium hydroxide to form compounds with cementitious properties are referred to as?
• Which type of cement is known as a moderate Sulphur resistant cement?
• What is meant by the term 'compaction' in concrete?
• If a welded unit fails inspection, what percentage of welds needs to be tested thereafter?
• What is the purpose of TM-103 in relation to concrete?
• In the context of lifting operations, what should be referenced to confirm the required angle specifications?
• What is the significance of measuring diagonal dimensions in rectangular forms?
• What does a continuous weld around a joint ensure?
• Before welding ASTM A615, A616, A617 reinforcement, what is a crucial factor to determine?
• What is not a consideration when determining the size of coarse aggregate?
• Which specification governs the quality of prestressing strand in concrete?
• How much calcium chloride is allowed in accelerating admixtures?
• Which of the following best describes the role of QC personnel?
• Concrete is considered to have set after reaching what compressive strength?
• What is considered the minimum water-cement ratio for proper hydration in traditional mixtures?
• Near what materials is welding not permitted in concrete construction?
• What happens to water levels when the moisture content of sand increases while keeping batch quantities constant?
• A beam that is prestressed at the lower portion experiences what internal forces at the top and bottom?
• What should be prioritized in the storage of flammable materials?
• What is another term for the plan view?
• What is the recommended distance between each internal vibrator insertion relative to its radius of action?
• What is the water to cementitious ratio for the same mix described above?
• What should be considered when using internal vibrators in concrete work?
• In welding standards, how often should 1 stud be tested during full production runs?
• What is an implied benefit of having a defined standard for the angle of lifting lines?
• What is the primary function of Dunnage in concrete storage?
• The characteristic of pitting on strands indicates what?
• What is the focus of ASTM C172?
• For a plant producing deflected or harped strand prestressed products, personnel must be certified at what level?
• What is general purpose cement with no special properties called?
• What is the primary purpose of calibrating batch plant scales?
• What kind of properties does Self-Consolidating Concrete (SCC) exhibit?
• Why is it critical to know the moisture content of aggregates?
• What happens to the density of freshly mixed concrete during consolidation?
• Which component is not typically included in an admixture?
• What is the formula for calculating the absorption percentage of aggregate given the specific weights?
• What does "basic elongation" essentially measure in strand applications?
• In measuring the squareness of a rectangular or square form, which dimension should be measured?
• What type of cement offers high resistance to sulfur?
• What is required to ensure the quality of welds during production?
• Weld defects above what percentage may indicate a systemic problem?
• In concrete terminology, what does the term "batch" refer to?
• What is another name for zero slump concrete?
• How often should all batch plant scales be calibrated?
• According to PCI and AASHTO specifications, the maximum jacking force applied to a strand should not exceed what percentage of its ultimate strength?
• What does ASTM C143 standard test method measure?
• A loaded beam experiences which internal forces at the top and which at the bottom?
• Architectural products have what exemption when trying to achieve a specific finish?
• What is the required accuracy percentage for the gauging system of a stressing jack in indicating the force?
• What is the role of aggregates in concrete?
• What is the variation allowed in fineness modulus between gradations for fine aggregates?
• What can cause plastic shrinkage cracking in concrete?
• The symbol for a fillet weld is represented by what shape?
• What is the term for the tendency of coarse aggregates to separate from finer particles during handling?
• How many welds should be visually inspected in welded assemblies?
• What is the primary goal of using curing compounds in concrete?
• How does maintaining proper angles in lifting operations impact production?
• In the context of strand tensioning, a single strand is exempt from what?
• Which standard must regular cements conform to?
• Strand barrels must withstand at least what percentage of the strand's ultimate strength?
• Why is moisture content crucial in mix designs for concrete?
• How must reinforcement steel be stored to avoid direct contact with the ground?
• What does a combination of corrosion-inhibiting admixtures promote?
• If fine aggregate has a dry weight of 300g and a wet weight of 302g, what is the moisture content percentage?
• What is the acceptable tolerance for applied force during tensioning operations?
• In terms of safety standards, why is the angle between lifting lines significant?
• What is typically the minimum bar cover in concrete structures for environmental protection?
• What should the measured elongation be within during tensioning operations?
• What is the maximum size of coarse aggregate in relation to the member's cross-section?
• At what temperature is welding not allowed?
• When bars are bent, what phenomenon can occur if subjected to excessive heat within 2 inches?
• At what distance should architectural panel appearance be evaluated?
• A flag included in a welding symbol represents what?
• What type of heads should internal vibrators have when used with epoxy coated rebar?
• What is a bond breaker?
• To assess the design or 28-day strength of concrete, the average of how many cylinders is considered?
• What does the abbreviation 'QC' stand for in a production context?
• What does the number on the left side of a weld symbol indicate?
• What is the significance of a low-relaxation strand in post-tensioning applications?
• What contributes to the process of plastic shrinkage cracking in concrete?
• How should internal vibrators be permitted to sink in concrete?
• How often should gradation tests be conducted for fine aggregates?
• What does ASTM A706 specify about reinforcing steel?
• What percentage of the 28-day strength does the 7-day strength typically represent?
• What is the fineness modulus range for fine aggregates in structural products to conform to ASTM C33?
• What are the materials used for keeping concrete elements from touching each other during storage called?
• The maximum percentage of weld defects allowed in WWF is?
• Which of the following methods is NOT used in the process of compaction?
• What essential aspect should be ensured before lifting an object?
• What does the number on the right side of a weld symbol signify?
• At what intervals should accelerated curing temperatures be monitored along a long line bed?
• What does PCI MNL-130 refer to?
• What is pretensioning in concrete construction?
• What is an admixture in the context of concrete?
• What is the minimum percentage of ultimate strength that strand jaws must withstand?
• A plant producing straight strand prestressed products requires which level of certified personnel?
• What type of aggregate is retained on the #4 sieve?
• What could happen if the elongation is not measured correctly, particularly if the bed length is more than 50'?
• How frequently should fine aggregate be checked for weight consistency?