Materials Engineer Accreditation Practice Exam

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• What is the purpose of a Slump Test in concrete evaluation?
• In asphalt testing, what does the penetration test correspond to in the context of cement?
• What role does the slump test serve in concrete testing?
• In construction materials testing, what does CBR stand for?
• What is the slump of the concrete if the measured height is 178 mm?
• What is the minimum time for the removal of forms and falsework under girders and beams typically set at?
• Which class of concrete is used in thin reinforced sections, railings, and pre-cast piles?
• At what size should samples for G.I. sheets be taken in relation to total sheets?
• For 15,000 kg of RSB, how many samples should be submitted for Quality Test?
• In particle size distribution tests, what property is being analyzed?
• What is the main purpose of a quality control plan in construction?
• What is the defining property of the material known as asphalt?
• What is the primary difference between hygroscopic moisture content and natural moisture content?
• If a concrete pavement is to be paved at a rate of 200 ln.m at half width per paving day, how many sets of concrete beam samples will be required for A = 115,000 sq.m, width = 6.50 m, and thickness = 230 mm?
• What is used to evaluate the performance quality of soil as a highway subgrade material?
• If the wet density of soil is 2,200 kg/m3 and the maximum dry density is 1,960 kg/m3, what is the degree of compaction?
• What is Item 311 of the DPWH Specification commonly referred to as?
• The minimum cement factor for concrete Class "A" is 9 bags/cu.m, how many bags are required for concrete Class "B"?
• Under what climatic condition is it advisable to use lower penetration grade or hard asphalt?
• What measurement is critical for ensuring the quality of fresh concrete during the slump test?
• What is the moisture content of soil if its original weight is 162.5 grams and the oven-dried weight is 138.2 grams?
• What is the required mixing ratio of mortar for Item 505?
• What is the acceptable range of asphalt content if the tolerance is 0.4% applied to an asphalt content of 5.10%?
• Which class of concrete is often utilized for filler in steel grid floors?
• In the context of asphalt testing, which aspect does a spot test evaluate?
• What is one reason for performing a compressive strength test on concrete?
• What is included in the Materials Quality Control Monthly Reports?
• What is the minimum time for the removal of forms and false works for beams and all other vertical surfaces?
• What is essential for managing construction materials effectively on a project?
• What is the maximum size of aggregate for item 300?
• Which specification is required for the flexural testing of concrete?
• Which item number corresponds to reflectorized thermoplastic pavement markings?
• Which characteristic defines the mass percent of air voids in Item 310?
• What is the primary concern of a Materials Engineer regarding construction materials?
• Which test is used to determine the consistency of concrete?
• If the group index of soil is high, what does this indicate?
• Which term refers to the ratio of the weight of water to the weight of solids?
• After how many hours should molds be removed from specimens that are not to be transported?
• Which class of concrete is specifically deposited in water?
• What is the standard height for dropping concrete to the point of deposit?
• What is commonly referred to as hot asphalt or penetration grade asphalt?
• How many grading tests are required for a selected borrow topping of 3,200 cu.m?
• For concrete Class "C," what is the minimum compressive strength?
• When measuring the thickness of an asphalt core using a caliper, how many measurements should be taken?
• What is a common tool used for measuring the plastic limit of soil?
• What is the minimum distance structures should be laid above an underground drainage conduit?
• Which class of concrete is characterized by having only a small amount of reinforcement?
• What does the slump test of concrete NOT determine?
• What is the function of a superplasticizer in concrete mixtures?
• What is the maximum thickness layer for compaction of an embankment?
• What is the maximum time a vibrator should be inserted in a concrete mix?
• Which of the following represents appropriate testing procedures for asphalt quality assurance?
• Class B stones for riprap should weigh between what range?
• What sieve should samples for liquid limit and plastic limit tests pass through?
• Which of the following is NOT a property of concrete?
• How many samples should be taken for every 75 cubic meters of fresh concrete?
• What test is used to check the gradation of composite aggregates in an asphalt mix?
• What determines the reflectance property of certain paints?
• What is the penetration grade of blown asphalt?
• An embankment having a PI of 30%, LL of 40% and GI of 0, what is the degree of compaction for this kind of soil?
• How can a Materials Engineer ascertain that a sample placed in the oven is fully oven-dried?
• How many samples are needed for the quality test of concrete masonry?
• How is the soil classification affected by the group index?
• How many quality test samples are required if 60 tons of Bituminous Prime Coat is to be used?
• What is the typical rate of application for a bituminous tack coat?
• Item 310 specifies that the mass percent of air voids should be in what range?
• When sampling concrete with a bean mold measuring 6" x 6" x 20", how many blows per layer must be applied?
• In an asphalt mix weighing 3,020g, with aggregate weighing 2,865.98g, what is the percentage of asphalt by weight of the mix?
• What is the term for a mass of solid reinforced concrete cast around the head of a group of piles?
• What is the Sieve designation standard (in mm) equivalent to the alternate US standard for 0.425 mm?
• Which type of asphalt is specifically used for sealing weakened plane joints in concrete pavement?
• For Item 300, what is the design thickness tolerance allowed?
• Which tests are needed for the item classified as Aggregate Base Course?
• According to the Third-Point Method, the flexural strength for a concrete beam sample tested in 14 days should be?
• How many concrete cores should be taken for one kilometer of concrete pavement?
• In construction specifications, a variance in material thickness should be documented to maintain which aspect of engineering integrity?
• Which stone class of riprap has a maximum weight of 100 kgs?
• How often should a Quality Control Assurance Report be submitted?
• Which material's specification is determined by mass percent of wear test results?
• How can the degree of compaction of Items 104, 200, and 201 be determined?
• When can the road be opened to traffic after concrete placement?
• What is the rate of revolution per minute of the abrasion machine used for testing mass percent of wear?
• A high plasticity index indicates a soil with what characteristic?
• A 10 kg sample of cement represents how many bags?
• What is the maximum depth of roadway embankment per horizontal layer in loose measurement?
• What does the plasticity index measure in soil?
• For a 1 cu.m Class "A" concrete mix, what are the actual batch weights?
• Which material is commonly used for Bituminous Prime Coat?
• For the Moisture-Density Relation Test (MDR) specified as T - 180, what is the required weight of the compaction rammer?
• Which device is used in testing for the liquid limit test?
• If heavy rains occurred before a scheduled field density test, what should be done?
• For Class D riprap, what is the maximum weight of the stones?
• What is the specified size of the tamping rod used in tamping concrete samples?
• What is the required maximum liquid limit for Item 300?
• How long should a bituminous prime coat be left undisturbed?
• How many layers should a 40 cm thick Aggregate Base Course be placed in?
• What class of concrete is typically employed in pre-stressed concrete structures?
• Which test determines the compactness of asphalt samples?
• What is the required action when concrete test data shows unsatisfactory strength or consistency?
• What is the term for the ratio of the volume of voids to the volume of solids?
• For sieve analysis of the same Aggregate Sub-base course, how many samples should be submitted?
• Which of the following is NOT a significance of the liquid limit?
• What is the minimum price allowed for a contract when there is a deficiency in concrete strength between 10% to less than 15%?
• What are other terms often used for sieve analysis?
• When should a Materials Engineer start sampling and testing aggregates?
• What does a CBR test primarily assess in road construction?
• In roadway construction, which factor does NOT determine the economical thickness of subgrade?
• What type of paint features reflectance or beads?
• What machine is primarily used for conducting abrasion tests?
• What class of stones for riprap ranges from 15 kgs to a maximum of 25 kgs with at least 50% weighing more than 20 kgs?
• What is the importance of the 70% design strength criterion in concrete formwork removal?
• What aspect relates to the construction of transverse construction joints?
• What is required length for a Rollable Sheet Barrier sample for quality tests?
• When should construction materials be tested by a Materials Engineer?
• What is the CBR requirement for Item 201?
• What type of dowel bars are to be used for PCCP?
• Which of the following is NOT a significance of grading tests?
• In classifying aggregates, what does the term 'item 300' refer to?
• What is the general purpose of a pile cap in construction?
• What is the minimum density requirement for fine aggregate used in concrete?
• What kind of sample is used for a flexural test?
• What percentage of wear does the material for Item 201 need to meet the DPWH specs?
• Which test result is used in the field density test for soil?
• What is the minimum time required for the removal of forms and false works for floor slabs, according to standard practices?
• After completing the final rolling of the Portland Cement Treated Plant Mix Base Course, what is the rate of application for the bituminous curing seal?
• What is the typical composition of paint by percentage?
• What is the required mixing ratio of mortar for Item 500?
• What action should a materials engineer take if the materials for Item 200 are too fine?
• If slag is used as coarse aggregate for Item 311, what is the minimum density required?
• Who is responsible for quality control testing in a DPWH project?
• What is one of the important aspects included in the class A concrete structure?
• What is the required plasticity index range on Item 300?
• What formula is used to obtain the value of PI?
• What is the minimum percentage of design strength recommended for removal of forms under girders?
• In Item 303, at what rate should cover aggregates be evenly spread over the surface?
• Why do failed samples not always indicate a defective structure?
• If 315 pails of flat wall enamel paint are being used in a project, how many pails should be submitted for testing?
• If a soil is categorized as clayey, what common characteristic is it likely to exhibit?
• What is the permitted variation from the design thickness of the layer for Item 201?
• In a ductility test for asphalt, what test is used for cement?
• What is the purpose of the spot test on asphalt?
• What is the moisture content corresponding to 25 blows known as?
• For how many days should a CBR sample be soaked before testing?
• Which property of soil is indicated by the liquidity index?
• Where should additional cores be taken when a core measurement from pavement is deficient by more than 25 mm?
• Before the project starts, what program must the materials engineer have regarding testing samples?
• What temperature should be maintained when oven drying a sample for test?
• If a sample splitter is unavailable, what method can be used for reducing sample sizes?
• For how many days should a sample be soaked in water for the Immersion-Compression Test?
• What is the common name for the tag that includes details about a concrete sample?
• How many days minimum are required for the removal of forms and false works for walls?
• What is the target temperature to be maintained during curing after the initial curing period?
• What class of stones for riprap ranges from 100 kgs to a maximum of 200 kgs with at least 50% weighing more than 150 kgs?
• For measuring the thickness of a concrete core using a caliper, how many measurements should be performed?
• Which admixture is most suitable for heavily reinforced concrete structures using pumpcrete?
• How many compaction tests are required for Item 201 with a volume of 8,250 cu.m?
• What is the permitted variation from the design thickness of layer for Item 300?
• In project requirements for Item 201, how many CBR tests are needed for a volume of 10,000 cu.m?
• In a 1:2:4 concrete mix using a one bagger mixer, what is the approximate amount of water required?
• When the required thickness of Item 200 exceeds 150 mm, how should the aggregate sub-base be compacted?
• What is the maximum allowed curing time before testing concrete cylinders when temperatures are maintained between 63°F and 85°F?
• What is the sample used for determining compressive strength in structural concrete?
• What is the required size of test specimens for Galvanized Iron sheets?
• How long is the minimum curing time for wall forms before they can be removed?
• What is the typical percentage of solids in paint?
• For an Aggregate Sub-base course with a volume of 5,000 cu.m at a 15cm depth, how many samples are required for CBR testing?
• What is provided along the slope of high embankment as an erosion control measure?
• What does a high moisture content in soil typically indicate about the soil type?
• What type of material is measured by moisture content?
• What is the name of the joint constructed when there is an interruption of more than 30 minutes in the concreting operation?
• What parameter is critical for ensuring the proper hydration of cement in concrete mixes?
• Which of the following is NOT a significance of the plasticity index?
• What is the required percentage of stones to weigh more than 20 kgs in Class A riprap?
• What report must the materials engineer refer to for tracking the submission and testing of samples?
• What is the minimum soaked CBR value specified for Item 202?
• What is the maximum allowable percentage for LL of Item 201?
• What term describes the relative consistency of a cohesive soil in its natural state?
• What is the primary function of the Liquid Limit in soil testing?
• Why is it advisable to cool an oven-dried sample before weighing?
• The volume of concrete mixer per batch shall not exceed the mixer's nominal capacity, except for an overload of how many percent?
• In soil explorations for flood control design, which test is typically excluded?
• What is the minimum time required for the removal of forms and false works for columns?
• What is the function of a curing seal after the final rolling of a pavement layer?
• Class A concrete is typically used in what type of structures?
• What lead time should a Materials Engineer consider for quality testing of a cement sample?
• Which type of concrete marking is characterized as reflectorized thermoplastic?
• Which of these is NOT a type of cement typically used in construction?
• What is the range of sand size in terms of diameter?
• How should the consistency of a material like asphalt be verified during quality control?
• What is defined as the minimum moisture content at which soil can be molded without breaking?
• Which of the following limits are determined in Atterberg limits tests, except?
• What serves as the basis for the acceptance or rejection of construction materials?
• For an asphalt mix, how many samples should be taken during each full day's operation?
• What class of stones for riprap ranges from 60 kgs to a maximum of 100 kgs with at least 50% weighing more than 80 kgs?
• In a materials testing context, when is it important to conduct tests on materials?
• What is the minimum compressive strength for concrete Class "P"?
• What is the minimum variation of the surface from the testing edge of the straight edge allowable between contacts with the surface in Item 310?
• What is one duty of a Materials Engineer before commencing construction?
• What does the slump test primarily measure in fresh concrete?
• What is the use of blown asphalt?
• What is the purpose of the mixing procedure in concrete design?
• What apparatus is used in the plastic limit test?
• When conducting a sieve analysis, what factor is primarily being determined?
• Which class of concrete is commonly used in footings, pedestal, and gravity walls?
• What is the maximum size of stone for stone masonry?