MATERIALS QUALITY CONTROL
1. What is not required in conducting nuclear density test? a. The operator must be licensed. b. Radiation exposure limits must be specified. c. The operator must wear thick clothes. d. Units must be delivered in approved cases. 2. Which of the following is not the responsibility of a materials engineer? a. Getting samples for testing b. Analyzing test results c. Setting schedule for delivery of materials d. Recording the concreting activity in the materials logbook 3. Where should the contractor’s mater ials ials engineer directly report to? a. DPWH Project Engineer b. DPWH Materials Engineer c. Contractor’s Project Engineer d. All of the above. 4. It means to regulate a. Control b. Assurance c. Quality Control d. Quality Regulation 5. It means excellence a. Quality b. Control c. Quality Assurance d. Quality Regulation 6. Which of the following are documents prepared by the Materials Engineer? a. Materials logbook b. Quality control program c. Program of works d. Minimum testing requirements 7. It was found that the compaction of embankment is 80%. It is below the required 100% compaction. As the ME, what should you do? a. Accept the embankment b. Adjust the water content c. Accept the embankment but at an adjusted price d. Use rollers with higher compactive efforts 8. The minimum testing apparatus requirements are necessary for ___ contractors. a. Small b. Medium c. Large d. All of the above
9. Which of the following is not the job for a Materials Engineer? a. Submit samples for testing b. Prepares design mix c. Checks the job mix formula d. Surveys and measures line and grade at site
10. During construction of a road project, if all materials to be used are tested for quality, inspection is no longer requires. a. True b. False c. Tralse c. Frue 11. The physical and engineering properties of soils may be improved by: a. Compaction b. Stabilization c. Both A and B c. Neither A nor B 12. The density to which a soil can be compacted is related to a. Compactive efforts b. Water content c. All of the above d. None of the above 13. Defined as the ability it adhere aggr egates in the presence of water. a. Adhesion b. Cohesion c. Stability d. Ductility 14. Sample should be taken and sent the regional officer or any private testing laboratories accredited accredited by DPWH for testing, with a: a. Laboratory result b. Identification card c. Minimize compressibility compressibility d. None of the above 15. Proper compaction of the fill materials is very important, as it will ___. a. Increase the shear strength b. Decrease permeability permeability c. Minimize compressibility compressibility d. All of the above 16. As a Materials Engineer, what will you do with major honeycombed area that is considered as defective work? a. Plaster b. Payment of the concrete will be made at adjusted price c. Remove and replace at eh expense of the contractor d. Plaster 17. If the strength of control specimen does not meet the requirement and not feasible to obtain cores due to structural consideration, consideration, as a Materials Engineer, what will be your decision? a. Remove and replace b. Area will not be paid c. Payment will be made at an adjusted price d. Request for materials certificate before acceptance 18. A program of quality control works to be complied by the contractor is prepared by DPWH ___. a. Minimum Testing Requirements b. Quality Control Program c. Logbook d. Sample Card
MATERIALS QUALITY CONTROL
19. Prescribed in each project based on estimated quantities. The requirements specify the kind and number of test for each item of work. a. Materials logbook b. Minimum testing requirements c. Monthly materials report d. Program of works 20. Memorandum Circular No. ___ hereby directed that all materials men in charge in a said project keep a logbook on Materials Quality Control. a. MC# 55 b. MC# 79 c. MC# 80 *(logbook) d. MC# 11 21. A Department Order, hereby directed that only test issued by the Regional or District Laboratories of the Department and other testing laboratories accredited by the DPWH shall be allowed to be used in the acceptance or rejection of construction materials. a. DO #50 b. DO #55 c. DO #155 d. DO #31 22. A Department Order, hereby directed, no acceptance and final payment shall be made on completed concrete and asphalt pavement unless core test for thickness determination is conducted. a. DO #1a9 b. DO #55 c. DO #100 d. DO #82 23. Determine soil bearing capacity by loading a steel plate usually 30” diameter. a. Vane shear test b. Pile load test c. Plate bearing test d. None of the above 24. ___ is the process of breaking down of rocks into small pieces of various sizes that can range from large builders to very small clay particles. a. Consolidation b. Weathering c. Unconsolidation d. All of the above 25. It evaluates the quality of soil as highway subgrade material. a. Atterberg limit b. Group index c. Plasticity index d. Liquid limit 26. The soil grains are forced apart by the water added, thus the grain strength is reduced, what is the method used? a. Lubrication b. Swelling c. Wetting d. Saturation
27. The practice of artificially densifying and incorporating definite density into the soil mass by rolling or tampering. a. Soil classification b. Soil sampling c. Quartering d. Compaction 28. The unit pressure greater than which progressive settlement will occur leading to failure. a. Bearing value b. Bearing capacity c. Bearing formula c. Bearing pressure 29. It is used in a gravimetric-volumetric relationship ion soils. (or defined as the ratio of the wt. in air to an equal volume of water at a stated temperature.) a. Unit weight b. Specific gravity c. Absorption d. None of the above 30. What is the approximate area for density control strips? a. 355 sq. m b. 355 sq. m c. 500 sq. m d. None of the above 31. In the construction of bridges, what is the method used to determine the casting length of the regular piles? a. Test pitting b. Test piling c. Steel testing d. All of the above 32. What is the latest state of the art equipment containing a radioactive material which is commonly used in the compaction control of earth and asphalt road construction and in the measurement of moisture content? a. Pundit ultrasonic concrete tester b. 3-meter straight edge c. Nuclear density gauge d. Benklemen beam and Deflection Logger 33. An instrument used to measure pavement deflections resulting from vehicle wheel loadings. The results of the elastic deformation tests are used to evaluate the structural; conditions of roads, and to help in the design of road strengthening measures and road capacity. a. Pundit ultrasonic concrete tester b. 3-meter straight-edge c. Nuclear density gauge d. Benkleman Beam Deflection Logger 34. What is the instrument that is used for examining the quality of rigid materials such as rocks and concrete? This instrument or equipment is a non-destructive portable instrument with dimension of 110 x 180 c 160 mm and the main uses include the determination of concrete strength. (either in-situ or pre-cast, also to determine the presence of void cracks and other imperfections). a. Pundit ultrasonic concrete tester b. 3-meter straight-edge c, Nuclear density gauge (NDG)
MATERIALS QUALITY CONTROL
d. Benkleman Beam and deflection Logger 35. Coarse aggregate is the material ___ on the 2.0mm (No.10) sieve: a. Retained b. Passing c. All of the above d. None of the above 36. Fine aggregate is the material ___ on the 2.0mm (No.10) sieve: a. Retained b. Passing c. All of the above d. None of the above 37. At least three (3) weeks prior to production, the contractor shall submit, in writing, a ___ for each mixture supported by laboratory test data. a. Job-mix formula b. Design of concrete mix c. Monthly materials report d. Inspection report
38. A manually-operated device for deriving a measurement of roughness from the surface profile, which may be expressed in terms of International Roughness Index. (IRI) a. Falling weight deflectometer b. Dynamic Cone Penetration (DCP) c. Rebar locator d. MERLIN Road Roughness Measuring Device 39. What is the instrument or equipment used for surface test of concrete and asphalt pavements as soon as the asphalt mix has been initially compacted? a. Falling weight deflectometer b. Dynamic Cone Penetration (DCP) c. Rebar locator d. MERLIN Road Roughness Measuring Device 40. What is the instrument differential deflection between joint of a concrete pavement, to determine the modulus of the existing slabs for use in the design of an overlay, and to estimate the remaining life of an existing pavement? a. Pundit ultrasonic concrete test b. 3-meter straight-edge c. Nuclear density gauge (NDG) d. MERLIN Road Roughness Measuring Device 41. The equipment used to measure di fferential deflections between joints of concrete pavement, to determine the modulus of the existing slabs for use in the design of an overlay, and to estimate the remaining life of an existing pavement. a. Falling weight deflectometer b. Dynamic Cone Penetration (DCP) c. Rebar locator d. MERLIN Road Roughness Measuring Device 42. The equipment used for the rapid in-situ measurement of the structural properties of existing with unbound granular materials. a. Falling weight deflectometer
b. Dynamic Cone Penetration (DCP) c. Rebar locator d. MERLIN Road Roughness Measuring Device 43. What is the degree of compaction of materials immediately under pavement structures, such as wearing course? a. 90% b. 95% c. 97% d. 100% 44. The test conducted for building three stories and above a. Test pit b. Soil exploration c. Boring test d. FDT
45. Refers to the process of determining the degree of compliance of delivered or constructed materials with the specification. a. Materials testing b. Sampling c. Inspecting d. Concreting 46. Weight per volume where the strength of structure is dependent. a. Volume of soil b. Mass of soil c. Density of soil d. Specific weight of the soil 47. ___ is the running surface of the road except shoulders. a. Base b. Sub-base c. Pavement d. Curb and gutter 48. Minimum width of pavement sidewalk. a. 1.50 m b. 1.20 m c. 1.00 m d. 0.60 m 49. What is the basis of acceptance or rejection of any construction materials? a. Inspection report b. Quality control assurance report c. Materials test report d. Mill certificate 50. The monthly materials status report is submitted to DPWH on or before: a. 7th day of the month c. 15th day of the month c. 5th day of the month d. 25th day of the month
