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ME 2016

ME 2016
30問 • 1年前
  • John Jayson Orcino
    • 通報

    問題一覧

  • 1

    What is the minimum compaction requirement for an embankment?

    95%

  • 2

    The folowing factors does not affect the strength of concrete cores driled from the structure, except

    51 kgs. to a maximum of 25 kgs. with at least 50% weighing 20 kgs.

  • 3

    What is the function of emulsifiers in Liquid asphalt?

    to enable asphalt and water to mix

  • 4

    Which of the following is not authorized to test materials for use in DPWH projects?

    Any testing laboratory of alocal government unit

  • 5

    What is not the most commonly accepted measure of the hardness of aggregates?

    Petrographic Test

  • 6

    The temperature of a 7 cu.m Bituminous mix delivered at the project site is 20 degrees centigrade lower than the required compaction temperature require by the Job-Mix Formula. As Materials Engineer of the project, what should you recommend?

    Reject the delivered material.

  • 7

    Which of the following is not a type of volume change of concrete?

    Creep

  • 8

    A soil compacted dry wil reach a certain dry density. If compacted again with same compacted effort but this time with water in the soil, the dry density wil be higher because:

    Air is forced out of the soil.

  • 9

    Portland Cement is so called because:

    It resembled cement obtained by grinding naural rocks found in the Isle of Portland.

  • 10

    The purpose of capping concrete cylinders prior to testing for compression is to:

    Provide smooth, flat ends that are perpendicular to the axis of the sample.

  • 11

    It is the class of concrete used for bedding and after each layer of stone in rubble concrete?

    Class B

  • 12

    The amounts of materials passing No. 50 and No. 100 sieves are important to concrete aggregates because:

    All of the above

  • 13

    A transit mixer for road construction was found to have a 6" slump of fresh concrete instead of the requreid 3". What wil you recommend if you are assigned Materials Engineer?

    Reject the concrete mixture.

  • 14

    What is the weight of Class A Riprap stones?

    51 kgs. to a maximum of 25 kgs. with at least 50% weighing 20 kgs.

  • 15

    Accept the section at an adjusted price due to strength deficiency.

  • 16

    The improper compaction of an embankment material will _______ except:

    Increase shear strength soil stability

  • 17

    In concrete pouring, large variations in the concrete cylinder that results were observed, This shall be remedied by

    All of the above

  • 18

    What is the significance of the loss on ignition of cement?

    It signifies pre-hydration of moisture uptake of cement while it is shelved.

  • 19

    What test determines the resistance of deformation of a compacted asphalt concrete mix?

    Marshall Stability Test

  • 20

    What is the minimum test requirement for riprap boulders?

    Stone size and weight test and inspection report on assessment of stone soundness

  • 21

    Consolidation test is usually performed in ________ samples?

    Undisturbed

  • 22

    Unconfined compressive strength test is usualy performed on _______?

    Clayey Soils

  • 23

    Under Item 406, Pre-Stressed Concrete Structures of the DPWH Specifications, post-tensioning of the pre- stressing reinforcement shall not commence until test on concrete cylinders indicate that the concrete has attained a compressive strength of at least:

    28 Mpa

  • 24

    The following are generally true in the production of high strength concrete except:

    Admixtures include accelerators and retarders

  • 25

    The following properties of an asphalt mix can be determined in a core sample except for:

    Index of retained strength

  • 26

    In how many hours should concrete core samples be submerged ni water before subjecting them to compression test?

    At least 40

  • 27

    A concrete beam fails within the middle third at 7,000 Ibs. The flexural strength of the sample is:

    583 psi

  • 28

    In the process of the compaction of Item 200 (Aggregate Subbase) which contains sandy material only 80% density was attained. What si your recommendation ni order to comply with the 100% minimum degree of compaction?

    Provide additional binder

  • 29

    The rate of application of emulsified asphalt used as tack coat should be within.

    0.2 to 0.7 liters/sq.m

  • 30

    The apparent omission of a detailed description or definition concerning the quality of materials from the plans and specifications shall be regarded to mean that:

    None of the above

    • ME 2015

    ME 2015

    John Jayson Orcino · 99問 · 1年前

    ME 2015

    ME 2015

    99問 • 1年前
    John Jayson Orcino

    問題一覧

  • 1

    What is the minimum compaction requirement for an embankment?

    95%

  • 2

    The folowing factors does not affect the strength of concrete cores driled from the structure, except

    51 kgs. to a maximum of 25 kgs. with at least 50% weighing 20 kgs.

  • 3

    What is the function of emulsifiers in Liquid asphalt?

    to enable asphalt and water to mix

  • 4

    Which of the following is not authorized to test materials for use in DPWH projects?

    Any testing laboratory of alocal government unit

  • 5

    What is not the most commonly accepted measure of the hardness of aggregates?

    Petrographic Test

  • 6

    The temperature of a 7 cu.m Bituminous mix delivered at the project site is 20 degrees centigrade lower than the required compaction temperature require by the Job-Mix Formula. As Materials Engineer of the project, what should you recommend?

    Reject the delivered material.

  • 7

    Which of the following is not a type of volume change of concrete?

    Creep

  • 8

    A soil compacted dry wil reach a certain dry density. If compacted again with same compacted effort but this time with water in the soil, the dry density wil be higher because:

    Air is forced out of the soil.

  • 9

    Portland Cement is so called because:

    It resembled cement obtained by grinding naural rocks found in the Isle of Portland.

  • 10

    The purpose of capping concrete cylinders prior to testing for compression is to:

    Provide smooth, flat ends that are perpendicular to the axis of the sample.

  • 11

    It is the class of concrete used for bedding and after each layer of stone in rubble concrete?

    Class B

  • 12

    The amounts of materials passing No. 50 and No. 100 sieves are important to concrete aggregates because:

    All of the above

  • 13

    A transit mixer for road construction was found to have a 6" slump of fresh concrete instead of the requreid 3". What wil you recommend if you are assigned Materials Engineer?

    Reject the concrete mixture.

  • 14

    What is the weight of Class A Riprap stones?

    51 kgs. to a maximum of 25 kgs. with at least 50% weighing 20 kgs.

  • 15

    Accept the section at an adjusted price due to strength deficiency.

  • 16

    The improper compaction of an embankment material will _______ except:

    Increase shear strength soil stability

  • 17

    In concrete pouring, large variations in the concrete cylinder that results were observed, This shall be remedied by

    All of the above

  • 18

    What is the significance of the loss on ignition of cement?

    It signifies pre-hydration of moisture uptake of cement while it is shelved.

  • 19

    What test determines the resistance of deformation of a compacted asphalt concrete mix?

    Marshall Stability Test

  • 20

    What is the minimum test requirement for riprap boulders?

    Stone size and weight test and inspection report on assessment of stone soundness

  • 21

    Consolidation test is usually performed in ________ samples?

    Undisturbed

  • 22

    Unconfined compressive strength test is usualy performed on _______?

    Clayey Soils

  • 23

    Under Item 406, Pre-Stressed Concrete Structures of the DPWH Specifications, post-tensioning of the pre- stressing reinforcement shall not commence until test on concrete cylinders indicate that the concrete has attained a compressive strength of at least:

    28 Mpa

  • 24

    The following are generally true in the production of high strength concrete except:

    Admixtures include accelerators and retarders

  • 25

    The following properties of an asphalt mix can be determined in a core sample except for:

    Index of retained strength

  • 26

    In how many hours should concrete core samples be submerged ni water before subjecting them to compression test?

    At least 40

  • 27

    A concrete beam fails within the middle third at 7,000 Ibs. The flexural strength of the sample is:

    583 psi

  • 28

    In the process of the compaction of Item 200 (Aggregate Subbase) which contains sandy material only 80% density was attained. What si your recommendation ni order to comply with the 100% minimum degree of compaction?

    Provide additional binder

  • 29

    The rate of application of emulsified asphalt used as tack coat should be within.

    0.2 to 0.7 liters/sq.m

  • 30

    The apparent omission of a detailed description or definition concerning the quality of materials from the plans and specifications shall be regarded to mean that:

    None of the above