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CONCRETE TECHNOLOGY - 17/09/2019

Quiz by Wincentre Classes

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10 questions
Show answers
  • Q1
    What is the size of fine aggregates?
    12mm
    > 4.75mm
    < 4.75mm
    4.75mm
    30s
  • Q2
    Creep is ____________
    Pressure dependent
    Time dependent
    Temperature dependent
    Time independent
    30s
  • Q3
    Workability of concrete can be improved by ___________
    Increasing flaky aggregates
    Increasing size of aggregates
    Decreasing size of aggregates
    Increasing elongated aggregates
    30s
  • Q4
    Which machine is preferred for abrasion test?
    Flakiness Gauge
    Elongation Gauge
    Vicat’s mould
    Los Angeles
    30s
  • Q5
    steam curing is preferred for
    beams
    mass production of precast units
    slabs
    none of these
    30s
  • Q6
    Fine sand bulks __________ than coarse sand.
    Less
    Equal
    Depends on volume
    More
    30s
  • Q7
    Admixtures which cause early setting, and hardening of concrete are called __________
    Accelerators
    Super plasticizer
    Plasticizers
    Retarders
    30s
  • Q8
    inert material in concrete
    aggregates
    water
    admixtures
    cement
    30s
  • Q9
    The water–cement ratio is the ratio of ___
    Weight of water to the weight of aggregates
    Volume of water to the volume of cement
    Weight of water to the weight of cement
    Density of water to the Density of cement
    30s
  • Q10
    A lower ratio leads to ___
    Lower strength and durability
    Lower strength but high durability
    Higher strength and durability
    Higher strength but low durability
    30s

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