CONCRETE TECHNOLOGY - 17/09/2019
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10 questions
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- Q1What is the size of fine aggregates?12mm> 4.75mm< 4.75mm4.75mm30s
- Q2Creep is ____________Pressure dependentTime dependentTemperature dependentTime independent30s
- Q3Workability of concrete can be improved by ___________Increasing flaky aggregatesIncreasing size of aggregatesDecreasing size of aggregatesIncreasing elongated aggregates30s
- Q4Which machine is preferred for abrasion test?Flakiness GaugeElongation GaugeVicat’s mouldLos Angeles30s
- Q5steam curing is preferred forbeamsmass production of precast unitsslabsnone of these30s
- Q6Fine sand bulks __________ than coarse sand.LessEqualDepends on volumeMore30s
- Q7Admixtures which cause early setting, and hardening of concrete are called __________AcceleratorsSuper plasticizerPlasticizersRetarders30s
- Q8inert material in concreteaggregateswateradmixturescement30s
- Q9The water–cement ratio is the ratio of ___Weight of water to the weight of aggregatesVolume of water to the volume of cementWeight of water to the weight of cementDensity of water to the Density of cement30s
- Q10A lower ratio leads to ___Lower strength and durabilityLower strength but high durabilityHigher strength and durabilityHigher strength but low durability30s