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M.Tech Structural Aggregates — practice questions

Explore 17 free Aggregates questions in M.Tech Structural Civil Engineering. Open each question or exercise to read its content, reference answers and available explanation.

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Aggregates questions and exercises with answers

Showing questions 1–17 of 17.

In a typical Portland cement concrete, aggregates by volume occupy approximately:Read the answer and worked solution →Which of the following is correctly listed as an ARTIFICIAL (synthetic) aggregate by the source?Read the answer and worked solution →Per the source, the bulk of concrete aggregates is derived from which type of bed rock?Read the answer and worked solution →The boundary size that separates COARSE from FINE aggregate, as fixed in the source, is:Read the answer and worked solution →For ordinary reinforced concrete work, the source recommends a maximum aggregate size of:Read the answer and worked solution →According to Table 2.1, crushed rocks of all types are classified by shape as:Read the answer and worked solution →Compared to rounded aggregates, angular aggregates typically lead to concrete that has:Read the answer and worked solution →Per IS 383-1970 (Aggregate Impact Value) cited in the source, the impact value for aggregate used in wearing surfaces such as runways and roads shall not exceed:Read the answer and worked solution →Per the source, the average specific gravity of rocks used as concrete aggregates typically lies in the range:Read the answer and worked solution →Extremely fine sand, per the source, may show a maximum bulking of approximately:Read the answer and worked solution →The Calorimetric Test described in §2.2.10 is performed by mixing a sand sample with:Read the answer and worked solution →As laid down by IS 383:1970 (Table 2.4 of the source), the sum of the percentages of all deleterious materials in concrete aggregate shall not exceed:Read the answer and worked solution →Per §2.2.11, the soundness test on aggregates is described as:Read the answer and worked solution →Per §2.2.14, the Fineness Modulus range that corresponds to MEDIUM sand is:Read the answer and worked solution →Per §2.3.2(iii), in the Aggregate Impact Value test the standard hammer falls from a height of approximately:Read the answer and worked solution →Per the source, three thermal properties of aggregates are named; the one most important for day-to-day concreting work is:Read the answer and worked solution →Pick the option with the HIGHER density / strength value.Read the answer and worked solution →

Worked practice questions

In a typical Portland cement concrete, aggregates by volume occupy approximately:

  1. 70 to 80 percent of the volume
  2. 40 to 50 percent of the volume
  3. 20 to 30 percent of the volume
  4. More than 90 percent of the volume
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Correct answer: A. 70 to 80 percent of the volume

1. §2.1 reads: 'aggregates… give body to the concrete and occupy 70 to 80 percent of volume of concrete.' 2. §2.4 summary repeats: 'aggregates form about 70 percent of the concrete.' 3. Hence the dominant volume share lies between 70-80 percent. _Source: IGNOU ET-522 Block-1 Unit-2 Aggregates, §2.1 and §2.4, pp. 18 and 37_

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Which of the following is correctly listed as an ARTIFICIAL (synthetic) aggregate by the source?

  1. River-bed sand and gravel
  2. Quartzite from natural rock
  3. Crushed blast furnace slag
  4. Granite from natural rock
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Correct answer: C. Crushed blast furnace slag

1. §2.2.1 names artificial/synthetic aggregates as 'crushed blast furnace slag, cinders, burned clay and coloured ceramic aggregates.' 2. Sand, gravel, granite and quartzite are listed as natural aggregates in the same section. _Source: IGNOU ET-522 Block-1 Unit-2 Aggregates, §2.2.1, p. 19_

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Per the source, the bulk of concrete aggregates is derived from which type of bed rock?

  1. Pyroclastic rocks
  2. Sedimentary rocks
  3. Metamorphic rocks
  4. Igneous rocks
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Correct answer: D. Igneous rocks

1. §2.2.2 describes igneous rocks as 'normally hard, tough and dense and therefore are a highly satisfactory source… bulk of aggregates are derived from them.' 2. Sedimentary and metamorphic rocks are listed as alternative but not primary sources. _Source: IGNOU ET-522 Block-1 Unit-2 Aggregates, §2.2.2(i), p. 19_

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More Civil Engineering topics

GATE Civil — Core TopicsCementStrength of MaterialsTesting of ConcreteConcreting EquipmentWorkability of Fresh ConcreteConcrete Mix DesignSpecial Concrete