Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.4, is:


Options are :

  • 50%
  • 40%
  • 30%
  • 60%

Answer :50%

Theory of Structures MCQ Practice Questions (Civil Eng) Set 2

C.R.R.I. charts are used to obtain a relatioship between strength of concrete and:


Options are :

  • Grading of aggregate
  • Fineness modulus
  • Water cement ratio
  • Workability
  • None of these

Answer :Water cement ratio

Segregation is responsible for:


Options are :

  • Surface scaling in concrete
  • Sand streaks in concrete
  • Porous layers in concrete
  • Honey-combed concrete
  • All the above

Answer :All the above

Pick up the incorrect statement from the following:


Options are :

  • None of these
  • Good compaction by mechanical vibrtions, increases the strength of concrete
  • A rich mix of concrete possesses higher strength than that a lean mix of desired workability with excessive equantity of water
  • If the water cement ratio is less than 0.45, the concrete is not workable and causes honey-combed structure
  • The strength of concrete decreases as the water cement ratio increases

Answer :A rich mix of concrete possesses higher strength than that a lean mix of desired workability with excessive equantity of water

Theory of Structures MCQ Practice Questions (Civil Eng) Set 1

For an ordinary Portland cement:


Options are :

  • All the above
  • Initial setting time is not less than 30 minutes
  • Compressive stress after 7 days, is not less than 175 kg/cm^(2)
  • Soundness varies from 5 to 10 mm
  • Residual does not exceed 10% when sieved through IS Sieve No. 9

Answer :Initial setting time is not less than 30 minutes

If the depth of moist sand in a cylinder is 15 cm and the depth of the sand when fully inundated with water is 12 cm, the bulking of the moist sand, is:


Options are :

  • 15%
  • 12%
  • 10%
  • 20%
  • 25%

Answer :25%

Pick up the correct statement from the following:


Options are :

  • None of these
  • The total water is the free water and the amount actually absorbed by the aggregates
  • The free water is the amount of water added while mixing and the amount of water held on the surface of the aggregates prior to mixing

Answer :The total water is the free water and the amount actually absorbed by the aggregates The free water is the amount of water added while mixing and the amount of water held on the surface of the aggregates prior to mixing

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 7

The process of hardening the concrete by keeping its surface moist is known:


Options are :

  • Wetting
  • Placing
  • None of these
  • Compacting
  • Curing

Answer :Curing

Hardening of cement occurs at:


Options are :

  • None of these
  • Slow rate during the first few days and afterwards it continues to increase at a rapid rate
  • Rapid rate during the first few days and afterwards it continues to increase at a decreased rate
  • Uniform rate throughout its age

Answer :None of these

Pick up the correct statement from the following:


Options are :

  • Consistency does not affect the workability of concrete
  • Segregation is necessary for a workable concrete
  • If the concrete mix is dry, the slump is maximum
  • If the slump increases, workability decreases
  • None of these

Answer :None of these

Concrete Technology MCQ Practice Questions (Civil Eng) Set 8

Ordinary concrete is not used for concrete grade:


Options are :

  • M 150
  • M 400
  • M 250
  • M 200
  • M 100

Answer :M 400

Pick up the correct statement from the following:


Options are :

  • All the above
  • According to the shape of the particles, concrete aggregates are classified as rounded irregular, angular and flaky
  • According to the petrological characteristics, concrete aggregates are classified as heavy weight, normal weight and light weight
  • According to the surface texture of the particles, the concrete aggregates are classified as glassy, smooth, granular, rough, crystalline, honey combed and porous

Answer :All the above

Shrinkage in concrete can be reduced by using:


Options are :

  • Less cement in the concrete
  • All the above
  • Proper concrete mix
  • Low water cement ratio
  • Presaturated aggregates

Answer :All the above

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 3

The light weight aggregates are obtained from:


Options are :

  • Metamorphic rocks
  • Volcanic source
  • Igneous rocks
  • Sedimentary rocks

Answer :Volcanic source

The maximum thickness of concrete floor of a cement warehouse, is:


Options are :

  • 30 cm
  • 20 cm
  • 10 cm
  • 25 cm
  • 15 cm

Answer :25 cm

ISI has specified full strength of concrete after:


Options are :

  • 21 days
  • 28 days
  • None of these
  • 7 days
  • 14 days

Answer :None of these

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 3

Water required per bag of cement, is:


Options are :

  • 21 kg
  • 7 kg
  • 14 kg
  • 28 kg
  • 35 kg

Answer :35 kg

1.S. Sieve Nos. 10 mm and 4.75 mm are geneally used for grading of:


Options are :

  • Coarse aggregates
  • None of these
  • Fine aggregates

Answer :Coarse aggregates Fine aggregates

The datum temperature for maturity by Plowman, is:


Options are :

  • - 11.7C
  • - 5.6C
  • 23C
  • 0

Answer :- 11.7C

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 1

If X, Y and Z are the fineness modulli of coarse, fine and combined aggregates, the percentage (P) of fine aggregates to combined aggregates, is:


A.


B.


C.


D.


E.


Options are :

  • E
  • B
  • A
  • D
  • C

Answer :B

Irrigation MCQ Practice Questions (Civil Engineering) Set 4

Construction joints are provided:


Options are :

  • Where B.M. and S.F. are small
  • At 18 m apart in huge structures
  • Where the member is supported by other member
  • All the above
  • In concrete wall at sill level of windows

Answer :All the above

For given water content, workability decreases if the concrete aggregates contain an excess of:


Options are :

  • All the above
  • Elongated particles
  • Thin particles
  • Flat particles
  • Flaky paticles

Answer :All the above

Hydration of cement is due to chemical action of water with:


Options are :

  • Tricalcium aluminate and tricalcium alumino ferrite
  • Tricalcium silicate and dicalcium silicate
  • All the above
  • Dicalcium silicate and tricalcium aluminate

Answer :All the above

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 1

Slump test is done for:


Options are :

  • Concrete
  • Clay
  • Sand
  • Lime

Answer :Concrete

The rock which is not calcareous, is:


Options are :

  • Lime stone
  • Chalk
  • Macl
  • None of these
  • Laterite

Answer :Laterite

The high strength of rapid hardening cement at early stage, is due to its:


Options are :

  • Finer grinding
  • Burning at high temperature
  • Higher content of tricalcium
  • Increased lime cement

Answer :Increased lime cement

Theory of Structures MCQ Practice Questions (Civil Eng) Set 3

Construction joints are generally provided in concrete:


Options are :

  • Lining of canals
  • Lining of tunnels
  • Roads
  • All the above
  • Retaining walls

Answer :All the above

The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known:


Options are :

  • Mixing
  • Batching
  • Curing
  • None of these
  • Grading

Answer :Batching

For the construction of cement concrete floor, the maximum permissible size of aggregate, is:


Options are :

  • 6 mm
  • 10 mm
  • 12 mm
  • 4 mm
  • 8 mm

Answer :10 mm

Construction Management MCQ Practice Questions (Civil Eng) Set 3

Pick up the correct statement from the following:


Options are :

  • All the above
  • Excess quantity of water makes the concrete segregated
  • Insufficient quantity of water makes the concrete unworkable
  • Insufficient quantity of water makes the concrete mix harsh
  • Excess quantity of water causes bleeding in concrete

Answer :All the above

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