Concrete Technology MCQ Practice Questions (Civil Eng) Set 1

Specified compressive strengh of concrete is obtained from cube tests at the end of:


Options are :

  • 3 days
  • 14 days
  • 21 days
  • 28 days
  • 7 days

Answer :28 days

Hydraulics MCQ Practice Questions (Civil Engineering) Set 1

For compacting plain concrete road surface of thickness less than 20 cm, we use:


Options are :

  • None of these
  • Internal vibrator
  • Screed vibrator
  • Form vibrator

Answer :Screed vibrator

The internal dimensions of a ware house are 15 m x 5.6 m, and the maximum height of piles is 2.70 m, the maximum number of bags to be stored in two piles, are:


Options are :

  • 3000 bags
  • 2500 bags
  • 2000 bags
  • 1500 bags
  • 4000 bags

Answer :3000 bags

The compaction of concrete, improves:


Options are :

  • Durability
  • Strength
  • All the above
  • Density

Answer :All the above

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

Batching error means inaccuracy in the quantity of:


Options are :

  • All the above
  • Cement
  • Water
  • Aggregates

Answer :All the above

The produce impermeable concrete:


Options are :

  • Properly graded and non-porous aggregates are requied
  • All the above
  • Thorough mixing of concrete is required
  • Proper compaction of concrete is required
  • Proper curing of concrete is required

Answer :All the above

The grade of concrete not recommended by I.S. : 456, is:


Options are :

  • M 400
  • M 100
  • M 500
  • M 300
  • M 200

Answer :M 500

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

Too wet concrete may cause:


Options are :

  • All the above
  • Lower density
  • Weakness of concrete
  • Excessive laitance
  • Segregation

Answer :All the above

A construction joint is provided where:


Options are :

  • The member is supported by other member
  • Bending moment is small
  • Shear force is small
  • All the above

Answer :All the above

Pick up the correct statement from the following:


Options are :

  • Construction joints are provided to control shrinkage cracks
  • Construction joints are necessarily planned for their locations
  • Expansion joints need not be provided in foundation concrete
  • All the above
  • Expansion joints are provided to accommodate thermal expansion

Answer :All the above

Hydraulics MCQ Practice Questions (Civil Engineering) Set 10

Pick up the correct statement from the following:


Options are :

  • Alumina in excess, reduces the strength of the cement
  • Lime in excess, causes the cement to expand and disintegrate
  • Magnesium oxide in excess, remains in free state and makes the cement unsound
  • All the above
  • Silica in excess, causes the cement to set slowly

Answer :All the above

Pick up the incorrect statement from the following:


Options are :

  • None of these
  • The degree of grinding of cement, is called fineness
  • The heat generated during chemical reaction of cement with water, is known as heat of hydration
  • The process of changing cement paste into hard mass, is known as setting of cement
  • The phenomenon by virtue of which cement does not allow transmission of sound, is known as soundness of cement

Answer :The phenomenon by virtue of which cement does not allow transmission of sound, is known as soundness of cement

Separation of coarse aggregates from mortar during transportation, is known:


Options are :

  • None of these
  • Creeping
  • Segregation
  • Bleeding
  • Shrinkage

Answer :Shrinkage

Irrigation MCQ Practice Questions (Civil Engineering) Set 3

Pick up the correct statement from the following:


Options are :

  • The volume of fully saturated sand, is equal to the volume of dry and loose sand
  • Bulking of sand is caused due to formation of a thin film of surface moisture
  • All the above
  • Fine sand bulks more than coarse sand
  • With 10% moisture content by weight, the bulking of sand is increased by 50%

Answer :All the above

Percentage of pozzolanic material containing clay upto 80% used for the manufacture of pozzolana cement, is:


Options are :

  • 50%
  • 30%
  • 40%
  • 70%
  • 60%

Answer :30%

According to the recommendations of IS : 456-1978, the expansion joints:


Options are :

  • Are provided to ensure minimum resistance
  • Are supported on separate columns
  • Are provided where plane changes abruptly
  • All the above
  • Do not carry reinforcement across them

Answer :All the above

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

Proper batching ensures:


Options are :

  • Workability
  • Durability
  • Economy
  • Strength
  • All the above

Answer :All the above

Workability of concrete for a given water content is good if the aggregates, are:


Options are :

  • Rounded aggregate
  • Flaky aggregates
  • Angular aggregate
  • Irregular aggregate

Answer :Rounded aggregate

Grading of sand causes great variation in:


Options are :

  • All the above
  • Workability of concrete
  • Handing and placing of concrete
  • Strength of concrete
  • Durability of concrete

Answer :All the above

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 2

The final operation of finishing floors, is known as:


Options are :

  • Finishing
  • Floating
  • All the above
  • Screeding
  • Trowelling

Answer :Trowelling

For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are:


Options are :

  • 105 litres of sand and 140 litres of aggregates
  • None of these
  • 70 kg of sand and 140 litres of aggregates
  • 105 litres of sand and 210 litres of aggregates
  • 70 litres of sand and 120 litres of aggregates

Answer :105 litres of sand and 210 litres of aggregates

Addition of pozzolana to cement causes:


Options are :

  • Increase in curing time
  • Reduction in bleeding
  • All the above
  • Reduction in permeability
  • Loss of heat of hydration

Answer :All the above

Hydraulics MCQ Practice Questions (Civil Engineering) Set 3

For construction of structures in sea water, the cement generally preferred to, is:


Options are :

  • Portland-pozzolana cement
  • None of these
  • Rapid hardening cement
  • Low heat Portland cement
  • Quick setting cement

Answer :Portland-pozzolana cement

Pick up the correct statement from the following:


Options are :

  • All the above
  • Higher workability indicates deficiency of sand
  • Concrete mix having zero slump, is unsuitable for high strength
  • If the concrete mix is dry, the slump is zero
  • Higher workability indicates unexpected increase in the moisture content

Answer :All the above

Pick up the correct statement from the following:


Options are :

  • All the above
  • Water cement paste hardens due to hydration
  • During hardening cement binds the aggregates together
  • Cement provides strength, durability and water tightness to the concrete

Answer :All the above

Construction Management MCQ Practice Questions (Civil Eng) Set 1

An aggregate is said to be flaky, if its least dimension is less than:


Options are :

  • 3/5 mean dimension
  • 5/8 mean dimension
  • 2/3 mean dimension
  • None of these
  • 3/4 mean dimension

Answer :3/5 mean dimension

You are asked to construct a massive dam, the type of cement you will use, is:


Options are :

  • Blast furnace slag cement
  • Low heat cement
  • Rapid hardening cement
  • Ordinary Portland cement
  • White cement

Answer :Low heat cement

Addition of pozzolana to ordinary port land cement, causes:


Options are :

  • Reduction bleeding
  • Decrease in early strength
  • Reduction in chemical action with sulphates
  • All the above
  • Increase in shrinkage

Answer :All the above

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

Addition of pozzolana to cement:


Options are :

  • Decreases curing time
  • Increases strength
  • Decreases workability
  • None of these
  • Increases heat of hydration

Answer :None of these

Pick up the incorrect statement from the following:


Options are :

  • The mould is in the form of a frustum of hexagonal pyramid
  • The bottom and top ends of slump mould are parallel to each other
  • None of these
  • The internal surface of the mould is kept clean and free from set cement
  • The axis of the mould is perpendicular to the end faces

Answer :The mould is in the form of a frustum of hexagonal pyramid

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