Concrete Technology MCQ Practice Questions (Civil Eng) Set 5

Allowable shear strength of concrete, depends upon:


Options are :

  • Tensile strength
  • Shear strength
  • Compressive strength
  • None of these

Answer :Shear strength

The type of aggregates of same nominal size, which contain less voids when compacted, are:


Options are :

  • None of these
  • Irregular
  • Rounded spherical
  • Flaky

Answer :Rounded spherical

The top diameter, bottom diameter and the height of a slump mould are:


Options are :

  • 20 cm, 30 cm, 10 cm
  • 20 cm, 10 cm, 30 cm
  • 10 cm, 20 cm, 30 cm
  • 10 cm, 30 cm, 20 cm
  • 30 cm, 20 cm, 10 cm

Answer :10 cm, 20 cm, 30 cm

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 5

Pozzolana cement is used with confidence for construction of:


Options are :

  • All the above
  • Massive foundations
  • R.C.C. structures
  • Abutments
  • Dams

Answer :All the above

The void ratio of:


Options are :

  • Graded coarse aggregate is roughly 0.040
  • Single size coarse aggregate is roughly 0.45
  • Fine aggregate is roughly 0.45
  • All the above

Answer :All the above

According to Water-Cement Ratio Law, the strength of workable plastic concrete:


Options are :

  • Depends upon the amount of water used in the mix
  • All the above
  • Does not depend upon the quality of cement mixed with aggregates
  • Does not depend upon the quanity of cement mixed with aggregates

Answer :All the above

Irrigation MCQ Practice Questions (Civil Engineering) Set 5

The aggregate containing moisture in pores and having its suface dry, is known as:


Options are :

  • Moist aggregates
  • Dry aggregates
  • Very dry aggregates
  • None of these
  • Saturated surface dry aggregate

Answer :Saturated surface dry aggregate

The operation of removing humps and hollows of uniform concrete surface, is known as:


Options are :

  • Floating
  • Trowelling
  • Finishing
  • None of these
  • Screeding

Answer :Screeding

The condition not applicable to water cement ratio law, is:


Options are :

  • Concrete specimens need be of same age
  • Concrete specimens may be tested at any temperature
  • Internal moisture conditions on hydration continue till complete strength is gained
  • Concrete specimens need be of same size
  • None of these

Answer :Concrete specimens may be tested at any temperature

Concrete Technology MCQ Practice Questions (Civil Eng) Set 8

Permissible compressive strength of M 200 concrete grade is:


Options are :

  • 200 kg/cm^(2)
  • 150 kg/cm^(2)
  • 250 kg/cm^(2)
  • 300 kg/cm^(2)
  • 100 kg/cm^(2)

Answer :200 kg/cm^(2)

The most useless aggregate is one whose surface texture is:


Options are :

  • Glassy
  • Granular
  • Honey combed and porous
  • Smooth

Answer :Glassy

Concrete containing:


Options are :

  • Lime stones, has lowest co-efficient of expansion
  • Igneous aggregates, has intermediate coefficient of expansion
  • Silicious aggregates, has higher co-efficient of expansion
  • All the above

Answer :All the above

Construction Management MCQ Practice Questions (Civil Eng) Set 1

For the construction of cement con-certe dams, the maximum permissible size of the aggregates, is:


Options are :

  • 50 mm
  • 60 mm
  • 70 mm
  • 40 mm
  • 80 mm

Answer :40 mm

Pick up the correct statement from the following:


Options are :

  • Strength of concrete structure largely depends upon its workability
  • All the above
  • Water lubricates the mixture of gravel, sand and cement
  • Only a small quantity of water is required for hydration of cement
  • Water enables chemical reaction to take place with cement

Answer :All the above

For concreting tunnel linings, tran-portation of concrete is done by:


Options are :

  • Belt conveyors
  • Pumps
  • Wheel borrows
  • Containers
  • Pans

Answer :Pumps

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 9

Pick up the incorrect statement applicable to the field test of good cement:


Options are :

  • A handful of cement thrown into a bucket of water should sink immediately
  • The colour of the cement is bluish
  • All the above
  • When one thrusts one's hand into a bag of cement, one should feel warm
  • By rubbing cement in between fingers, one should feed rough

Answer :All the above

Pick up the incorrect statement from the following:


Options are :

  • None of these
  • In single size aggregates, bulk density is maximum
  • In single size aggregates, bulk density is least
  • In properly graded aggregates, bulk density is more

Answer :In single size aggregates, bulk density is maximum

The commercial name of white and coloured cement in India, is:


Options are :

  • All the above
  • Colocrete
  • Silvicrete
  • Snowcem
  • Rainbow cement

Answer :All the above

Concrete Technology MCQ Practice Questions (Civil Eng) Set 1

Pick up the correct statement from the following:


Options are :

  • Broken bricks produce a concrete having good fire resisting qualities
  • All the above
  • Very hard and close grained crystallined lime stones are suitable aggregates but provide low strength
  • Concrete using sand stones, cracks due to excessive shrinkage
  • Sand stones may be divided into calcareous, siliceous and ferrugineous sand stones

Answer :All the above

Workability of concrete mix with low water cement ratio is determined by:


Options are :

  • Compaction factor test
  • Tensile strength test
  • Flexural strength test
  • None of these
  • Slump test

Answer :Compaction factor test

For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is:


A.

1 : 3 : 6


B.

1 :

: 3


C.

1 : 2 : 4


D.

1 : 1 : 2


E.

1 : 4 : 8


Options are :

  • A
  • C
  • E
  • D
  • B

Answer :C

Irrigation MCQ Practice Questions (Civil Engineering) Set 2

High temperature:


Options are :

  • Increases the strength of concrete
  • None of these
  • Has no effect on the strength of concrete
  • Decreases the strength of concrete

Answer :Decreases the strength of concrete

Pick up the correct statement from the following:


Options are :

  • Calcium chloride acts as an accelerator
  • Gypsum (calcium sulphate) acts as an accelerator
  • None of these
  • Gypsum (calcium sulphate) acts as a retarder
  • Calcium chloride acts as a retarder

Answer :Calcium chloride acts as an accelerator Gypsum (calcium sulphate) acts as a retarder

To obtain a very high strength concrete, use very fine grained:


Options are :

  • Granite
  • Volcanic scoria
  • Barite
  • Magnetite

Answer :Granite

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

To hydrate 500kg of cement full water needed, is:


Options are :

  • 100 kg
  • 110 kg
  • 130 kg
  • 140 kg
  • 120 kg

Answer :130 kg

Slump test of concrete is a measure of its:


Options are :

  • Tensile strength
  • Compressive strength
  • Impact value
  • Consistency

Answer :Consistency

If the slump of a concrete mix is 60 mm, its workability is:


Options are :

  • None of these
  • Very low
  • Medium
  • High
  • Low

Answer :Medium

Hydraulics MCQ Practice Questions (Civil Engineering) Set 5

Water cement ratio is generally expressed in volume of water required per:


Options are :

  • 40 kg
  • 20 kg
  • 30 kg
  • 10 kg
  • 50 kg

Answer :50 kg

Ordinary Portland cement is manufactured from:


Options are :

  • Gypsum and lime
  • Lime stone and clay
  • Lime, pozzolana and clay
  • Pozzolana

Answer :Gypsum and lime

For a good concrete:


Options are :

  • Water should be free from organic materials
  • Mixing of ingredients should be done thoroughly so as to produce homogeneity
  • All the above
  • Aggregates should be hard and durable
  • Cement should be sufficient to produce the required strength

Answer :All the above

Hydraulics MCQ Practice Questions (Civil Engineering) Set 5

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