Concrete Technology MCQ Practice Questions (Civil Eng) Set 4

Pick up the correct statement from the following:


Options are :

  • 20 bags of cement make one tonne
  • The weight of ingredients of concrete mix, is taken in kilograms
  • The finished concrete is measured in cubic metres
  • Water and aggregates are measured in litres
  • All the above

Answer :All the above

For ensuring quality of concrete, use:


Options are :

  • Coarse aggregates
  • Graded aggregates
  • Single sized aggegates
  • Two sized aggregate

Answer :Graded aggregates

Construction Management MCQ Practice Questions (Civil Eng) Set 1

The increased cohesiveness of concrete, makes it:


Options are :

  • More liable to segregation
  • More liable to bleeding
  • More liable for surface scaling in frosty weather
  • Less liable to segregation
  • None of these

Answer :Less liable to segregation

The standard sand now a days used in India, is obtained from:


Options are :

  • Cuttuck (Orissa)
  • Hyderabad (Andhra Pradesh)
  • Ennore (Madras)
  • Jullundur (Punjab)
  • Jaipur (Rajasthan)

Answer :Ennore (Madras)

Workability improved by adding:


Options are :

  • Foaming agent
  • Oily-agent
  • All the above
  • Air-entraining agent
  • Aluminium compound

Answer :All the above

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

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


Options are :

  • 2/5th of mean dimension
  • None of these
  • 3/5th of mean dimension
  • 4/5th of mean dimension
  • 1/5th of mean dimension

Answer :3/5th of mean dimension

Vicat's apparatus is used for:


Options are :

  • Soundness test
  • Setting time test
  • Fineness test
  • Compressive strength test
  • Consistency test

Answer :Consistency test

For quality control of Portland cement, the test essentially done is:


Options are :

  • Soundness
  • Consistency
  • All the above
  • Tensile strength
  • Setting time

Answer :All the above

Hydraulics MCQ Practice Questions (Civil Engineering) Set 10

The diameter of the Vicat plunger is 10 mm and its length varies from:


Options are :

  • 30 mm to 40 mm
  • 50 mm to 60 mm
  • 20 mm to 30 mm
  • None of these
  • 40 mm to 50 mm

Answer :40 mm to 50 mm

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

For preparing a test-specimen, it is necessary:


Options are :

  • To mix cement and fine aggregate by dry hand
  • To mix coarse aggregates
  • To mix water to the cement, fine aggregates and coarse aggregates
  • All the above
  • To oil inner surface of the mould and the base plate, before placing concrete

Answer :All the above

The bulk density of aggregates, is generally expressed as:


Options are :

  • None of these
  • Tonnes/cubic metre
  • g/cm^(3)
  • Kg/cubic metre
  • Kg/litre

Answer :Kg/litre

Separation of water or water sand cement from a freshly concrete, is known:


Options are :

  • Bleeding
  • Creeping
  • None of these
  • Flooding
  • Segregation

Answer :Bleeding

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

If the engineer-in-charge approves, the 10 cm cubes may be used for the work test of concrete provided maximum nominal size of aggregate, does not exceed:


Options are :

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

Answer :20 cm

The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as:


Options are :

  • Rapid hardening Portland cement
  • Portland pozzolana cement
  • Low-heat Portland cement
  • None of these
  • Portland blast slag cement

Answer :Low-heat Portland cement

The grade of concrete M 150 means that compressive strength of a 15 cm cube after 28 days, is:


Options are :

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

Answer :150 kg/cm^(2)

Hydraulics MCQ Practice Questions (Civil Engineering) Set 4

Joints in concrete structures, are provided:


Options are :

  • To reduce the tensile stresses likely to be developed due to evaporation of water
  • To minimise the necessary cracking
  • To minimise the change in the dimensions of the slab
  • All the above

Answer :All the above

If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of a concrete mixer of 150 litre capacity, is:


Options are :

  • 18, 900 litres
  • 15, 900 litres
  • 16, 900 litres
  • 17, 900 litres

Answer :18, 900 litres

Pick up the incorrect statemnt for performing compressive strength test of cement:


A.

Cement and standard sand mortar are used in the ratio of 1 : 3


B.

Water is added at the rate of

+ 3.0 percentage of water where P is the percentage of water for standard consistency


C.

A cube mould of 10 cm x 10 cm x 10 cm is used


D.

The perpared moulds are kept in a atmosphere of 50% relative humidity


E.

The temperature of water in the submerged tank for curing moulds, should be 27 2C


Options are :

  • B
  • C
  • D
  • E
  • A

Answer :A

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

Saw dust can be rendered chemically inert by boiling it in water containing:


Options are :

  • Ammonia
  • Ferrous sulphate
  • Nitric acid
  • Sulphuric acid
  • Potassium chloride

Answer :Ferrous sulphate

The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 200, is:


A.

1 : 2 : 4


B.

1 : 3 : 6


C.

1 :

: 3


D.

1 : 1 : 2


E.

4 : 2 : 1


Options are :

  • E
  • B
  • C
  • A
  • D

Answer :C

The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is:


Options are :

  • Flaky aggregate
  • Irregular aggregate
  • Angular aggregate
  • Rounded aggregate
  • None of these

Answer :Rounded aggregate

Irrigation MCQ Practice Questions (Civil Engineering) Set 5

Permissible compressive strength of M 150 concrete grade is:


Options are :

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

Answer :150 kg/cm^(2)

Pick up the correct statement from the following:


Options are :

  • All the above
  • Large size aggregates increase the workability due to lesser surface area
  • An increase in water content must be accompanied by an increase in cement content
  • The slump of the concrete mix decreases due to an increase in temperature
  • Angular and rough aggregates reduce the workability of the concrete

Answer :All the above

Efflorescence in cement is caused due to an excess of:


Options are :

  • Alumina
  • Iron oxide
  • Alkalis
  • Magnesium oxide
  • Silica

Answer :Alkalis

Irrigation MCQ Practice Questions (Civil Engineering) Set 1

An ordinary Portland cement when tested for its fineness, should not leave any residue on I.S. seive No. 9, more than:


Options are :

  • 10%
  • 15%
  • 5%
  • 20%
  • 25%

Answer :10%

The factor which affects workability, is:


Options are :

  • Water content and its temperature
  • All the above
  • Air entraining agents
  • Shape and size of the aggregates
  • Grading and surface textures of the aggregates

Answer :All the above

Water cement ratio is:


Options are :

  • Volume of concrete to that of water
  • Weight of concrete to that of water
  • Weight of water to that of cement
  • Volume of water to that of cement
  • None of these

Answer :Weight of water to that of cement Volume of water to that of cement

Concrete Technology MCQ Practice Questions (Civil Eng) Set 1

The shrinkage of concrete:


Options are :

  • Increases with age of concrete
  • All the above
  • Is proportional to water content is the mix
  • Is proportional to cement concrete

Answer :All the above

While designing an air entrained concrete:


Options are :

  • All the above
  • Proportion of aggregates is reduced
  • Water cement ratio is reduced
  • Strength of the concrete, is reduced
  • An allowance for the entrained air is made

Answer :All the above

Pick up the correct statement from the following:


Options are :

  • High percentage of C3S and low percentage of C2S make the cement less resistive to chemical attack
  • Low percentage of C3S and high percentage of C2S contribute to slow hardening
  • High percentage of C3S and low percentage of C2S cause rapid hardening
  • Low percentage of C3S and high percentage of C2S provide greater resistance to chemical attack
  • All the above

Answer :All the above

Construction Management MCQ Practice Questions (Civil Eng) Set 2

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