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Civil Engineering Interview Questions And Answers

Updated on August 30, 2018

Latest Job Interview Questions And Answers


Q.1 What is meant by elastic limit?

Ans. The maximum extent to which a solid may be stretched without permanent alteration of size or shape.

Q.2 What is the difference between BC and SDBC ?

Ans BC- Bituminous Concrete
SDBC- Semi Dense Bituminous Concrete

Q.3 What is the basic difference in absorption, adsorption, and sorption?


Ans.Absorption is a phenomenon where an atom, molecule particle or ions enter any bulk phase like gas, solid or liquid. Absorption refers to the phenomenon where energy of photon is transferred to other entity.
Adsorption is quite same to absorption. It refers to the surface rather than a volume. Adsorption occurs when the gas or liquid solute accumulates on the surface of solid. A substance diffuses or mixed in liquid or solid to form a solution.

Q.4 What is the meaning of Fe415 ?
Ans Fe415 rafers for Ferrous material ie iron from which the reinforcement steel bars are manufactured. The number 415 indicates that the Yield Strength (tensile strength when it is subjected to elongation) of steel is 415 N/mm2.
The reinforcement steel bars used in RCC (Reinforced Cement Concrete) are designated in grades of Fe250, Fe415 or Fe500 depending on their Yield Strength.

Q.5 How are the freeway bridges built?
Ans.The traffic that is likely to go over the bridge at a time is estimated and the cement, rocked with rubber stanchions is placed over the freeway to build a bridge. Off-ramp from freeway to the bridge and on-ramp from the bridge to the freeway are constructed. Cement slabs are placed one by one to build a platform.

Q.6 A flat slab is capable to withstand ?
Ans..concentrated loads.

Q.7 An R.C.C. column is treated as long if its slenderness ratio is greater than?
Ans..50

Q.8 Difference between routine maintenance and major maintenance for school facilities?

Ans..Routine maintenance is handling the minor repairs of the school campus. Major maintenance can be total reconstruction or renovation of the school.

Q.9 Cantilever retaining walls can safely be used for a height not more than?
Ans..6 m

Q.10 State the applications of modulus of elasticity?

Ans...Modulus of elasticity is related to the flexibility of the material. The value of modulus of elasticity is pretty important in case of deflection of different materials used in building construction.

Q.11 The minimum number of main steel bars provided in R.C.C.?
Ans. .rectangular columns is 4
circular columns is 6
octagonal columns is 8

Some Interesting Interviews Questions And Answers

Q.1 The maximum area of tension reinforcement in beams shall not exceed?

Ans..4%

Q. 2 What is the tallest man made structure in the world?

Ans. KVLY-TV is the best man made construction in the world. Its height is 2063 feet.

And The another one is Burj Dubai. Its height is 800 meter.

Q.3 How we can measure the concrete?

Ans. Cubic Feet, Cubic Yard and Cubic Meter are the three method which are used to measure the concrete size.

Q. 4 What is braced excavation all about?

Ans. Excavation are braced to reduce the cave-in of surrounding unstable soil. It is useful to confirm the strength of the basement.

Q. 5 What do you understand by aggregate?

Ans. To resist the compression stress of a composite material,an special component is used This special component is known as aggregate.

Q.6 what is meant by shearing strain?

ANS. shearing strain is defined as the change in right angle of a body , measured in radians due to applied shear stress

(or)

A condition in or deformation of an elastic body caused by forces that tend to produce an opposite but parallel sliding motion of the body's planes.

(or)

A measure of angular distortion also directly measurable, but not as easily as axial strain.

(or)

Shear strain is defined as angular change at some point in a shape.

Q.7 What is meant by Poisson ratio?

ANS. Poisson's ratio, named after Siméon Poisson, is the negative ratio of transverse to axial strain. When a material is compressed in one direction, it usually tends to expand in the other two directions perpendicular or parallel to the direction of flow.

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Some knowledgeable Interview Questions

Q.1 What are the various methods of concrete curing?

Ans. The way of Maintaining the moisture and temperature in the fresh wall is known as cunning. It is performed for a small duration of time to allow the hardening of concrete.

Steps are given below:-1 Spray of water on walls.

2 Wet covering of surface.

3 Pounding4 Steam curing

5 Application of curing compounds.

Q. 2 What are the steps involved in concreting process?

Ans. (A) Batching.....It is the process of measurement of the different materials for making the concrete. There are generally two ways of batching...

1 Volume Batching

2 Weight Batching

(B) Mixing.....For making a good mixing the materials should be mixed first in dry condition and then in wet condition.

(C) Transportation and Placing of concrete...After mixing the concrete the next step is to place it to its final location as soon as possible. Mixing should be done nearby place to reduce transportation.

(D) Compaction of Concrete....When concrete is placed it may have some air bubbles entrapped in it. It may be a case of reduction of strength by 30%. Hence compaction is done to reduce or eleminate this problem.

Q. 3 Why should pumping not be used in case of concrete work?

Ans. In pumping operation fluid exert pressure on the contact surface of pipes, this pressure must be overcome the friction between the contact surface of pipes and concrete. The weight of concrete is also overcome by this pressure when concrete is placed over the pumping pipe. As we know that only water is pump able, hence all the pressures generated by water are in concrete..Segregation and bleeding are the main effect generated in this system due to pumping to reduce these effect, the proportion of cement is increased in order to increase the cohesion., and as a result it leads to the reduction of segregation and bleeding.




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Latest Civil Engineering Interview Questions

Q. 1 What is Punching Shear?

Ans. Punching shear is a type of failure of reinforced concrete slabs subjected to high localized forces. In flat slab structures this occurs at column support points.

Q. 2 The standard sand now a days used in India is obtained from ?

ANS..Ennore (madras)

Q.3 The mixture of different ingredients of cement is burnt at temperature of ?

ANS...1400 degree centigrade

Q. 4 For ensuring quality of concrete which aggregates are used?

ANS... Graded aggregates

Q.5 IN Quality Control of Portland Cement, the test essentially done is ?

ANS... Setting time, Soundness, tensile strength,consistency.

Q.6 Why we are not provide bar in the center of the column and bar?

Ans... Steel are provided for tension. In column max. tesile stresses are generated along the column face.

Q.7 What is soil analysis?
Ans.Soil analysis is the testing of soil to determine the nutritional and elemental composition of soil. It is generally tested for knowing the contents of nitrogen, potassium and phosphorus.

Q.8 State the applications of modulus of elasticity?
Ans.Modulus of elasticity is related to the flexibility of the material. The value of modulus of elasticity is pretty important in case of deflection of different materials used in building construction.


Q.9 what is the difference between sill beam,Tie beam and plinth beam?( asked in l&T )

Ans 1 Sill beam:- flexural member
2 Tie beam:- fully compression member
3 plinth beam :- loading from bottom (soil mass) is UDL so
4 main reinforcement is in top of beam.

Q.10 The foundation in which a cantilever beam is provided to join two footings, is known as?

Ans..strap footing

Q).11 The foundations are placed below ground level, to increase?

Ans.

a. strength
b. work ability
c. stability of structure

Q. 12 Dado is usually provided in?

Ans..bath rooms

Q.13 What are the cause of failure or the error made in the design of the failed wall is ?

Ans.. The main reason of failure of a wall is overturning.

Q. 14 A flat slab is capable to withstand ?

Ans..A flat slab is capable to withstand concentrated loads.

Q.15 why we are using crank length in rcc slab reinforcement?

Ans. We used Crank lengths because the moments at the edge strips are negative while that at middle point are positive, so reinforcement are alternatively equipped at the top and bottom respectively. so just to make connection between the reinforcement and for the slab to behave like a single unit by providing continuous bars, cranking is have to done in slabs.

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