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Civil Engineering Interview Questions and Answers will guide your now that Civil engineering is a professional engineering and discipline that deals with the design, construction and maintenance of the physical and naturally built environment. Civil Engineering Interview Guide will describe that including works such as bridges, roads, canals, dams and buildings. Learn Civil Engineering by Civil Engineering Interview Questions and Answers Guide.

117 Civil Engineering Questions and Answers:

1 :: What are the causes of building collapse?

The PAssage of time is one reason. Buildings also collapse due to weak foundations. Earthquakes, hurricanes and other natural disasters can also damage the structure of the buildings and cause it to collapse. Bombings or demolition of buildings is also other reasons.

2 :: What are the applications of modulus of elasticity?

As the term implies, "Modulus of Elasticity” relates to the elasticity or "flexibility" of a material. The value of modulus of elasticity is very much significant relating to deflection of certain materials used in the construction industry. Take for example the general E value of mild carbon steel is about 200 GPA comPAred to about 70 GPA for aluminum. This simply translate that aluminum is 3 times flexible than steel.

3 :: What is the difference between routing maintenance and major maintenance in school facilities?

The routine maintenance is the minor and consistent rePAirs that are engaged in the school premises. Examples could include PAinting, replacement of fixtures, louver blades, furniture rePAirs, and PAtching cracks in the school buildings.

The major maintenance could also be a total rehabilitation of the school, either school buildings or any other project within the school community. It could be total restructuring of the lighting system in the school or sanitary system.

4 :: How are freeway bridges built?

After calculating the anticiPAted traffic for the bridge, cement/reinforced- with- rebar stanchions are sPAced over the freeway to accommodate the bridge. An 'off-ramp' from the freeway to the bridge is constructed, as is an 'on-ramp' to the subsequent road. Cement/rebar slabs are built and lifted with cranes to form the platform, and voila! Drive carefully.

Although the bridge deck/roadway is almost always a concrete slab, the structure that holds up the bridge deck can be reinforced concrete, structural steel, or a combination of steel and concrete.

5 :: What is the difference between absorption & adsorption and sorption?

Absorption generally refers to two phenomena, which are largely unrelated. In one case, it refers to when atoms, molecules, or ions enter some bulk phase - gas, liquid or solid material. For instance, a sponge absorbs water when it is dry.

Absorption also refers to the process by which the energy of a photon is taken up by another entity, for example, by an atom whose valence electrons make transition between two electronic energy levels. The photon is destroyed in the process. The absorbed energy may be re-emitted as radiant energy or transformed into heat energy. The absorption of light during wave proPAgation is often called attenuation. The tools of spectroscopy in chemistry are based on the absorption of photons by atoms and molecules.

Adsorption is similar, but refers to a surface rather than a volume: adsorption is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or, more rarely, a liquid (adsorbent), forming a molecular or atomic film (the adsorb-ate). It is different from absorption, in which a substance diffuses into a liquid or solid to form a solution.

6 :: How do you measure concrete?

Cubic feet, Cubic yards, Cubic Meter

7 :: Which is stronger solid steel rod or hollow steel pipe?

On a per pound basis, steel pipe is stronger in bending and is less likely to buckle in axial compression.

8 :: What is the tallest man made structure in the world?

The tallest man made structure is the KVLY-TV mast which is 2063 feet tall. The worlds tallest man made structure is Burj Dubai which is 800 meter tall.

9 :: What are the uses of alloys in daily life and how are alloys made?

Alloying is not always done to produce a 'superior' material, but to produce materials having a desired requirement in the industry or elsewhere. A classic case is of lead solder (containing lead & tin), in which the melting point of the constituent elements are lowered, not necessarily a desirable property.

Alloying can be carried out using hot press method (a sheet of material is sandwiched with alloying material), rolling the heated base metal in a drum full of alloying metal powder, using hot spraying, galvanizing (dipping the base in a molten solution of alloying material) etc. Sometimes the alloying material is added in small proportions to the molten base metal (e.g., in production of different types of steel).

10 :: What is the worlds largest concrete dam?

The Grand Coulee Dam is said to be the largest concrete dam. Currently the world's largest concrete dam is the Itaipu Dam, an accomplishment of two neighboring countries, Brazil and PAraguay in South America.

Though it is not finished yet, the Three Gorges (or Sandapong) Dam on the Yangtze River in China will take over as the largest upon its completion, which is slated for 2009.
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