Questions and Answers for Civil Engineering Interviews
What is the definition of civil engineering?
Civil engineering is a professional engineering subject concerned with the design, development, and maintenance of the physical and naturally created environment, such as roads, bridges, canals, dams, and structures. It is concerned with the constructed environment and may be traced back to the first time someone put a roof over their head or crossed a river by laying a tree trunk.
What exactly does civil engineering involve?
They engage in a variety of intriguing activities. Their profession entails a great deal of design and building. There is a lot of arithmetic involved, as well as a number of other fields. They must have a comprehensive understanding of how the environment functions and how natural and man-made systems interact. Bridges, interstates, skyscrapers, canals, and other structures are probably their most well-known works.
What causes a structure to collapse?
One factor is the passes of time. Weak foundations can also cause buildings to collapse. Earthquakes, hurricanes, and other natural calamities can cause structures to collapse due to structural damage. Other factors include bombings or building demolitions.
List the various processes involved in the concreting process?
The following are the main steps in the concreting process:
- Concrete batching
- Concrete mixing
- Concrete transport and placement
- Concrete compacting
How would you describe the soundness of concrete?
What are the several civil engineering sub-disciplines?
- water Resources Engineering
- Construction Engineering
- Engineering and materials science
- Earthquakes Engineering
- Planning and development
- Environment Engineering
- Geotechnical Engineering is the study of the foundations of buildings.
- Engineering of Structures
- Transportation Planning and Design
- Urban or Municipal Engineering
What does the term "grade" mean in the context of cement?
A grade is a number that represents the cement-sand mortar mix's minimum compressive strength after 28 days. For example, OPC 43 cement, OPC 53 cement, and so on. After 28 days of setting, the maximum number of grades indicates the cement's maximum compression strength.
What exactly is concrete?
Cement, sand, stone aggregates, and water are all used to make concrete. Depending on the type of construction, the proportions of the ingredients are mixed. Depending on the type of construction, the proportions of the ingredients are mixed.
What is concrete's unit weight?
Concrete's unit weight varies based on the type of aggregates used and the quantity of voids present. PPC has a unit weight of 24 KN/m3, while RCC has a unit weight of 25 KN/m3, according to the Indian Standard.
What is the weight of steel per unit?
Steel has a unit weight of 7850 kg/m3. Steel density is another name for it.
What is the usual stairwell slope?
The slope or pitch of the stair should be between 25 and 40 degrees, according to international standards.
What are the most common causes of building collapse?
There should be a variety of reasons for a structure's collapse.
As an example: Passing of Time. Foundational flaws Natural disasters such as earthquakes, hurricanes, and other natural disasters Building collapse can also be caused by other factors such as bombing or war destruction.
What does the term "seepage" in construction mean?
Seepage is the slow percolation of water through the soil.
For each grade, what is the nominal concrete proportion?
The concrete proportions for each grade are as follows:
- M30 = 1:1:1
- M25 = 1:1:2
- M20 = 1:1.5:3
- M15 = 1:3:4
- M10 = 1:3:4
M20 = 1:1.5:1
Where, a letter M is used to denote the Mix.20 denotes the Characteristic Compressive Strength of 150 MM cube at 28 days in N/MM2 (Newton/millimetre2).
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