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CIVIL ENGINEERING TECHNICAL INTERVIEW QUESTIONS PDF

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Most Asked 92 Civil Engineering Interview Questions With Answers PDF century before the last century where the use of concrete technology is advanced . civil engineering interview questions and answers pdf download for Short All Technical Civil Site Engineer Frequently Asked Questions. 1) What are the responsibilities of a construction manager? Top 40 Civil Engineer Interview Questions & Answers . Download PDF.


Civil Engineering Technical Interview Questions Pdf

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FREQUENTLY ASKED QUESTIONS: CIVIL ENGINEERING AND. CIVIL ENGINEERING TECHNOLOGY. Why a career as a Civil Engineer or Engineering . Civil Engineering Presentations, topics discussions, structural engineering, exam preparation, interview questions for civil engineers,interview questions for. Civil Engineering Interview Questions & Answers. 1. What are the causes of building collapse? The PAssage of time is one reason. Buildings also collapse due.

Bridges, hydraulic presses, burners trains Will going from a 3-tap to 6-tap increase water pressure? No, the pressure will be the same, you will get more volume only if your pumps can handle the GPM, to increase pressure you may need a booster pump or a single pump that is rated for your needs. Why does the pressure increase under soil?

Soil pressure increases with depth due to the overburden or self-weight of the soil and due to loads imposed upon the soil. As depth increases, there will be a linear increase in the soil pressure. What is the distance between railway tracks?

How high should the water tank be to provide a 60 PSI at base of this water tower? What are the reasons for geotechnical site investigations in Uganda? To know the soil properties, in so doing be in position to determine whether the PArticular site is suitable for the purpose intended To know the history of the site To know what remedies need to be put in place before construction can start Based on the soil properties, that can be determined on site and in the lab, design the appropriate foundation for the structure.

What do you mean by honeycomb in concrete? Some people call it an air pocket in the concrete or a void. What is the purpose of the gap in the road on this bridge? Purpose of the gap in the road is to allow the road to exPAnd and contract with temperature changes without causing damage or deformation to the road.

What is the tensile strength of wood? The tensile strength of a material is the value at which the material fails when subjected to a tensile force. Tensile means a force pulling the wood fibers lengthwise, as opposed to a compressive force. There are a lot of different types and load cases for wood, so there is not one answer to this question. For example, wood used outside will fail at a lower load than wood inside.

Wood is also anisotropic, i. A good reference for material strength data for most species and grades of commercially available wood can be found in the American Institute of Timber Construction handbook. How many Lbs are there in a yard? A pound Lb is a unit of measurement for weight while a yard is a unit of measurement for distance.

If you are referring to common measurements used on a construction site, a yard is a common abbreviation for a cubic yard, which is a unit of measurement of volume. A cubic yard equals 27 cubic feet. Since dirt weighs about pounds per cubic feet, a cubic yard of dirt weighs about Lbs. Since concrete is heavier PCF , a cubic yard of concrete weighs about Lbs. What is a projection line? Projection line is the way, in which the earth is shown on a flat piece of PAper. What are moment of inertia and its importance in civil engineering?

The moment of inertia measures the opposition any kind of body will have against a certain momentum along that same axis trying to rotate that body. What is the origin of name Railway Sleepers? When sleepers were added below the railway, lines the trains ran more smoothly and people fell asleep on their journeys.

Does brick grows bigger every year. Usually bricks do not grow, but since stuff gets all over, it looks like it grows. How did street originate in the plumbing term street ell? A street ell may have gotten its name because it describes a 90 fitting PArticularly useful in tight, street ditches. When installing water pipes under a street, or from a water service, again under the street, into a home or business, this street ell allows one to change pipe direction with one less fitting, and in less sPAce, than with a standard ell.

What is the absolute pressure scale? Absolute pressure is calculated from a vacuum 0 PSI and atmospheric pressure is What is the difference between QA and QC? Many people and organizations are confused about the difference between quality assurance QA , quality control QC , and testing. They are closely related, but they are different concepts. Since all three are necessary to manage the risks of developing and maintaining software, it is important for software managers to understand the differences.

Note that the process of executing a system includes test planning prior to the execution of the test cases. How did the Romans get water up hills using aqua ducts? Technically, the Romans were not able to get water to move uphill in a general sense. All aqueducts move water from an elevated source spring-fed streams in the mountains to end-users at a lower elevation. The water flows almost entirely downhill from the source to the end user.

If the water needed to cross a valley, the Romans would build an arched structure with an elevated channel to cross the valley, but even this channel would have a vary slight downhill gradient that allowed water to flow towards the end user.

If a large hill was in their way, the Romans would either divert the channel around the hill, dig a trench through the hill, or dig a tunnel through the hill, all while maintaining a fairly constant, slight downhill gradient towards the end user. Take for example the general E value of mild carbon steel is about Gpa compared to about 70 Gpa for aluminum.

This simply translate that aluminum is 3 times flexible than steel. Define What is the difference between routing maintenance and major maintenance in school facilities? How are freeway bridges built? Drive carefully. Define What is the tallest man made structure in the world?

The worlds tallest man made structure is Burj Dubai which is meter tall. What is the worlds largest concrete dam? The Grand Coulee Dam is said to be the largest concrete dam. 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 What is braced excavation all about?

Excavations are braced to prevent the cave-in of surrounding unstable soil. What is the meaning of soil reinforcement? Soil reinforcement is the act of improving soil strength to enable it support or carry more load.

Two common examples are:. Define What is aggregate? Aggregate is the component of a composite material used to resist compressive stress. What year was the keystone power plant in Indiana County constructed? Define What is the force exerted by the Tacoma narrows bridge?

The force exerted to the Tacoma narrows bridge was initially the wind resistance. The wind resistance caused the whole bridge to act as a system with forced vibration with damping.

How do you calculate the power of a centrifugal pump? It can also be calculated by the 3-phase power equation: The output power, which really is not technically power, but rated in Gpm gallons per minute , or capacity should also be on the nameplate. It is now big deal to them, they will be happy to answer your questions. Why nautical mile is different from statute mile? One nautical mile is defined by one latitude minute of arc there are 60 such minutes to a degree.

This equals meters, and roughly but coincidentally yards or feet. The definition has since changed, but one statute mile equals about meters. Define What is rigging? In sailing, the ropes used to move the sails around so the boat will move in the right direction when the wind blows. What is absolute pressure? Absolute pressure is simply the addition of the observed gage pressure plus the value of the local atmospheric pressure. How do we calculate absolute pressure? Absolute is equal to gauge pressure plus atmospheric.

What is Gravity flow? Gravity flow is fluid flowing due to the forces of gravity alone and not to an applied pressure head. In the Bernoulli equation, the pressure term is omitted, and the height and velocity terms are the only ones included. What is the difference between engineering stress and true stress? In biology, Stress is something that disrupts homeostasis of an organism.

In engineering, Stress is an external force that pushes, pulls, twists, or otherwise puts force on something. Engineering stress assumes that the area a force is acting upon remains constant, true stress takes into account the reduction in area caused by the force. What are some structures that may be subjected to fatigue? Bridges, hydraulic presses, burners trains. Will going from a 3-tap to 6-tap increase water pressure?

No, the pressure will be the same, you will get more volume only if your pumps can handle the GPM, to increase pressure you may need a booster pump or a single pump that is rated for your needs. Why does the pressure increase under soil? Soil pressure increases with depth due to the overburden or self-weight of the soil and due to loads imposed upon the soil. As depth increases, there will be a linear increase in the soil pressure. Define What is the distance between railway tracks?

How high should the water tank be to provide a 60 PSI at base of this water tower? What do you mean by honeycomb in concrete? Some people call it an air pocket in the concrete or a void. What is the purpose of the gap in the road on this bridge? Purpose of the gap in the road is to allow the road to expand and contract with temperature changes without causing damage or deformation to the road. Define What is the tensile strength of wood?

The tensile strength of a material is the value at which the material fails when subjected to a tensile force. Tensile means a force pulling the wood fibers lengthwise, as opposed to a compression force.

Most Asked 92 Civil Engineering Interview Questions With Answers PDF

There are a lot of different types and load cases for wood, so there is not one answer to this question. For example, wood used outside will fail at a lower load than wood inside. Wood is also an isotropic, i. A good reference for material strength data for most species and grades of commercially available wood can be found in the American Institute of Timber Construction handbook. How many Lbs are there in a yard? A pound Lb is a unit of measurement for weight while a yard is a unit of measurement for distance.

A cubic yard equals 27 cubic feet. Since dirt weighs about pounds per cubic feet, a cubic yard of dirt weighs about Lbs. Since concrete is heavier PCF , a cubic yard of concrete weighs about Lbs. Define What is a projection line? Projection line is the way, in which the earth is shown on a flat piece of paper.

What are moment of inertia and its importance in civil engineering? The moment of inertia measures the opposition any kind of body will have against a certain momentum along that same axis trying to rotate that body. Define What is the origin of name Railway Sleepers? When sleepers were added below the railway, lines the trains ran more smoothly and people fell asleep on their journeys.

Does brick grows bigger every year. Usually bricks do not grow, but since stuff gets all over, it looks like it grows. How did street originate in the plumbing term street ell? When installing water pipes under a street, or from a water service, again under the street, into a home or business, this street ell allows one to change pipe direction with one less fitting, and in less space, than with a standard ell. What is the absolute pressure scale? Absolute pressure is calculated from a vacuum 0 PSI and atmospheric pressure is What is the difference between QA and QC?

Many people and organizations are confused about the difference between quality assurance QA , quality control QC , and testing. They are closely related, but they are different concepts. Since all three are necessary to manage the risks of developing and maintaining software, it is important for software managers to understand the differences.

They are defined below:. How did the Romans get water up hills using aqua ducts? Technically, the Romans were not able to get water to move uphill in a general sense. All aqueducts move water from an elevated source spring-fed streams in the mountains to end-users at a lower elevation. The water flows almost entirely downhill from the source to the end user. If the water needed to cross a valley, the Romans would build an arched structure with an elevated channel to cross the valley, but even this channel would have a vary slight downhill gradient that allowed water to flow towards the end user.

If a large hill was in their way, the Romans would either divert the channel around the hill, dig a trench through the hill, or dig a tunnel through the hill, all while maintaining a fairly constant, slight downhill gradient towards the end user.

The only exception to the rule of a generally constant downhill slope to the water channel is that specific tunnel segments, the Romans could build the tunnel as an inverted siphon mentioned above to cross a depression or valley and raise the water level on the downhill side almost to the level of the uphill side. To do this requires a well-sealed tunnel strong enough to withstand the increased water pressure within the siphon.

Note, however, that except for gaining a little bit of elevation if you slow down fast-moving water, you normally cannot get water to flow out of the outlet at a higher elevation than the inlet. Will Water damage concrete? As far as only concrete is concerned i.

The defects that water seepage induces in concrete are as follows:. How do you determine Specific gravity of cement? Cement is usually downloadd as a powdery substance that is mixed with sand, aggregate, gravel, and water to form concrete. Since the cement itself is usually a powder, it is hard to measure a standard value for its specific gravity. In addition, since cement is usually not used by itself, knowing its specific gravity is not particularly useful.

This includes the weight of the cement, sand, aggregate, and that part of the water that chemically binds with the cement to form the concrete. Since water weighs about Thus, the specific gravity of concrete is about 2. If you took cement and mixed it with water, you would eventually have a hard lump of useless cement and it would also have a specific gravity of between 2 and 2. Define What is the meaning of a blue land surveyors flag? This is required by law in each state to reduce the likelihood of damaging underground utilities when excavating.

What are advancements in civil engineering? Unlike other fields of engineering, the major advancement of the filed has been in the early years of the century before the last century where the use of concrete technology is advanced. The use of cement as a construction material is since the turn of the last century, improvement in the field increase by the use of steel elements in the construction of buildings and bridges of various types.

With the help of two, it was possible to do multistory buildings in the world. Machineries were created to speed up the construction structures. The last century has also seen the advent of sophisticated design to withstand the effect of earthquake that was not possible before. With the use of computers, development of model and analysis of structures under the effect of loads was made possible. Before just two decades, it used to take months and months to design high-rise building and big bridges.

Now it is a matter of hours.

Why is the statue of liberty made of copper? Copper is a very durable material when exposed to weather and is soft enough that it can be easily molded to curved shapes such as those in the Statue of Liberty. It is also traditionally used in buildings for complex roofs, so there would have been trades people available trained to use it.

Other metals that can be molded are lead but it does not have the attractive verdigris color, and gold much is more expensive. Are cruise ships built for the transatlantic run? The Queen Mary 2 was built for transatlantic crossings, but much smaller ships can make the crossing easily. Just about any seaworthy passenger ship can navigate the Atlantic safely, if not comfortably. Define What is diversion tunnel in a dam?

When a dam is to be built, a diversion tunnel is usually bored through solid rock next to the dam site to bypass the dam construction site. The dam is built while the river flows through the diversion tunnel.

What distance in meters on the ground is the equivalent of one second of arc in longitude or latitude? How do you maintain water pressure? If you have water pressure and wish to maintain it, do not cause flow in the line, which will reduce pressure due to friction.

To keep pressure up, reduce friction by increasing the line size or eliminating some other restriction. What are some facts about concrete? Actually, drying is not directly linked to hardness in concrete.

After concrete is poured, putting it in a wet environment by spraying it constantly with water will hasten its hardening and its curing. After concrete cures, it is hard. Where is the worlds longest elevator and how long is it?

Gold mines in South Africa go a few kilometers below the surface. The depth of the mine is well over m from the surface and is getting deeper.

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The lift itself descends m to a point m below sea level. It takes 4 minutes. How many kilo-Newtons equals kilogram? When the kg are at rest, on Earth with gravitational acceleration 9. How is the Leaning Tower of Pisa supported? In the same manner, it was supported when it was constructed. In the last couple of decades, the responsible parties rolled up their sleeves and removed something approaching 40 meters3 of earth from under the higher side of the structure.

This had the effect of straightening it toward the vertical by about a foot and a half at the top. For the first time in its history, it is no longer moving. In addition, in the good-news corner of the paper is that it is open to the public again. In addition, the folks who lived near the tower in the direction it was leaning have returned to their homes and do not have to sleep with an eye and an ear open.

What does civil engineering mean? They do many interesting things. Their job has to do a lot with design and construction. They can tell you what works and what will not for all sorts of situations. There is a lot of mathematics involved along with many other disciplines. They have to have a good solid understanding of how the environment works and how nature interacts with man made.

They are probably best known for designing bridges, interstates, skyscrapers, canals, and so forth. What is the biggest dam in America? How does siphoning work? Pretty good if the outside hose is a lot lower than the inside hose. The siphon works by a hose stuck in a fluid container higher than the receiving container. Suction is shortly placed on the lower side of the hose until the fluid is flowing down the down line. Gravity will cause a continued flow.

What is the quantity of cement in Mix M20 concrete? For nominal Mix Cement consumption for M25 will be kg per cum. What is the difference between shear and tensile strength?

Tensile Strength for a Bolt is determined by applying a Force along it long axis. Shear Strength for a Bolt is determined by applying a Force across its diameter, as it would be loaded in a lug joint.

Would you cause a gallon drum of water to weigh more by climbing in? A person will sink in water if he is not holding enough air in his lungs to keep him floating. Therefore, the person weighs more than the amount of water that he will displace. Who built the sears tower? While he did not build the structure he died in l , there is some evidence the idea was suggested under a different name Illinois Building by Frank Lloyd Wright, one of the few true skyscrapers in which he had a role.

The original design for the Illinois Building would have topped off at 5, Feet! The Swears tower is a quarter of this at most, but there are similarities. At what point does a circle start losing area when being flattened? The area ratio decreases slowly at first then more rapidly. Not hard to graph this but you will have to write the area of the ellipse in terms of the circumference. How do you compute volume of airflow? Orifice meter is used for measuring flow rate air. Define What is made from large rocks, which protects the base of cliffs?

Why are the bolts that hold steel rails together in oval holes? It has to do with the design of the bolts.

The reason that head of the bolt is oval. The head of a bolt fit flush into the bar and set in opposing sets is so that a piece of dragging equipment will not shear off all the bolts in a joint but rather the just the nuts one side.

As a result, if the hole were not oval on one side there would be no way to tighten or loose the bolts in a joint. Define What are the materials used in building a gravity dam? There are many gravity dams constructed of compacted earth. High dams are generally concrete. All dams require a spillway to be safe. The spillway must be armored. How many feet are in 4 square yards? There are 9 square feet in a square yard therefore there are 36 square feet in 4 square yards. What is the average density of soil?

For purposes of civil engineering , an average soil will have a density of about to pounds per cubic foot. This can vary a little depending upon how well compacted the soil is. Which architectural movement is also known as Jazz Moderna? Art nouveau. What is the withdrawal force of steel nails? In engineering, the code-allowable withdrawal force is zero, because the wood expands and contracts over time and the nail pullout force can reduce to zero.

What is the strongest bridge for a school contest? If you are making a spaghetti bridge, bunch it all together in a triangular prism or a big brick and just fill the gaps with paste. What is the formula for figuring out how many gallons of water are in a pipe by the foot?

What is the tensile strength of marble? Tensile Strength, Ultimate 7. For bending use: Modulus of Rupture 0. Did any of the Egyptian pyramids ever fall down?

Yes, many did. The great pyramid and others that have survived did so for a reason. Their shapes made them sturdier over time and were not the first design.

Many steppe pyramids were built but were too steep and as the corners eroded, the whole pyramid fell under its own weight. They were built too steep and did not have the base structure as seen in the great pyramid.

7 Civil Engineer Interview Questions and Answers

Can a wave happen in the middle of the ocean like in the movie Poseidon ? Rogue waves have been known to capsize ships. Define What materials were used to build the Golden Gate Bridge? Its materials were steel and concrete. What is the density of most of construction materials?

If it floats it is less dense than water, Concrete is lbs. How and where are aqueducts built? Aqueducts are built in areas where you have a bunch of motivated end users like a town or group of farmers at a low elevation in need of a more reliable source of water located somewhere fairly nearby at a higher elevation.

The aqueduct builders construct a series of canals, elevated channels, and tunnels as required to get the water from the source to the end users. Some good examples:. Define What does civil status mean? Civil means like, when you do not get on with someone, but only talk when you have to.

Alternatively, when you do talk you do not argue. Alternatively, if you are with someone who is of your both friends and family, you do not ruin it for them. How do you measure water flowing through mm diameter pipes? Same as in inches 3. Define the various stages of the project planning process in construction.

First stage could be Briefing and Inception. What is kn measurement? What are the advantages of building a dam on the river Nile? It is the same as building a dam on any river.

+ TOP CIVIL ENGINEERING Interview Questions and Answers

Dams are built to control flooding downstream during the wet season, generate power year round, and provide irrigation in the dry season. Define What are the uses of Groynes? They prevent, or slow down erosion, and stop long shore drift. This, however, can have bad knock-on effects somewhere near. What are the functions of a column in a building? Now days, many columns are used for decorative purposes. A column along with load bearing beams can support a lot of weight.

Define What is an ice dam sock? Roof ice dams are an annoying source of roof damage, leaks, and heat loss in the winter. The main causes are drip melt from improperly capped warm air vent pipes and poor roof insulation. Laying a ice melt sock onto the roof so it crosses the ice dam and overhangs the gutter, will melt through the snow and ice and create a channel for water to flow down into the gutters or off the roof.

If done properly those ice sickles that form as the snow melts from the edges of the gutters will never appear, they too are a cause of much damage and are dangerous to life and limb. Define What happens to Load at yielding? A yield strength or yield point is the material property defined as the stress at which a material begins to deform plastically. Prior to the yield point the material will deform elastically and will return to its original shape when the applied stress is removed.

Once the yield point is passed, some fraction of the deformation will be permanent and non-reversible. The yield point determines the limits of performance for mechanical components, since it represents the upper limit to forces that can be applied without permanent deformation. In structural engineering, this is a soft failure mode which does not normally cause catastrophic failure or ultimate failure unless it accelerates buckling. Yield strength is the critical material property exploited by many fundamental techniques of material-working: What is Critical path in Ms-Project?

The Critical Path consists of a series of tasks that must be completed on schedule for a project to finish on schedule. It is the series of tasks or even a single task that dictates the calculated finish date. Each task on the critical path is a critical task.

Irrespective of the type of reinforced concrete flexural element, the fundamental requirement is that tension reinforcement must be placed in that portion of the section which has tensile stresses.

Depending upon the type of element and loading, tensile stresses may not be on the same top or bottom edge of the section. But it is very easy to determine the portion of the length of the element where tension is at the top and where it is at the bottom, by studying the bending moment diagram of the element.

Reinforcement is placed on the compression side of the elements when it is required to increase the moment carrying capacity of the section beyond the limit possible for an under-reinforced section.

Replacing a portion of concrete in compression by steel results in the compressive force and adding a little extra tension steel to balance the additional compression makes it possible to increase the moment of resistance without increasing the depth of the section. Having said that, an inverted beam with slab flush with the bottom of the beam reverses the location of flange but not the bending moment distribution.

So, positioning of reinforcement would be the same as an a normal beam. But it has an impact on the amount of reinforcement because of the changed flange location. Define What is passive earth pressure?

Passive earth pressure is the highest limiting lateral pressure developed at the onset of shear failure by wall moving penetrating in the direction opposite to the direction of acting earth pressure minimal wall rotation necessary for the evolution of passive earth pressure is about 10 mrad, i. The program, however, assumes these values to be positive.

A seldom variant with friction acting upwards is not considered in the program. Which condition will prevail for the design of a swimming pool?

Depends on many factors — like in-ground vs above-ground — but both is a good answer — in-ground an empty pool has to withstand the force of the earth pushing on it. Both when filled have to handle the force of the water on the shape of the walls and bottom. Which is stronger solid steel rod or hollow steel pipe? There are a large number of firms that are currently looking for well qualified engineers to efficiently manage its activities.

But in order to qualify for the available posts, one must clear certain exams and interviews. In order to make the things easy, we have tabulated most asked Civil Engineering Interview Questions and Answers in pdf format which contains commonly asked and basic questions with their relevant answers as well.

These questions and answers have been provided in pdf format which can be easily downloaded on any of the smart devices. This discipline of engineering is considered to be one of the oldest sciences and has been in use long since the early ages of and BC in ancient city of Egypt. A well renowned practical use of civil engineering in the ancient times has been the highly applauded Indus valley civilization. Many examples as such prove the long lasting impact and reach of this fundamental science.

A student who is passionate about the fundamental science and mechanics behind any structural building is the ideal candidate to take up this science. Civil engineering gives the student the required skills to take on the problems of the society with principles of physics and math.Excavations are braced to prevent the cave-in of surrounding unstable soil. Sir plz send on my mail also. Software Testing. Kalenachirag yahoo. These are Most asked questions in All Interviews…so you can prepare these Questions and answers.

This type of foundation is helpful in reducing the amount of the settlement.

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