Civil Engineering Interview Questions

PCC means plain cement concrete . In this concrete reinforcement should be not provided. This are used by level the rough ground surface.

the only reason PCC is used below footing is to avoid the base of footing to come into direct contact with the sub surface.

Civil foreman is to inspect the work on the site

The civil formans job responsibility is to evaluate and direct work to acheive the required end result as per specifications and to deviate only when directed by project engineer.

Steel piles can be driven with very high capacity driving tools, depending on the site conditions. Hydraulic impact hammers are commonly used, but in many countries, where environmental aspects are of...

Basic difference exist in the manner in which they act on structure.wind forces are external and proportional to exposed area,earth quake forces are inertia forces resulting from distortion of found...

orientation of building is the proper placement of building and its component rooms with respect to the weathering elements as the sun,wind and rain and environment factors like topography, and enchanting views of landscape. it enables the inmates to enjoy desirable features of NATURE.

Orientation of the building is decided such that the effect of wind load is minimum

deflection exists due to compressive load & deformation due to tensile & copm.both forces

both are changes it original position

Methods to detect cracks in concrete are NEWS(Nonlinear Elastic Wave Spectroscopy), Template Matching , percolation algorithm method, Hessian-Driven Percolation methods..

Open graded aggregate contains only a small percentage of aggregate particles in the small range. This results in more air voids because there are not enough small particles to fill in the voids betwe...

Open graded aggregate is the base of single-sized, angular pieces it is washed to remove fines, stone size can vary between 3 in to ¼ in. It has Low-settling compaction, void spaces may constitute up...

adding to suji answer Le-Chatliers detects unsoundness due to free lime only. as per I.S specification cement having more than 3% magnesia shall be tested for soundness by "Autoclave" which is sensitive to both free magnesia and LIME.

Soundness of cement is the property of hardened cement paste undergoing large change in volume after setting without delayed destructive expansion. This destructive expansion is caused by excessive am...

Yes.

After 28 days of curing cubes will be tested for the maximum strength gain i,e >28mpa.

In flooring construction point of view VDF is The Vacuum Dewatered (VD) Flooring. It is a system for laying high quality concrete floors with superior cost-effectiveness.It is used in industries ...

Full form of VDF is Vehicle Damage Factor

PCC is plain cement concrete. it is done to provide a hard and level surface against the soft and undulation soil below the rcc foundation.

PCC is used in bottom of footing & plinth beam.

Quantity of concrete in work No. of samples 1-5 1 6-15 ...

For every 1cu.m of concrete 3 Cubes are tested
10cu.m-5cubes
25cu.m-10cubes are tested..

slope 1 in 40 is the gradient of slope given, if the length is 40 meter then the vertical length will be 1metre. for ex. for 200 meter slope will be 200/40.

Reinforcement /cement concrete roof means Roof casting after complete the reinforcement on shutring, in this mixture Called R C C roof Casting. Reinforcement work is so important for preparing the casting.

For Bearing Capacity, Plate load test is required to conduct and for soil density core cutter or sand replacement method is used.

Soil density is found by using core cutter method or sand replacement method. Similarly bearing capacity of soil can be found by using plate load bearing test.

Coping is the some shape given to the top of wall because of which the rainwater flows down due to slope and protect the wall from the water. Also it improves the appearance.

Coping: It is an unit or assemblage placed at the head of wall and designed to shed rain water from the top of the wall clear off all exposed surfaces of the walling beneath. effective and good coping will act as a
1. Shedding water
2. Frost resistant unit
3. Continuous rigid cavity closer

Fly ash (70%) Lime (10%) Gypsum (5%) and Sand (15%) For fly ash brick.

Fly ash 50%-60%, sand/stone dust/quarry dust 30%-40%, O.P.C 8%-10%

3%-4% can beused

Since it is not an ordinary type of cement.Generally OPC cements are been used for construction with grades 33G,43G &53G

PPC does not have any grade, only OPC have a grade.

According to IS 456-2000,development length will be 50 dia.

Development length is nothing but an embedment length. It is about 50 or 60 times the diameter of bar. There is one formula for development length = dia. x sigma s / 4 tou.bd.

Fineness is tells about the particle distribution of cement. Fineness of is cement expressed in terms of total surface area of unit weight of of cement. Tests 1) Sieve analysis ------->I.S.sieve ...

Fineness of cement can be determine by Sieve analysis test.