# Civil Engineering Interview Questions

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#### Tufan Ali .btech in civil

• Jan 14th, 2018

OK The ratio of M-20 is 1:1.5:3=5.4 (sum of ratio) right. Then 1m3 concrete, the dry volume of concrete is 1.54. So total dry volume of component is 1.54 Find out quantity of cement is (1.54*1)/5.5=...

#### Jagannath jagtap

• Oct 31st, 2017

It is dependent on W/C ratio suppose we take a m25 that is 0.45 W/C ratio and firstly calculate cements in kg ex m25 - 350 kg and multiply 0.45 = 157.5 litre water add

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#### Least Count

What is mean by least count? Tell the least count of dumpy level and theodolite?

#### Dhanavath kirankumar

• Jan 8th, 2018

The smallest measurement which can be measured by an instrument is known as least count. The least count of dumpy level depends on the readings on staff. Generally we use 5 mm least count staff, so th...

#### jibanjyoti routray

• Nov 12th, 2017

Least count of auto level is 0.5mm and dumping level is 0.5mm

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How can we calculate 4/6 lane road width and maximum percentage of super elevation in National Highways in India.

#### Vijaykumar

• Jan 6th, 2018

Is it 107 feet from divider or 140 feet

#### srinivas

• Dec 28th, 2016

In four way lane road in India, how much length distance from center of the road one can construct a new building? (Answer in feet length).

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#### Shear Walls and Core Walls Reinforcement Details

What is the maximum ratio steel used in Shear Walls and Core Walls?

#### Ahbishek singh

• Dec 23rd, 2017

Wall-40 mm , Slab - 20mm,
C40 is a concrete mix design,
Ratio can be 1:1.5:3

#### Senthil Kumar

• Mar 2nd, 2016

What is wall and slab cover size?
Components of C40 concrete and ratio?

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#### Duties and Responsibilities of Civil Site Engineer

What are the duties and responsibilities of civil site engineer in road and building construction?

• Member Since Apr-2009 | Apr 8th, 2009

While in duty of supervision of building, you should ensure that the concrete mixing is according to the grade specified. While supervision of road, you should ensure that the different layers of the road are laid in proper thickness.

#### Rakesh

• Dec 27th, 2017

Role of Civil engineer: Taking leveling as per the drawing, studying the drawings properly - during the excavation before constructing any structure Checking the Quality of materials like cement, s...

#### Mohammed fazal

• Mar 23rd, 2017

1) Executing the work by given drawing and specifications 2) Quality control in work 3) Give quality assurance in each and every work 4) Checking the grade of concrete and size of steel in R.C.C str...

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Is there any grade for PPC? If not, why?

#### sujay

• Dec 13th, 2017

PCC doesn't have any grade. Only OPC has grade which is equal to 33

#### j.Srinivasn

• Dec 4th, 2017

M5-1:5:10 M10-1:3:6 are Grades of PCC in Practices
M7.5-1:4:8

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#### Why we need to do PCC?

• Nov 30th, 2017

First is the compaction sub base may contain deleterious substances, alkaline, harmful salts etc. which will causes corroded the reinforcement of RCC. No.2 -is it may porous & the cavity would soak wa...

• Oct 12th, 2017

Whether PCC and RCC to be done in same day?

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#### Expansion Joint

We had Constructed the RCC Building both Ground and First Floor of length 265 Feet without Expansion Joint. What will happened?

#### j.srinivasan

• Dec 4th, 2017

As per standard, we need to provide the expansion joint at every 30m, if not provided, cracks will appear.

• Sep 17th, 2016

Cracks will appear

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#### What is fineness of cement?

What are the type of tests and name of test equipments?

#### Meghana

• Dec 1st, 2017

Fineness represents the surface area of the cement available for chemical reaction with water i.e., heat of hydration

#### Lakshmi narasimman

• May 29th, 2017

Fineness of cement: Blaine air permeability test - The fineness of cement is measured as a specific surface by observed time taken for a fixed quantity of air flow through compacted cement bed specifi...

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#### What is TMT steel?

Explain its properties..

#### Venukumar

• Nov 17th, 2017

Thermo-Mechanical Treated

#### suji

• Mar 7th, 2012

TMT means Thermomechanical Treatment of steel. Its a process of simultaneous application of heat and a deformation process of metal, in order to change its shape and refine the microstructure. Hot...

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#### VDF

What is the VDF?

#### P.Natarajan

• Nov 16th, 2017

VDF- Vacuum Dewatered Flooring

#### Amit Kumar

• Mar 11th, 2017

VDF means Vacuum Dewatered Flooring

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#### Prathamesh Kulkarni

• Nov 8th, 2017

In Half Brick Thick wall, the measurement is in square meters. Hence Volume of Bricks required for 1 sq m of brickwork needs to be calculated for the payment of the lead of that volume of bricks.

#### JUNAID

• Sep 21st, 2017

It depends upon the size of bricks. for example thickness of wall is 0.115 . size of bricks is 0.230x0.75x0.115 so, 0.115mm = thickness 1.0 = length 1.0 = height so calculate the thickness x leng...

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#### Compressive Strength of Concrete

What is the effect of mix ratio (cement:sand:aggregate) in strength of concrete?

#### Ratha Reddy

• Nov 8th, 2017

Compressive strength of concrete depends on grade size. For 28 days it should reach minimum its grade. For example 20 grade compressive strength for 28 days is minimum 20kn(100%). For 7 days around 65%

#### Arvind kumar

• Oct 6th, 2017

Compressive strength of cube = 1.25 cylindrical strength
compressive strength of concrete is tested by 150?150 mm

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#### How to increase bearing capacity of soil?

rzaman68

• Member Since Jan-2009 | Jan 25th, 2009

To improve the bearing capacity of soil, one of the following methods can be used.

1. Vibro Floatation Technique

2. Repalce the existing soil with road base materials and compact in layers to attain the required bearing capacity of soil.

3. Replace the existing soil with cement mix soil and compact in layers with water to attain the required bearing capacity.

4. Vibro Replacement Technique

#### Shiva Kant

• Nov 1st, 2017

We can increase the capacity of soil by decreasing the area of the footing.

#### rzaman68

• Jan 25th, 2009

To improve the bearing capacity of soil, one of the following methods can be used.1. Vibro Floatation Technique2. Repalce the existing soil with road base materials and compact in layers to attai...

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#### What is workability in concrete?

• Oct 3rd, 2017

Simple, the easiest work on concrete without bleeding and segregation and place easy is called workability of concrete. There are three methods are use to determine workability of concrete 1 slump cone test 2 compaction factor test 3 vee bee test.

#### Abdurahman shahidi

• Jun 29th, 2017

The ease with which a concrete can be mixed, placed and finished. Wet concretes are workable but weak. Workability can be measured by the slump test, the compacting factor test, and by the V.-B. Consistometer test.

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