# Civil Engineering Interview Questions

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#### Estimate of RCC Concrete Slab

What is the cost estimate for building a 600 sq. ft. RCC Slab, including Sand, Cement, Metal, Steel and Labour?

#### asif

• Apr 11th, 2018

28 length and 15 breath with 8 mm steel and 6" c/c distance steel weight will be 207 kg

#### DHROJ SALMAN

• Nov 1st, 2016

If 28 feet length and 15 breath, so required steel 125kg.

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#### Concrete Cube Compressive Test

What is the formula for concrete cube compressive test by Accelerated Curring Tank (ACT) method?

#### James Thang

• Jul 13th, 2021

22.5 is KN/mm2 and 22500 is N/mm2. So 1000 is conversion of Kilo meter.

#### chandan kumar singh

• Jul 18th, 2019

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#### Steel quantity by thumb rule

How can we get the steel quantity by thumb rule ? I know that it is 1% for slab and 2-3% for RCC column & beams. If I have 10 Cum RCC work for column & beam then how can we get the steel quantity in kgm or Qntl.?

#### Qaisar Abbas

• Apr 21st, 2021

My concern is why we are taking density of steel. I think density of concrete is more relevent. Density of concrete is Density of concrete is 2400 kg/m3 and steel is Density of steel is 7850 kg/m3

#### Akshay kamble

• Oct 18th, 2019

Answers are different According to percentage of steel.
1)If I take 2% of steel,then answer is 1570kg.
2) If I take 2.5%,then answer is 1962kg.
3) If I take 3% ,then answer is 2355kg.

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#### Srikanth

• Nov 14th, 2020

Face Right is when the vertical angle of an instrument is in the right of the observer & Face Left is when the vertical angle of an instrument is in the left of the observer while taking the readings

#### vellingiri

• Nov 5th, 2015

Vertical values measuring at the face of left and right angle equal to check

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Why is the grade of PPC cement is not mentiond or defined as per Indian Standard" IS 1489-1991.

• Aug 16th, 2019

PPC cement made from OPC cement by adding fly ash 20% 30%, so it is equal to 33 grade.

#### Sanchit garg

• Aug 11th, 2015

When we add fly ash to make PPC then its strength is not fixed.
More you do curing more you get strength, moment you stop curing strength will stop that place. Where as in OPC highest strength is fixed to a mark. that is why OPC has grading but PPC dosen't have.

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#### Earth Quake Engineering

Which of the following helps Assam type building to remain intact during an earthquake,

(A) RCC bands.

(B) Tie beam.

(C) Frame action.

(D) Footing.

#### Amit pal(civil.engineer)

• Mar 29th, 2019

D) Footing

• Mar 14th, 2016

D) Footing

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#### sathwika

• Jan 29th, 2019

It is essential that the cement concrete does not undergo large changing in volume after setting this is ensured by limiting the quantity of free lime, magnesia in whole cement.

#### B. NARENDRA

• Oct 23rd, 2018

Specific gravity of cement to conduct the material was sink or float

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#### What is fineness of cement?

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

#### sathwika

• Jan 29th, 2019

The degree of fineness test of cement is the measure of means size of the grinds in it.

#### Ganesh karthikeyan

• Mar 26th, 2018

Fineness of cement indicates the practical size of cement and specific surface area.
Fineness means the surface area of cement is available for chemical reaction with water (heat of hydration)

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

#### sathwika

• Jan 29th, 2019

33,43,53

#### sonu kumar

• Feb 8th, 2018

OPC-33
OPC-43
OPC-53
OPC-63
*OPC -53 is the best of the concreting work.

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#### Concrete and Steel Forumla

What is the formula used to calculate 1. Steel and 2. Concrete

#### Arun kumar

• Apr 6th, 2018

For steel =D2/162 where d =diameter of steel

#### amer

• Dec 14th, 2016

For calculating concrete L x B x H and for calculating steel we use D2/162

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#### Concrete technology

What kind of pump is commonly used in concrete pumping?

#### vijay kumar

• Feb 13th, 2018

Concrete Boom Pump

#### vipin os

• Dec 29th, 2014

Piston pump

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#### RAVISHANKAR

• Jan 22nd, 2018

1sqm plaster in cement

#### 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.

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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 13th, 2017

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

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