Top 50 Civil Engineering Interview Questions In 2021

What are the steps in Building Construction?


PCC (Plain Cement Concrete)

Footing Foundation

Plinth Beam

earth Fillings in Plinth

DPC (Damp Proofing Course)

Column Construction

Brick Wall Construction

Stair Construction

Beam and Slab Casting

Lintel and sill work of door and windows



pointing and Finishing

Electrical Fittings

plumbing Fittings

paintings work



How do you measure the volume of concrete?

The volume of concrete is calculated by Multiplying its Length, Width, and Thickness together.



Why concrete cover is provided for reinforcement?

A concrete Cover for reinforcement is required to protect the rebar against corrosion and to provide resistance against fire.



How to do check level on construction site?

I will check the the level on construction site by spirit level (leveling staff), Auto level, and Levelling pipe.



What is the accuracy of the dumpy level or minimum reading we can take?

with the help of a dumpy level, we can take up 5mm accurate reading or minimum reading.



How do you Calculate Unit Weight Steel Bars on-site?

Unit Weight of Steel can be calculated by using the formula:

= D^2 / 162 Kg/m



How do you calculate the weight of 10mm dia, And 12m long steel bars on-site?

I can calculate by Multiplying the unit weight of 10 mm dia. Steel with Length,

Weight= Unit Weight x Lenght

Weight= (D^2 / 162) x 12

Weight= (10^2 / 162) x 12

Weight= 0.617 x 12

Weight= 7.40 Kg



What is the size of a concrete cube?

Ans: 15 cm x 15 cm x 15 cm



What do you do if any concrete cube fails in 28 days of the compressive strength test?

If the concrete cube fails in the strength test, I will conduct a core cutter test on concrete and send a report to higher authorities.


What is the mix ratio for the M-20 Grade of concrete?

For M-20 Grade of concerete Mix ratio = 1 : 1.5 : 3



What is the density of steel?

7850 kg/meter cube



In Fe – 415 steel grade, 415 indicates the—————–of steel.

Tensile strength



What is the volume of a 50 kg bag of cement?

0.035-meter cube.



In residential Buildings, Average value of stair width?

900 mm


The slope of the stair should not exceed.

40 degree.


Minimun diamtere main steel in column.

12 mm



What is the Standard Size of Brick?

19 cm x 9 cm x 9 cm



What is the Unit Weight of RCC?

2500 kg/ meter cube.


One Acre = ——— Sq ft.

43560 sq. ft.



What is the Full Form of UTM?

Universal Testing Machine



After How many times does Cement Expire?

3 Months



A first-class brick should not absorb water more than?




Number of Bricks used in 1 Cubic meter of Brickwork?

500 Nos.



What is The Normal Consistency of portland cement?



The Expansion in Portland Cement is tested by……….

Soundness Test



What is 53 in Cement 53-Grade?

It indicated the strength of cement 53 N/mm^2.



What is the Minimum Grade of Concrete used For RCC?



What is the full form of EIA?

Environmental Impact Assessment



What is the Full From of DPR?

detailed project report.



What is the initial and final setting time for OPC cement?

Initial setting time= Less than 30 min

Final setting time= 600 min.



Convert 1 Square Meter to sq ft.

10.76 Sq ft.



What is the unit weight of 25 mm Steel Bars?

3.85 kg/m



one hectaare = ——– Acres.

2.47 Acres.



One Gallon = ——– leters

3.78 Liters


one kilonewton is equal to ———kilograms

101.97 kg




One Tonne is equal to ————–kilograms.

1000 kg.



maximum Free fall of concrete allowed is ——–.

1.5 meter.



what is the full form of ACC?

Autoclaved Aerated Concrete.




What are the minimum bars in the circular column should be———–?

6 Nos.


What is the full form of NDT?

Non- Destructive test


What is the Full Form of JCP?

Joseph Cyril Bamford



What Test is conducted to determine the bearing capacity of the soil?

Plate load test.



Ring and ball test is conducted on which construction materials?



Minimum hook length as per IS code?

75 mm or 9d

d= diamterer of bar


what is the extra length in a bent-up bar?

0.45 X



What is Structural Design Software?

Autodesk AutoCAD

STAAD pro.




Autodesk Revit




What is the full form of EGL?

Existing Ground Level.


Friends This is very helpful to you. If you like please shear with your friends. this is the most important to the civil engineering interview questions. Also, visit the blog to get best the best knowledge of engineering. thank you.


Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

error: Content is protected !!