Civil Engineering Interview Questions You Should Prepare For

Question. What are the key steps involved in constructing a building?
Ans. There are different steps involved in Building construction like
a. Concreting
b. Masonry work
c. Plastering work
d. Flooring work
e. Formwork
f. Steel cutting and Bending

Question. How is the volume of concrete measured?
Ans: The volume of concrete is calculated by Multiplying its Length, Width, and Thickness together. For Example – 1m x1m = 1 m³ of volume of concrete.

Question. Why Concrete Cover is provided for reinforcement?
Ans: Concrete cover for reinforcement is required to protect the rebar against corrosion and to provide resistance against fire.

Question. How do check the level on the construction site?
Ans: I will check the level on the construction site by Spirit level, Dumpy Level, and Leveling Pipe.

Question. What is the accuracy of the dumpy level or minimum reading we can take?
Ans: With the help of a dumpy level, we can take up
5mm accurate reading or minimum reading.

Question. How do you calculate the weight of 12m long and 10mm dia? Steel on-site?
Ans: It’s simple,
By multiplying the length of the steel bar with its unit weight
(Unit wt. of 10mm = 0.60 kg/m)
Weight of steel = 0.60x 12 = 7.2 kg

Question. What is the equation used for calculating the unit weight of the steel bar?
Ans: (D²/162)

Question. What is the size of a concrete cube?
Ans: 15 cm x 15 cm x 15 cm

Question. What do you do if any concrete cube fails in a 28-day compressive strength test?
Ans: If the concrete cube fails in the strength test, I will conduct a core cutter test on the concrete and send a report to higher authorities.

Question. What is the mix ratio for M – 20 Grade of concrete?
Ans: For M20, the Mix ratio is 1: 1.5: 3

Question. What is the Unit weight of 12 mm Steel Bars?
Ans: 0.89 kg/m

Question. What is the Density of Steel?
Ans: 7850 kg/m³

Question. In Fe – 415 Steel Grade, 415 indicates the___________of Steel.
Ans: Tensile Strength

Question. What is the Volume of a 50 kg bag of cement?
Ans: 0.035 m³

Question. In Residential Buildings, the Average Value of Stair Width?
Ans: 900 mm

Question. The Slope of the Stairs should not exceed.
Ans: 40º

Question. Minimum diameter of steel in Column.
Ans: 12 mm

Question. Standard Size of Brick?
Ans: 19 cm x 9 cm x 9 cm

Question. What is the Unit Weight of RCC?
Ans: 2500 kg/ m³

Question. One Acre = ____________Sq. ft.
Ans: 43560 Sq. ft.

Question. What is the Full Form of UTM?
Ans: Universal Testing Machine

Question. Cement Expire After?
Ans: 3 month

Question. One square meter = _ Sq. ft?
Ans: 10.76 Sq. ft

Question. What is the unit weight of 25 mm Steel Bars?
Ans: 3.85 kg/m

Question. One Hectare = _______Acres
Ans: 2.47 Acres

Question. One Gallon = ________Liters
Ans: 3.78 Liters

Question. One kilo newton is equal to _ kilograms
Ans: 101.97 KG

Question. One Tonne is equal to _ kilograms
Ans: 1000 KG

Question. Maximum Free fall of concrete allowed is______?
Ans: 1.5 m

Question. Instrument used for level work on a construction site?
Ans: Dumpy Level

Question. Minimum Bars in Circular Column Should be_______
Ans: 6 Nos.

Question. What is the Full Form of AAC?
Ans: Autoclaved Aerated Concrete.

Question. What is the Full Form of NDT?
Ans: Non – Destructive Test

Question. What is the Full Form of JCB?
Ans: Joseph Cyril Bamford

Question. Which Test is conducted to determine the bearing capacity of Soil?
Ans: Plate Load Test

Question. Ring and ball test is conducted on which construction material?
Ans: Bitumen

Question. Minimum hook length as per IS Code?
Ans: 75 mm

Question. What is the extra length of bent-up bars?
Ans: 0.45

Question. What is the Least Count of Dumpy?
Ans: 5mm

Question. What is Full of EGL?
Ans: Existing ground level.

Question. A First Class Brick Should Absorb Water More than?
Ans: 20 %

Question. What is the number of bricks used in 1 cubic meter of brickwork?
Ans: 500 Nos.

Question. The Normal Consistency of Portland Cement?
Ans: 25 %

Question. The Expansion in Portland cement is tested by…
Ans: Soundness Test

Question. According to the IS Code, is the full strength of concrete achieved after?
Ans: 28 Days

Question. What is the Volume of 1 bag of cement?
Ans: 0.035 m³

Question. Minimum Grade of Concrete Used For RCC?
Ans: M – 20

Question. Cement Expire After?
Ans: 3 month

Question. What is the Full Form of DPR?
Ans: Detailed Project Report

Question. What is the initial and final setting time for cement?
Ans: Initial: Less than 30 min and 600 min.

Question. What are the Responsibilities of a Construction Manager in the project?
Ans:
a. Responsibilities of a Construction Manager in the project
b. Supervising the construction Site.
c. Estimate the proper cost of the project
d. Purchasing the materials required for construction before work begins.
e. Purchasing the materials required for construction before work begins.
f. Analyzing the proposals.
g. Construction Scheduling & Monitoring