05/11/2025
Practical Civil Engineering Interview Questions and Answers (Professional Practice)
1. How would you control segregation while pouring concrete for a 3 m deep column?
Use proper mix design, limit free-fall height to < 1.5 m, pour using a tremie or chute, and ensure proper vibration without over-compaction.
2. What will you check before concreting a footing?
Formwork alignment, reinforcement cover (minimum 50 mm), blinding surface cleanliness, reinforcement placement, concrete mix approval, and presence of water-proofing if required.
3. If concrete cubes fail at 7 days, what will you do?
Stop further concreting in that section, review mix design and batching, test 28-day cubes, perform NDT (rebound hammer or UPV), and consult the structural engineer for remedial action.
4. How do you ensure concrete curing on a bridge deck in dry weather?
Apply curing compound immediately, then cover with wet hessian and maintain moisture continuously for 14 days.
5. What precautions do you take while placing reinforcement in waterlogged areas?
Use spacers to maintain cover, keep bars clean and rust-free, dewater the pit, and use anti-corrosive coating or epoxy bars if necessary.
6. If you observe honeycombing after shutter removal, what is the corrective action?
Chisel out loose material, clean the area, and patch with a rich cement-sand mortar (1:2) or approved repair compound.
7. How do you check the alignment of a bridge pier or abutment during construction?
By total station or theodolite, referencing the control points and coordinates from the approved setting-out plan.
8. What test will you conduct before using new aggregate in site concrete?
Sieve analysis, crushing value, impact value, water absorption, and specific gravity tests.
9. During pile installation, what parameters should be recorded?
Pile depth, pe*******on rate, hammer energy or torque, concrete volume, reinforcement cage length, and groundwater condition.
10. What action do you take if there is a cold j
