Technical practice questions
Civil Engineering Interview Questions
Real Civil Engineering interview questions with answers. Filter by sub-field and difficulty, then drill them in practice mode.
Showing 34 of 34 questions
Beginner
Fundamentals, definitions, expected of any candidate
Intermediate
Applied reasoning, design tradeoffs, calculations
Advanced
Deeper scenario / system-design questions and edge cases (stretch material)
BeginnerFundamentals
Why is steel reinforcement used in concrete?
fundamental knowledgereinforced concretetensionrebar
BeginnerFundamentals
Why do you apply load combinations in design?
fundamental knowledgeload combinationsASCE 7codes
BeginnerFundamentals
What is factor of safety / how is design safety handled in civil?
fundamental knowledgeLRFDASDsafety factor
BeginnerFundamentals
What are shear force and bending moment in a beam?
fundamental knowledgeshear forcebending momentbeam
BeginnerFundamentals
What is soil bearing capacity and why does it matter?
fundamental knowledgebearing capacitysoilfoundation
BeginnerFundamentals
What is the slump test and what does it measure?
fundamental knowledgeslump testworkabilityconcrete QC
BeginnerFundamentals
Difference between load-bearing and framed structures?
fundamental knowledgeload-bearingframed structure
BeginnerFundamentals
Difference between shallow and deep foundations?
fundamental knowledgeshallow foundationdeep foundationpiles
IntermediateStructural Design
Steel vs. reinforced concrete, how do you choose?
steelconcretematerial selectiontradeoffs
IntermediateStructural Design
What is the slenderness ratio and how does it affect columns?
slenderness ratiobucklingcolumnsEuler
BeginnerStructural Design
Difference between a pinned and a fixed connection?
connectionspinnedfixedmoment
IntermediateWater & Environmental
Explain the difference between water supply and stormwater/wastewater design goals.
water supplystormwaterwastewaterhydrology
IntermediateWater & Environmental
What is BOD and why does it matter in wastewater treatment?
BODwastewaterdissolved oxygentreatment
IntermediateTransportation
What factors govern geometric design of a roadway?
geometric designsight distanceAASHTOdesign speed
BeginnerTransportation
What is level of service (LOS) in traffic engineering?
level of serviceLOScapacitydelay
BeginnerStructural Design
What is concrete segregation and how do you prevent it?
segregationconcreteplacementworkability
IntermediateStructural Design
Why is curing important and when can formwork be removed?
curinghydrationformwork removalstrength
IntermediateStructural Design
What's the difference between a one-way and a two-way slab?
one-way slabtwo-way slabreinforcement
IntermediateStructural Design
What is structural redundancy and why does it matter?
redundancyload pathprogressive collapse
IntermediateWater & Environmental
What does Darcy's law describe?
Darcy's lawseepagegroundwaterpermeability
BeginnerTransportation
Compare flexible and rigid pavements.
flexible pavementrigid pavementasphaltconcrete
BeginnerTransportation
What is the purpose of surveying, and what's the difference between leveling and traversing?
surveyinglevelingtraversinglayout
IntermediateStructural Design
What is prestressed concrete, and how do pre-tensioning and post-tensioning differ?
prestressed concretepre-tensioningpost-tensioningRCC
BeginnerStructural Design
What is the moment of inertia of a section and why does it matter?
moment of inertiasection modulusbendingstiffness
BeginnerStructural Design
What's the difference between dead load and live load?
dead loadlive loadload combinations
IntermediateStructural Design
What's the difference between a fixed beam and a simply supported beam?
fixed beamsimply supportedmomentsupport conditions
IntermediateWater & Environmental
What is the hydraulic gradient and why does it matter?
hydraulic gradientgroundwaterDarcyseepage
IntermediateWater & Environmental
What is a 100-year flood, and what does it mean for design?
100-year floodreturn periodhydrologyfloodplain
IntermediateTransportation
What is superelevation and why is it used on curves?
superelevationhorizontal curvecentripetalAASHTO
BeginnerStructural Design
What's the difference between a shear wall and a retaining wall?
shear wallretaining walllateral loadearth pressure
IntermediateStructural Design
What are the common types of retaining walls?
retaining wallgravitycantilevercounterfortanchored
IntermediateStructural Design
What is the section modulus and how does it relate to bending?
section modulusbending stressmoment of inertia
BeginnerWater & Environmental
What are weep holes in a retaining wall and why are they needed?
weep holesdrainagehydrostatic pressureretaining wall
AdvancedStructural Design
What's the difference between active and passive earth pressure?
active pressurepassive pressureearth pressureretaining wall