What causes cracks in concrete?
A Shrinkage
B High temperature
C Overloading
D Water-cement ratio
What is the purpose of prestressed concrete?
A Resist tension
B Increase durability
C Prevent deflection
D Improve strength
What is torsion reinforcement used for?
A Axial load resistance
B Shear resistance
C Twisting forces
D Bending resistance
What is the function of a deep beam?
A Increase load capacity
B Transfer shear forces
C Improve bending resistance
D Resist torsion
What is the advantage of flat slabs?
A Decrease weight
B Reduce construction time
C Increase bending capacity
D Improve durability
What does “creep” affect in concrete?
A Deflection
B Cracking
C Strength
D Durability
What is the main role of reinforcement in concrete?
A Transfer load
B Increase durability
C Resist tension
D Improve aesthetics
What does “ductile detailing” ensure in seismic design?
A Strength under load
B Increase stiffness
C Reduce weight
D Energy dissipation
What is a primary feature of a one-way slab?
A Resists torsional forces
B Transfers load in one direction
C Supported on four sides
D Used for high-rise buildings
What is the main function of a water tank in reinforced concrete?
A Store water
B Increase stability
C Reduce weight
D Improve aesthetics
What is the primary purpose of bond between concrete and steel reinforcement?
A Improve strength
B Improve durability
C Prevent corrosion
D Transfer load
Which foundation type is best for deep soil layers?
A Raft foundation
B Pile foundation
C Isolated foundation
D Strip foundation
What is the main cause of cracking in concrete slabs?
A High temperatures
B Incorrect curing
C Shrinkage
D Excessive loading
What type of concrete is used for heavy-load applications?
A M40
B M15
C M20
D M25
What is the purpose of the working stress method in design?
A Increase deflection
B Prevent cracking
C Limit service stresses
D Limit ultimate strength