Worksheetsintroduction to RCC
Total questions: 15
Worksheet time: 8mins
Which of the following is the binding material in concrete?
Sand
Cement
Coarse aggregate
Water
The fine aggregate size in concrete usually ranges from:
0.075 mm to 2.36 mm
0.075 mm to 4.75 mm
2 mm to 6 mm
0.5 mm to 5 mm
Reinforced Concrete (R.C.C.) combines which two main materials?
Steel and Wood
Concrete and Steel
Cement and Glass
Aggregate and Aluminum
The main reason for using steel as reinforcement in concrete is:
To increase compressive strength
To resist tensile stresses
To reduce cost
To improve color
The coefficient of thermal expansion of concrete is approximately:
1.0 × 10⁻⁵ /°C
1.1 × 10⁻⁵ /°C
1.5 × 10⁻⁵ /°C
2.0 × 10⁻⁵ /°C
Which IS code is used for the design of reinforced concrete structures?
IS 456:2000
IS 875:1987
IS 1893:2002
IS 383:1970
Dead loads are:
Temporary loads
Loads due to occupancy
Permanent loads due to self-weight
Loads due to wind
M20 grade concrete indicates:
20 MPa tensile strength
20% cement content
20 MPa compressive strength
20 kN/m³ density
The equation for modulus of elasticity of concrete (as per IS 456:2000) is:
Ec = 5000 × sqrt fck
Ec = 5000/fck
Ec = 2000 × fck
The Poisson's ratio of concrete is generally taken as:
0.1
0.15
0.2
0.3
The deformation of concrete under sustained load is called:
Shrinkage
Elastic deformation
Creep
Fatigue
The property of concrete determining its ease of mixing and placing is:
Strength
Workability
Durability
Ductility
The unit weight of R.C.C. is approximately:
20 kN/m³
23 kN/m³
24 kN/m³
25 kN/m³
The modulus of elasticity of steel is:
2.0 × 10⁵ N/mm²
2.1 × 10⁵ N/mm²
1.5 × 10⁵ N/mm²
3.0 × 10⁵ N/mm²
Which of the following is a disadvantage of R.C.C.?
Low maintenance cost
High fire resistance
Requires formwork and skilled labour
Can be given any shape
