What is the primary component of concrete?

• Sand

• Cement

• Gravel

• Water

Which test is commonly used to measure the compressive strength of concrete?

• Slump Test

• Tensile Test

• Cube Test

• Flexural Test

What is the purpose of the slump test in concrete?

• To measure the compressive strength

• To determine the workability

• To assess the tensile strength

• To evaluate the durability

Which type of concrete is known for its high strength and durability?

• Lightweight Concrete

• High-Performance Concrete

• Air-Entrained Concrete

• Pervious Concrete

What is the typical water-cement ratio for a standard concrete mix?

• 0.2

• 0.4

• 0.6

• 0.8

What is the process called when water reacts with cement in concrete?

• Evaporation

• Hydration

• Condensation

• Sublimation

Which of the following is NOT a type of concrete mix?

• Nominal Mix

• Design Mix

• Prescribed Mix

• Random Mix

What is the main purpose of using screed in construction?

• To provide structural support

• To level the surface

• To increase thermal insulation

• To enhance aesthetic appeal

Which component in concrete is responsible for its binding properties?

• Sand

• Cement

• Aggregate

• Water

What is the typical density of concrete in kg/m³?

• 1000 kg/m³

• 1500 kg/m³

• 2400 kg/m³

• 3000 kg/m³