Construction Materials and Building Technology MCQs (Part-13)
What is the primary purpose of thermal insulation in buildings?
A To reduce noise
B To increase weight
C To maintain indoor temperature
D To enhance aesthetics
Thermal insulation helps regulate indoor temperatures by reducing heat transfer. It keeps buildings warm in winter and cool in summer, improving energy efficiency and comfort while reducing heating and cooling costs.
Which material is commonly used for thermal insulation?
A Fiberglass
B Concrete
C Pumice
D Steel
Fiberglass is commonly used for thermal insulation due to its low thermal conductivity. It helps reduce heat transfer, providing energy efficiency in buildings by preventing heat loss and minimizing cooling costs.
What is the main advantage of using high strength concrete?
A Faster setting time
B Greater load bearing capacity
C Lower cost
D Increased workability
High strength concrete is used for structures requiring higher load bearing capacity, such as skyscrapers and bridges. It provides enhanced durability, better resistance to cracking, and can withstand greater stress than regular concrete.
Which of the following is a standard test for concrete’s compressive strength?
A Flexural test
B Slump test
C Rebound hammer test
D Compression test
The compression test is used to measure the compressive strength of concrete. It determines how much load concrete can withstand before failing, which is crucial for ensuring structural safety and performance.
What does the term “material economics” refer to in construction?
A The efficient use of materials
B The cost of materials only
C The environmental impact of materials
D The durability of materials
Material economics refers to the optimal use of materials to reduce waste and cost while maintaining quality and performance. It aims to balance cost effectiveness, sustainability, and material efficiency in construction projects.
What is the primary function of reinforcement in concrete?
A To improve aesthetics
B To provide tensile strength
C To add weight
D To prevent water penetration
Reinforcement, typically made from steel bars (rebar), is used in concrete to provide tensile strength. Concrete is weak under tension, so reinforcement helps prevent cracking and ensures stability under stress.
Which of the following materials is known for its high durability in construction?
A Concrete
B Plywood
C Steel
D Wood
Steel is known for its high durability and strength in construction. It is resistant to corrosion when treated properly, making it ideal for structural applications like beams, columns, and reinforcements in buildings.
What is the purpose of testing standards in construction?
A To reduce construction time
B To lower project costs
C To improve aesthetics
D To ensure materials meet specific performance requirements
Testing standards ensure that construction materials meet specific criteria for strength, durability, and safety. This helps ensure the quality of construction and prevents structural failures by adhering to established benchmarks.
What is the main reason for using prefabricated materials in construction?
A To reduce construction time
B To improve material strength
C To increase construction time
D To reduce costs
Prefabricated materials are manufactured off site and assembled on site, reducing the overall construction time. This method is efficient, cost effective, and reduces the risk of delays due to weather or labor shortages.
Which property of concrete is primarily tested by a slump test?
A Tensile strength
B Workability
C Durability
D Compressive strength
The slump test measures the workability of fresh concrete. It indicates the consistency or flowability of the mixture, which helps determine if the concrete is suitable for placement and compaction.
What is the primary material used in creating bricks?
A Cement
B Sand
C Clay
D Lime
Clay is the primary material used in brick production. It is mixed with water, molded into shape, and fired in a kiln to create durable, strong bricks used in masonry construction.
What is the role of quality control in construction?
A To improve color consistency
B To reduce labor costs
C To increase the size of buildings
D To ensure materials and work meet specified standards
Quality control ensures that construction materials, techniques, and finished work meet the required standards for safety, durability, and performance. It helps avoid defects, delays, and structural failures.
Which of the following materials is known for its fire resistant properties?
A Concrete
B Foam
C Plastic
D Wood
Concrete is known for its fire resistant properties due to its non combustible nature. It can withstand high temperatures, making it ideal for fireproofing structural elements like walls, floors, and beams.
What is the main advantage of using recycled materials in construction?
A Enhanced aesthetic appeal
B Reduced environmental impact
C Increased durability
D Higher cost
Using recycled materials in construction reduces waste and the demand for virgin materials. It helps conserve resources, reduces landfill usage, and lowers the carbon footprint, promoting more sustainable construction practices.
Which of the following materials is commonly used for temporary scaffolding?
A Wood
B Concrete
C Steel
D Glass
Steel is commonly used for temporary scaffolding due to its strength, durability, and ability to support heavy loads. It provides a stable platform for workers to perform tasks at elevated heights safely.