Construction Materials and Building Technology MCQs (Part-14)
What is the most commonly used type of cement in construction?
A White Cement
B Rapid Hardening Cement
C Sulphate Resistant Cement
D Ordinary Portland Cement (OPC)
OPC is the most commonly used cement in general construction. It is versatile, widely available, and ideal for most applications like foundations, floors, and walls due to its cost effectiveness and strength.
Which of the following materials is known for its high thermal insulation properties?
A Fiberglass
B Steel
C Wood
D Concrete
Fiberglass is a common material used for thermal insulation. It traps air within its fibers, which reduces heat transfer, making it an effective insulator in walls, attics, and other building elements.
What is the primary role of reinforcement in concrete?
A To increase workability
B To provide tensile strength
C To add color
D To reduce weight
Reinforcement, typically in the form of steel bars (rebar), is added to concrete to provide tensile strength. Concrete is strong in compression but weak in tension, so reinforcement prevents cracking.
Which material is commonly used for waterproofing foundations?
A Steel
B Cement
C Bitumen
D Pumice
Bitumen is commonly used for waterproofing foundations. Its sticky, waterproof properties make it ideal for sealing surfaces and preventing water ingress in basements and underground structures.
What type of aggregate is most commonly used in concrete?
A Gravel
B Clay
C Sand
D Pumice
Gravel is the most commonly used aggregate in concrete. It provides bulk and strength to the mix, reducing the need for excess cement and improving durability in concrete applications.
What is the purpose of using admixtures in concrete?
A To reduce cost
B To improve workability and durability
C To enhance strength
D To improve aesthetic appearance
Admixtures are added to modify concrete properties such as workability, setting time, and durability. They help achieve desired results in concrete performance without compromising structural integrity.
Which material is widely used for making bricks?
A Lime
B Cement
C Steel
D Clay
Clay is the primary material used for making bricks. It is shaped into bricks, then fired in kilns to harden, providing a durable, long lasting building material for walls and facades.
What is the role of formwork in concrete construction?
A To reinforce concrete
B To cure concrete
C To shape and support concrete
D To mix concrete
Formwork is used to mold and support fresh concrete until it hardens. It ensures the concrete retains its shape and dimensions while curing, allowing for the creation of beams, columns, and slabs.
Which of the following is a common green building material?
A Concrete
B Bamboo
C PVC
D Asbestos
Bamboo is considered a sustainable, green building material due to its fast growth, strength, and renewable nature. It is used in construction for scaffolding, flooring, and even as reinforcement in concrete.
What is the purpose of using composite materials in construction?
A To enhance durability and performance
B To lower cost
C To reduce material strength
D To improve aesthetics
Composite materials combine two or more materials to achieve superior performance characteristics. They are used in construction for enhanced durability, strength, and resistance to environmental factors, making them ideal for bridges and high rise buildings.
What is the purpose of curing concrete?
A To remove moisture
B To help concrete set faster
C To maintain moisture and temperature for strength development
D To improve workability
Curing ensures that concrete retains the moisture necessary for hydration. This process helps concrete develop the desired strength, durability, and resistance to cracking, especially in the early stages.
What is the primary purpose of using mortar in masonry construction?
A To insulate buildings
B To add strength
C To bond materials together
D To waterproof surfaces
Mortar is used to bind bricks, stones, or other masonry materials together. It provides stability, strength, and helps hold the construction materials in place while also filling gaps for a smoother finish.
What is the purpose of using fireproof materials in construction?
A To reduce construction costs
B To prevent fire damage
C To enhance aesthetics
D To reduce structural weight
Fireproof materials are used in construction to protect buildings from fire. They prevent the spread of flames, reduce heat transfer, and protect structural elements like beams and columns from fire damage.
Which of the following materials is typically used for roof insulation?
A Fiberglass
B Concrete
C Asphalt
D Glass
Fiberglass is commonly used for roof insulation due to its high thermal resistance. It helps regulate temperatures inside buildings, reducing the need for heating and cooling, thus improving energy efficiency.
What is the purpose of testing standards in construction?
A To increase design complexity
B To delay construction
C To ensure safety and quality
D To reduce material usage
Testing standards in construction ensure that materials, processes, and finished products meet the required quality and safety criteria. This prevents defects, ensures structural integrity, and protects the safety of building occupants.