Construction Materials and Building Technology MCQs (Part-7)
What is the most common type of cement used in general construction?
A Sulphate Resistant Cement
B Ordinary Portland Cement (OPC)
C White Cement
D Rapid Hardening Cement
Ordinary Portland Cement (OPC) is the most commonly used cement in general construction due to its availability, cost effectiveness, and reliable strength. It is versatile and suitable for most concrete and masonry applications.
Which material is used to bind sand and stones in masonry?
A Clay
B Water
C Cement
D Lime
Cement binds sand and stones together in masonry, forming a solid structure. When mixed with water, it forms a paste that hardens over time, providing strength and durability to masonry walls and other constructions.
What type of aggregate is most commonly used in concrete?
A Crushed stone
B Gravel
C Sand
D Pumice
Crushed stone is the most common aggregate used in concrete production. It is durable, provides good interlocking properties, and is ideal for strength and workability in concrete mixes.
What is the main advantage of using prefabricated structures?
A More complex design
B Better durability
C Higher cost
D Faster construction time
Prefabricated structures are manufactured off site and then assembled at the construction site. This method reduces overall construction time, minimizes weather related delays, and ensures better quality control during fabrication.
Which of the following is a common roofing material?
A Bitumen
B Asphalt shingles
C Plywood
D Glass wool
Asphalt shingles are commonly used in roofing due to their cost effectiveness, durability, and ease of installation. They are widely used for residential buildings and offer good protection against weather elements.
What is the purpose of using admixtures in concrete?
A To reduce curing time
B To reduce water content
C To improve workability
D To increase strength
Admixtures are added to concrete to modify its properties. They can improve workability, extend setting time, reduce water content, and enhance the durability and strength of concrete, depending on the type of admixture used.
Which material is used for waterproofing in basements?
A Bitumen
B Concrete
C Cement
D Lime
Bitumen is widely used for waterproofing basements and other structures. Its water resistant properties make it ideal for preventing water penetration into building foundations, ensuring the integrity of underground spaces.
What is the primary function of reinforcement in concrete?
A To improve flexibility
B To add weight
C To enhance thermal conductivity
D To provide tensile strength
Concrete is weak in tension, so reinforcement, typically in the form of steel bars, is added to provide tensile strength. This prevents cracking and helps concrete withstand stress without failure.
What type of steel is commonly used in reinforced concrete?
A Carbon Steel
B Mild Steel
C High Tensile Steel
D Stainless Steel
Mild steel is the most common type used in reinforced concrete. It is preferred because of its ductility, which allows it to bend without breaking, and its good bond with concrete, enhancing the structure’s durability.
Which type of cement is ideal for use in large scale concrete pours?
A Sulphate Resistant Cement
B White Cement
C Rapid Hardening Cement
D Ordinary Portland Cement
Rapid Hardening Cement is ideal for large scale pours as it gains strength quickly, reducing the waiting time for construction activities. It is used when early strength development is critical in construction projects.
What is the primary use of lime in construction?
A Plastering and mortar
B Waterproofing
C Insulation
D Fireproofing
Lime is widely used in plastering and making mortar. It provides excellent workability, adhesive properties, and flexibility, making it ideal for bonding bricks and stone in masonry and finishing applications.
What is the main advantage of using green building materials?
A They require more labor
B They are less expensive
C They have better strength
D They help reduce environmental impact
Green building materials, such as recycled products and sustainably sourced materials, reduce the environmental impact of construction. They promote energy efficiency, waste reduction, and resource conservation, contributing to sustainable building practices.
Which of the following materials is commonly used for insulation in buildings?
A Wood
B Fiberglass
C Concrete
D Steel
Fiberglass is commonly used for insulation because it effectively reduces heat transfer and helps maintain indoor temperatures. It is lightweight, non combustible, and a cost effective option for thermal and acoustic insulation.
What is the primary function of formwork in concrete construction?
A To waterproof concrete
B To insulate concrete
C To support concrete during setting
D To reinforce concrete
Formwork serves as a temporary mold to shape and support fresh concrete until it hardens. It helps ensure that the concrete is placed in the correct shape and position for structural integrity.
Which type of concrete is best suited for high strength applications like bridges?
A High performance concrete
B Precast concrete
C Lightweight concrete
D Ordinary concrete
High performance concrete is designed to provide higher strength, durability, and resistance to harsh environmental conditions, making it ideal for high strength applications like bridges, skyscrapers, and highways.