Hey friends! Welcome to our cool blog post on Civil Engineering MCQs, focusing on the Design of Masonry Structures. It’s a fantastic way to see how buildings and walls stand up and stay pretty for years!
Designing Masonry Structures involves planning and creating buildings using bricks, stones, and concrete. It’s like a puzzle: figuring out how to put all these pieces together so they’re strong, safe, and look great.
Dive into our quiz to learn more about how these structures are designed and to test your knowledge. Whether you’re studying civil engineering or just love learning how things are built, this is for you. Let’s get into it and see what makes masonry design so amazing. Ready? Let’s build some knowledge!
1. What is the primary material used in masonry construction?
Answer:
Explanation:
Brick is the most commonly used material in masonry construction, known for its durability and strength.
2. The term 'frog' in brick masonry refers to:
Answer:
Explanation:
The 'frog' is an indentation on the brick's surface to reduce weight and improve the mortar-to-brick bond.
3. Which mortar type is typically used for load-bearing masonry walls?
Answer:
Explanation:
Cement mortar, due to its high strength and bonding capabilities, is preferred for load-bearing masonry walls.
4. In masonry, the term 'batt' refers to:
Answer:
Explanation:
A 'batt' is a piece of brick cut smaller than the full size, typically used to fill gaps in masonry walls.
5. What is the main purpose of a 'damp proof course' (DPC) in masonry construction?
Answer:
Explanation:
A damp proof course is a barrier, usually made of waterproof material, placed in walls to prevent ground moisture from rising up the structure.
6. Which bond in brick masonry is characterized by laying all bricks as stretchers?
Answer:
Explanation:
In a stretcher bond, all the bricks are laid as stretchers, with the long face of the brick visible on the wall's face.
7. The crushing strength of a good quality brick should not be less than:
Answer:
Explanation:
A good quality brick should have a minimum crushing strength of 5.5 N/mm².
8. In masonry, 'spalling' refers to:
Answer:
Explanation:
Spalling in masonry is the breaking off of pieces from the surface of stone or brick, often due to freeze-thaw cycles, moisture, or structural stress.
9. The most common cause of cracks in masonry walls is:
Answer:
Explanation:
Cracks in masonry walls are often caused by thermal expansion and contraction of the materials due to temperature changes.
10. Ashlar masonry is characterized by:
Answer:
Explanation:
Ashlar masonry involves the use of finely dressed stones, laid in regular courses and patterns.
11. The primary function of a 'lintel' in masonry construction is to:
Answer:
Explanation:
A lintel is a horizontal structural member placed over an opening in a wall to support the load from the structure above.
12. What is the purpose of 'weep holes' in retaining walls?
Answer:
Explanation:
Weep holes in retaining walls are provided for drainage, allowing water to escape and reducing hydrostatic pressure on the wall.
13. In brick masonry, a 'queen closer' is used to:
Answer:
Explanation:
A queen closer is a brick cut lengthwise and used to fill small gaps in masonry courses.
14. The main advantage of cavity walls in masonry construction is to:
Answer:
Explanation:
Cavity walls, consisting of two wall layers separated by a hollow space, provide improved thermal insulation and moisture protection.
15. The ratio of height to minimum thickness for a stable masonry wall is known as:
Answer:
Explanation:
The slenderness ratio in masonry walls is a critical factor in determining stability and resistance to buckling.
16. In masonry structures, 'corbeling' is used to:
Answer:
Explanation:
Corbeling in masonry is the technique of projecting successive courses of bricks or stones from the face of the wall to form a ledge or extension.
17. Which type of stone masonry uses irregularly shaped stones without mortar?
Answer:
Explanation:
Dry masonry involves laying stones without mortar, relying on their natural shape for stability.
18. The process of soaking bricks in water before use is important to:
Answer:
Explanation:
Soaking bricks before use ensures that they do not absorb water from the mortar, which can weaken the bond.
19. A 'pier' in masonry construction is primarily used for:
Answer:
Explanation:
A pier is a vertical masonry support, often used to carry the load of arches, beams, and other structural elements.
20. The main difference between 'coursed' and 'uncoursed' rubble masonry is:
Answer:
Explanation:
In coursed rubble masonry, stones are laid in regular horizontal courses, while in uncoursed rubble masonry, stones are laid without any regular courses.
21. In masonry, 'pointing' refers to:
Answer:
Explanation:
Pointing in masonry is the process of finishing the mortar joints with a fine mortar to improve appearance and protect the joints from weathering.
22. The primary purpose of a 'butterfly' or 'header' tie in cavity wall construction is to:
Answer:
Explanation:
Butterfly or header ties are used in cavity walls to connect the inner and outer leaves, ensuring stability and distributing loads.
23. The 'compressive strength' of masonry is most significantly affected by:
Answer:
Explanation:
The compressive strength of masonry is significantly influenced by the strength and bonding capabilities of the mortar.
24. A 'bond beam' in masonry construction is used to:
Answer:
Explanation:
A bond beam is a horizontal structural element, often reinforced with steel, used to distribute loads and provide additional strength to the masonry wall.