Lintels & Arches Test

Explanation
The given statement suggests that the arch is laid with its bed joints radiating to the center, which means that the bricks are arranged in a straight pattern. This indicates that the arch is built using straight bricks, rather than gauged bricks or relieving arches.

Explanation
A steel lintel is commonly used in situations where there is a large opening that needs to support a heavy wall load, but the depth of the lintel needs to be restricted. Steel is a strong and durable material that can bear heavy loads without requiring a large depth, making it an ideal choice for such scenarios. Brick and wooden lintels may not have the same load-bearing capacity or the ability to be restricted in depth, which is why steel is often preferred in these cases.

Explanation
Camber arch is also known as "Flat" because it refers to an arch shape that is level or straight, without any curve or rise. This term is used to describe an architectural design where the arch is not curved but instead has a flat or horizontal profile. The term "Flat" is commonly used to differentiate this type of arch from other arch designs that have a curved or arched shape.

Explanation
A lintel is a horizontal structure that is placed over an opening to support the weight of the superimposed masonry. This means that the masonry is placed on top of the lintel, making the lintel bear the load of the masonry. Therefore, the correct answer is "Superimposed".

Explanation
In order to construct ______ brick arches, the bricks are cut to a wedge shape. This means that the bricks are shaped with one end wider than the other, allowing them to fit together tightly and form a strong arch structure. The term "axed" refers to the process of cutting the bricks in this wedge shape.

Explanation
The correct answer is "Span." Span refers to the clean horizontal distance between the supports. It is the measurement of the space between two points of support, such as the distance between the two ends of a bridge or the width of a roof between its supporting walls. The span is an important factor in determining the structural integrity and load-bearing capacity of a structure.

Explanation
The lintel is projected by a minimum of 150mm on either side of the opening into the wall so as to transfer the imposed loads on to the jambs of the openings. This projection ensures that the weight and pressure from the loads are evenly distributed and supported by the jambs, preventing any structural damage or failure. A smaller projection could result in inadequate support, while a larger projection may not be necessary and could lead to unnecessary material and construction costs.

Explanation
A relieving arch is a construction above a wooden lintel that helps to distribute the load and reduce the intensity of the load on it. It is typically used in buildings with heavy loads or where there is a need to support a large span. The relieving arch helps to transfer the weight of the structure above it to the surrounding walls or supports, preventing excessive stress on the wooden lintel and ensuring its stability and longevity.

Explanation
The keystone is the highest central wedge-shaped block of an arch. It is placed at the top center of the arch, and its unique shape allows it to distribute the weight of the arch evenly, providing stability and support. Without the keystone, the arch would collapse.

Explanation
The correct answer is "a" because "a" is the only option that is a complete sentence and makes sense on its own. Options "b" and "c" are incomplete and do not provide any meaningful information. Therefore, "a" is the most appropriate answer.