Question 1

Thickness of the concrete bed in reinforced concrete footing is ________

Accepted Answer

The thickness of the concrete bed in reinforced concrete footing is typically 7 to 8 cm.

Question 2

Which type of footing used for supporting the individual columns?

Accepted Answer

Column footings are specifically designed to support individual columns, distributing the column loads to the ground below.

Question 3

Which type of footing is used for the steel columns?

Accepted Answer

Grillage footings are specifically designed for steel columns. They consist of layers of steel beams that are laid out in a grid form to spread the load over a large area, making them suitable for heavy structures and reducing the need for extensive excavation and concrete work.

Question 4

" Runners are used for the extremely loose and soft ground." is it true or false?

Accepted Answer

Runners are indeed used for extremely loose and soft ground, as they help distribute the weight of structures over a larger area, reducing the pressure on the ground and preventing sinking or instability.

Question 5

Which type of pile used for the extremely loose soil?

Accepted Answer

Friction piles are used in extremely loose soils where the pile transfers the load to the soil through friction along its length, rather than relying on a firm base.

Question 6

"Compaction pile used for the carrying the load of the structure." Is it true or false?

Accepted Answer

Compaction piles are primarily used to compact the soil and improve its bearing capacity rather than directly carrying the load of the structure. They densify the soil, which can indirectly support the load by creating a better foundation, but they do not carry the load themselves.

Question 7

Which type of pile used for protect front of structure against the impact from ship and other floating objects?

Accepted Answer

Fender piles are specifically designed to absorb the impact from ships and other floating objects, protecting the structure they are installed in front of.

Question 8

Box caissons are used when depth of water is _______

Accepted Answer

The answer of Box caissons are used when depth of...

Question 9

" In open caisson sand filling is used for the transferring the load from well cap to bottom plug." Is it true or false?

Accepted Answer

Sand filling is used in open caissons to transfer the load from the well cap to the bottom plug, providing a stable base for the caisson.

Question 10

In pneumatic caissons, which method used for remove the water from the caissons?

Accepted Answer

Compressed air is used in pneumatic caissons to keep water out by maintaining a higher air pressure inside the caisson than the water pressure outside.

Question 11

Which type of cofferdam is used for the depth of water in rang of 18 to 21m?

Accepted Answer

Cellular cofferdams are suitable for deep water situations, typically in the range of 18 to 21 meters, because they are made of interconnected steel sheet piles that form a series of cells filled with soil or sand, providing stability and resistance against water pressure.

Question 12

What is minimum depth of the foundation for the black cotton soil?

Accepted Answer

The minimum depth of the foundation for the black cotton soil is 1.5m. This is because black cotton soil is a highly expansive soil, which means that it swells when it comes into contact with water. This can cause the foundation of a building to crack and settle, which can lead to serious structural damage. By placing the foundation at a depth of 1.5m, the soil is less likely to come into contact with water and cause the foundation to swell.

Question 13

Which ground treatment is adopted before the foundation on the loose soil?

Accepted Answer

All of the above methods (Pre-loading, Cement injection grouting, Deep vibration) are techniques used for ground treatment before laying foundations on loose soil to improve its bearing capacity and stability.

Question 14

Upper most course of plinth masonry is known as________

Accepted Answer

The uppermost course of plinth masonry is specifically referred to as the Plinth Course. This is the course that lies directly above the plinth beam and is crucial for distributing the load of the wall above it.

Question 15

What is nominal size of the modular brick?

Accepted Answer

The nominal size of a modular brick, which includes the mortar joint, is 20 x 10 x 10 cm.

Question 16

Which one of these is strongest bond for brick masonry?

Accepted Answer

English bond is considered the strongest bond for brick masonry because it alternates between a course of stretchers and a course of headers, providing maximum stability and strength.

Question 17

Dry rubble masonry is used for the construction of the______

Accepted Answer

Dry rubble masonry is commonly used in the construction of retaining walls, pitching earthen dams, and canal slopes due to its ability to allow water drainage and its cost-effectiveness.

Question 18

Which metal is used for the construction of plug joints in stone masonry?

Accepted Answer

Lead is used for the construction of plug joints in stone masonry because it is malleable and can easily be shaped to fill the joints, ensuring a tight and durable fit.

Question 19

"Form vibrators are used for the construction of the pre-cast concrete." Is it true or false?

Accepted Answer

Form vibrators are indeed used in the construction of pre-cast concrete. They are attached to the exterior of the formwork and help in consolidating the concrete, ensuring that it fills the formwork completely and wraps around the reinforcement without leaving any voids or air pockets.

Question 20

"Lower surface of the brick or stone is known as bed." is it true or false?

Accepted Answer

The statement is true. The lower surface of a brick or stone, which is laid in a horizontal plane in masonry construction, is known as the bed. This is the surface upon which the brick or stone rests.

Quiz 1: Foundations, Masonry, and Concrete Construction