10+ Techma IT Services Interview Questions and Answers

The amount of steel needed for a 1000sqft slab depends on the thickness of the slab and the spacing of the steel bars.

• The thickness of the slab will determine the amount of steel needed.

• The spacing of the steel bars will also affect the amount of steel needed.

• A typical 4-inch thick slab may require around 100-120 steel bars per 1000sqft.

• The size and type of steel bars used will also impact the amount needed.

Bearing capacity of soil can be increased by improving soil compaction, adding reinforcement, or using ground improvement techniques.

• Improving soil compaction by using heavy machinery or adding water to the soil

• Adding reinforcement such as geotextiles or geogrids to increase soil strength

• Using ground improvement techniques such as soil stabilization or deep soil mixing

• Replacing weak soil with stronger soil or using piles to transfer the load to deeper, stronger soil

• Reducing t...read more

Development length is provided to ensure proper bonding between reinforcement and concrete.

• Development length is the length of reinforcement bar required to transfer the stress from steel to concrete.

• It is provided to ensure that the reinforcement bar is properly bonded with the concrete.

• The development length depends on the diameter of the bar, the grade of the steel, and the strength of the concrete.

• If the development length is not provided properly, it can lead to failure ...read more

Soil stabilization is the process of improving the engineering properties of soil to increase its strength and durability.

• It involves adding materials to the soil to improve its properties

• Common materials used for soil stabilization include cement, lime, and fly ash

• Soil stabilization is often used in construction projects to improve the stability of the ground

• It can also be used to prevent soil erosion and improve the load-bearing capacity of the soil

• Soil stabilization techni...read more

Putty work involves filling gaps and cracks in walls to create a smooth surface for painting or wallpapering.

• Clean the surface to be puttied

• Apply putty to the gaps and cracks using a putty knife

• Smooth out the putty with a wet sponge or sandpaper

• Allow the putty to dry completely before painting or wallpapering

• Repeat the process if necessary for a smooth finish

Development length is the minimum length of reinforcement required to transfer the stress from steel to concrete.

• It is the length of the bar required to be embedded in the concrete to transfer the stress.

• It depends on the diameter of the bar, type of concrete, and the bond strength between steel and concrete.

• It is calculated using the formula Ld = (φ × fy × As) / (4 × τbd × σst)

• For example, for a 20mm diameter bar in M25 grade concrete, the development length is 44cm.

• It is im...read more

Puff panel is a type of insulated panel made of two metal sheets with a foam core in between.

• Puff panels are commonly used in construction for walls, roofs, and ceilings.

• They provide excellent insulation and are lightweight, making them easy to install.

• Puff panels are also fire-resistant and have good sound insulation properties.

• Examples of applications include cold storages, clean rooms, and industrial buildings.

Modular bricks come in various dimensions depending on the manufacturer and intended use.

• Modular bricks are typically 3 5/8 inches tall by 2 1/4 inches wide by 7 5/8 inches long.

• Other common sizes include 2 1/4 x 3 5/8 x 7 5/8 inches and 2 1/4 x 3 5/8 x 11 5/8 inches.

• Some manufacturers may offer custom sizes or shapes for specific projects.

• The dimensions of modular bricks are important for determining the amount needed for a project and for ensuring proper installation.

BOQ stands for Bill of Quantities, which is a document that lists all the materials, labor, and equipment needed for a construction project.

• BOQ is a detailed document that helps in estimating the cost of a construction project.

• It includes a list of all the materials, equipment, and labor required for the project.

• BOQ is prepared by a quantity surveyor or an estimator.

• It helps in comparing the actual cost of the project with the estimated cost.

• BOQ is an important document for t...read more