Avinash Group Interview Questions and Answers

Workability of concrete refers to its ease of mixing, placing, and compacting.

• Workability is affected by factors such as water-cement ratio, aggregate size and shape, and admixtures.

• Concrete with good workability is easier to handle and results in a smoother finish.

• Workability can be measured using tests such as slump test, flow test, and compacting factor test.

• Low workability can lead to problems such as segregation a...read more

Internal painting process involves surface preparation, primer application, and topcoat application.

• Surface preparation involves cleaning, sanding, and filling any cracks or holes.

• Primer application helps to improve adhesion and durability of the paint.

• Topcoat application is done after the primer has dried and provides the final color and finish.

• The type of paint and application method used depends on the surface being...read more

The process of tiles laying involves preparation of surface, marking layout, applying adhesive, laying tiles and grouting.

• Surface preparation involves cleaning and leveling the surface.

• Layout is marked using chalk lines or laser levels.

• Adhesive is applied using a notched trowel.

• Tiles are laid starting from the center and working outwards.

• Grouting is done after the adhesive has dried.

• Different types of tiles require dif...read more

Internal plaster is the process of applying a layer of plaster on the interior walls and ceilings of a building.

• The surface to be plastered should be clean and free from dust and debris.

• A mixture of cement, sand, and water is prepared in the ratio of 1:4:5.

• The mixture is then applied to the surface using a trowel and leveled.

• The plaster is left to dry for a few days before it is painted or finished with a decorative co...read more

External plaster is a process of applying a layer of cement mortar on the external walls of a building.

• The surface to be plastered is cleaned and made free of dust and debris.

• A mixture of cement, sand, and water is prepared in the required ratio.

• The mixture is applied on the wall surface using a trowel.

• The plaster is then leveled and smoothened using a wooden float.

• The plaster is left to dry for a few days before paint...read more

Tests conducted on aggregates to determine their quality and suitability for use in construction.

• Gradation test to determine particle size distribution

• Abrasion test to determine resistance to wear and tear

• Impact test to determine toughness and resistance to impact

• Soundness test to determine resistance to weathering

• Specific gravity and water absorption test to determine density and porosity

The test of fine aggregate is conducted to determine its quality and suitability for use in construction.

• The test of fine aggregate includes tests for grading, particle shape, specific gravity, water absorption, and moisture content.

• Grading test determines the particle size distribution of the aggregate.

• Particle shape test assesses the shape and texture of the particles.

• Specific gravity test measures the density of the...read more