10+ Interview Questions and Answers

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

• It is the length of steel bar that is embedded in concrete to transfer the stress from steel to concrete

• It is calculated based on the diameter of the steel bar, the strength of the concrete, and the bond strength between steel and concrete

• It is important to ensure that the development length is sufficient to prevent failure of the structure

• Example: For a 20mm diamete...read more

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

• Workability is an important property of concrete as it affects the strength, durability, and appearance of the final product.

• Factors affecting workability include water content, aggregate size and shape, cement content, and admixtures.

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

• Concrete with good workability can be easily placed and compacted wit...read more

Formula for calculating weight of per metre of steel bar

• Weight of per metre of steel bar = (diameter of steel)²/162, kg/m

• The formula is used to calculate the weight of steel bars used in construction

• The weight of steel bars varies depending on the diameter of the bar

• For example, a 10mm diameter steel bar would weigh approximately 0.617 kg/m

Competition of sub base refers to other materials that can be used as a base layer for construction.

• Common competition includes crushed stone, gravel, and asphalt.

• Factors such as cost, availability, and durability should be considered when choosing a sub base material.

• The chosen sub base material should provide a stable and level foundation for the construction project.

• Different types of construction projects may require different sub base materials.

• Proper compaction of the s...read more

GSB bad competition refers to the poor quality of construction work done using GSB material.

• GSB (Granular Sub Base) is a material used in road construction.

• If the GSB material used is of poor quality, it can lead to a weak foundation and road damage.

• This can result in increased maintenance costs and safety hazards for drivers.

• Examples of GSB bad competition include using low-quality materials or not compacting the material properly.

• Proper testing and quality control measures ...read more

The question is incomplete. Ratio of cement to what?

• The ratio of cement can be in relation to water, sand, or aggregate.

• The ratio of cement varies depending on the type of concrete being used.

• A common ratio for general purpose concrete is 1:2:3 (cement:sand:aggregate).

The ratio of M20 refers to the mix proportion of cement, sand and aggregates used in making concrete of grade M20.

• M20 is a mix of 1:1.5:3 of cement, sand and aggregates respectively.

• The compressive strength of M20 concrete is 20 N/mm² after 28 days of curing.

• M20 is commonly used for constructing residential buildings, bridges, and pavements.

A serving is a measured amount of food or drink that is typically consumed at one time.

• A serving size is determined by the nutrition label on food packaging.

• The recommended serving size for different foods varies based on their nutritional content.

• For example, a serving of vegetables is typically 1 cup, while a serving of meat is 3 ounces.

• It is important to pay attention to serving sizes to ensure proper nutrition and avoid overeating.

Pipeline work for DPR involves the planning, design, and construction of pipelines for the purpose of transporting oil, gas, or other fluids.

• Pipeline work for DPR includes activities such as route selection, surveying, and environmental impact assessment.

• Designing pipelines involves determining the pipe diameter, material, and thickness based on factors like fluid type, pressure, and temperature.

• Construction of pipelines involves excavation, welding, coating, and installation...read more