10+ Siddartha Institute of Science and Technology Interview Questions and Answers

Rebound Hammer Test is a non-destructive test to determine the compressive strength of concrete.

• Calibrate the rebound hammer before use

• Clean the surface of the concrete to be tested

• Hold the rebound hammer perpendicular to the surface and press the plunger to release the hammer

• Record the rebound value and repeat the test at least twice on each location

• Calculate the average rebound value and use a conversion chart to determine the compressive strength

• Ensure safety measures are ...read more

If cubes do not attain strength as per IS code, next procedures include identifying the cause, taking corrective measures, and retesting.

• Identify the cause of low strength, such as improper mixing, curing, or testing procedures.

• Take corrective measures, such as adjusting the mix proportions, improving curing conditions, or retesting with proper procedures.

• Retest the cubes to ensure they meet the required strength as per IS code.

• Document the entire process for future reference...read more

The code used for mix design is ASTM C192. The yield of concrete is the volume of concrete produced from a mixture of cement, water, and aggregates. There are different types of cement such as Portland cement, slag cement, and fly ash cement. Various tests for cement include compressive strength test, fineness test, and soundness test. Admixtures are added to concrete to improve its properties. Types of admixtures include water-reducing admixtures, air-entraining admixtures, ...read more

The minimum slump required for pumping concrete to the 2nd floor is typically around 4 inches.

• Minimum slump of around 4 inches is usually required for pumping concrete to higher floors

• Higher slumps may be needed for longer pumping distances or to ensure proper flow and consolidation

• Consult with concrete supplier or pumping contractor for specific requirements

Grading of aggregates is used for aggregate testing and specifications.

• Grading of aggregates is a method used to determine the particle size distribution of aggregates.

• It involves separating aggregates into different size fractions using sieves.

• The results of the grading test help in determining the quality and suitability of aggregates for various construction applications.

Heat of hydration can be measured using calorimetry.

• Calorimetry involves measuring the heat released or absorbed during a chemical reaction.

• The heat of hydration can be calculated by subtracting the heat released by the reaction of the anhydrous compound with water from the heat released by the reaction of the hydrated compound with water.

• For example, the heat of hydration of calcium chloride can be measured by reacting anhydrous calcium chloride with water and measuring the ...read more

Reinforcement in civil engineering refers to the process of adding steel bars or mesh to concrete structures to increase their strength and durability.

• Reinforcement helps to resist tensile forces in concrete structures.

• Common types of reinforcement include rebar (steel bars) and wire mesh.

• Reinforcement is placed strategically within the concrete forms before pouring the concrete.

• Properly placed reinforcement helps prevent cracking and structural failure in buildings and bridg...read more

I would remain calm, listen to their concerns, empathize with their situation, and work towards finding a solution together.

• Remain calm and composed

• Listen actively to understand their concerns

• Empathize with their situation

• Work towards finding a mutually beneficial solution

• Offer alternatives or solutions to address their issues

• Maintain professionalism and respect throughout the interaction

Mineral admixtures are used in concrete to improve its properties.

• Mineral admixtures are added to concrete to enhance its strength, durability, and workability.

• They can also reduce the amount of cement needed in concrete mixtures.

• Examples of mineral admixtures include fly ash, silica fume, and ground granulated blast furnace slag.

• Fly ash is a byproduct of coal combustion and is commonly used as a mineral admixture in concrete.

• Silica fume is a byproduct of the production of si...read more

My research topic in M.tech was on the development of machine learning algorithms for predictive maintenance in industrial systems.

• Developed machine learning models to predict equipment failures in industrial systems

• Used data from sensors and other sources to train the models

• Implemented the models in real-world scenarios to demonstrate their effectiveness

• Explored different algorithms and techniques to improve the accuracy of the predictions

Mix design for M25 concrete involves selecting suitable ingredients and proportions to achieve desired strength and durability.

• Determine the target strength of concrete (M25 in this case)

• Select suitable materials like cement, aggregates, and water

• Calculate the proportions of each material based on mix design principles

• Perform trial mixes and tests to ensure desired properties are achieved

Marketing is the process of creating awareness and interest in a product or service, while sales is the process of converting that interest into a purchase.

• Marketing focuses on creating demand for a product or service, while sales focuses on fulfilling that demand.

• Marketing involves activities such as advertising, public relations, and market research, while sales involves activities such as prospecting, qualifying leads, and closing deals.

• Marketing is a long-term strategy, w...read more

Design mix of concrete refers to the process of selecting suitable ingredients and determining their proportions to produce concrete with desired properties.

• Design mix involves selecting the type and quality of materials such as cement, aggregates, and water.

• Proportions of each material are determined based on the desired strength, workability, and durability of the concrete.

• Factors like environmental conditions, construction requirements, and cost also influence the design m...read more

RMC Plant stands for Ready Mix Concrete Plant, which is a centralized plant where concrete is mixed and delivered to construction sites.

• RMC Plant is a specialized plant where concrete is produced in large quantities and delivered to construction sites.

• It helps in ensuring consistent quality of concrete as it is produced in controlled conditions.

• RMC Plants use computerized control systems to ensure accurate mixing of ingredients.

• They are preferred for large construction projec...read more

Concrete is a composite material made of cement, water, aggregates, and sometimes additives, used in construction for its strength and durability.

• Concrete is made by mixing cement, water, and aggregates like sand and gravel.

• It hardens over time through a chemical process called hydration.

• Concrete is used in construction for building foundations, roads, bridges, and more.

• Different types of concrete can be used based on the specific requirements of a project.

• Additives like fibe...read more

PCC stands for Plain Cement Concrete and is made of cement, sand, and aggregate. RCC stands for Reinforced Cement Concrete and has steel reinforcement added to increase strength.

• PCC is used for non-structural works like levelling, bedding for footing, etc.

• RCC is used for structural works like beams, columns, slabs, etc.

• RCC has higher strength and durability compared to PCC.

• PCC does not have any reinforcement, while RCC has steel bars or mesh embedded in it.

• Example: PCC is use...read more

RMC stands for Royal Military College.

• RMC is a military college in Canada that trains officers for the Canadian Armed Forces.

• It was established in 1876 and is located in Kingston, Ontario.

• RMC offers undergraduate and graduate programs in various fields including engineering, humanities, and social sciences.

• Graduates of RMC receive a degree and are commissioned as officers in the Canadian Armed Forces.

• RMC is also known for its rigorous physical fitness program and extracurricu...read more

Contours are imaginary lines that connect points of equal elevation on a map or surface.

• Contours are used in topographic maps to show the shape and elevation of the land.

• They help visualize the terrain and identify features such as hills, valleys, and slopes.

• Closer contour lines indicate steeper slopes, while widely spaced lines represent flatter areas.

• Contour lines never cross each other and form closed loops around hilltops or depressions.

• The elevation difference between co...read more