Enrich Energy CAD Technician Interview Questions and Answers

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Q1. Salary discussion
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Q2. Joining procedures and company policy
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Q1. Qty of cement in M25 grade concrete
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The quantity of cement in M25 grade concrete is 350 kg/m³.
• M25 grade concrete has a mix proportion of 1:1:2 (cement:sand:aggregate).

• The total volume of concrete is taken as 1 m³.

• Therefore, the quantity of cement required for 1 m³ of M25 grade concrete is 350 kg.

• This is calculated by multiplying the volume of concrete by the proportion of cement in the mix.
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Q2. Exact weight of different dia of steel
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The weight of steel varies with its diameter.
• The weight of steel can be calculated using the formula: weight = volume x density

• The density of steel is approximately 7850 kg/m³

• The volume of steel can be calculated using the formula: volume = pi x (diameter/2)² x length

• For example, a 10mm diameter steel rod with a length of 1 meter would weigh approximately 0.393 kg
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Q3. Process of waterproofing
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Waterproofing is the process of making a structure or object resistant to water penetration.
• Identify the areas that need waterproofing such as roofs, walls, and foundations.

• Clean and prepare the surface to be waterproofed.

• Apply a waterproofing membrane or coating such as bituminous, acrylic, or polyurethane.

• Ensure proper drainage and slope to prevent water accumulation.

• Test the waterproofing system for leaks and make n...read more
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Q4. Conversion of brass to Cum
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Conversion of brass to Cum
• Brass is an alloy of copper and zinc, while Cum is not a known substance

• It is not possible to convert brass to Cum

• Perhaps the question is referring to a different substance or material
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Q1. Mivan setting and drawing
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Q2. Slab checking slab cycle
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Q3. Interior change in drawing
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Interior change in drawing refers to modifying the internal elements of a design or blueprint.
• Identify the specific elements that need to be changed

• Consider the impact of the changes on the overall design

• Update the drawing with the new interior layout

• Ensure that the changes align with the project requirements
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Q4. Bathroom waterproofing and plumbing
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Q5. Estimation and costing
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Q6. Bar bending schedule
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Q1. Formula for Unit weight of steel rebar
Ans. 
Unit weight of steel rebar is calculated using a specific formula based on the dimensions of the rebar.
• Unit weight of steel rebar = (D^2/162.2) * L, where D is the diameter of the rebar in inches and L is the length of the rebar in feet.

• The formula is derived from the weight of a steel bar per foot, which is 3.4 pounds for a rebar with a diameter of one inch.

• For example, a steel rebar with a diameter of 0.5 inches and ...read more
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Q1. Concrete pouring method
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Concrete pouring method involves the process of placing and compacting concrete into a formwork to create a solid structure.
• Ensure formwork is properly prepared and secured before pouring concrete

• Use appropriate equipment such as concrete pumps or buckets for pouring

• Monitor concrete flow and consistency to avoid segregation or honeycombing

• Properly compact the concrete to remove air voids and ensure strength

• Allow suffic...read more
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Q2. Shuttering of columns
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Shuttering of columns is the process of creating temporary formwork to support concrete until it sets.
• Shuttering is usually made of plywood, timber, or steel.

• It is important to ensure the shuttering is properly supported and aligned before pouring concrete.

• The shuttering should be removed after the concrete has set to the required strength.

• Properly designed and constructed shuttering helps in achieving a smooth and uni
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Q3. Reinforcement checking checklist points
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Q4. Tiles placing method
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Tiles can be placed using various methods such as grid layout, random pattern, or specific design layout.
• Tiles can be placed in a grid layout for a uniform and organized look.

• Random pattern placement can create a more eclectic and unique design.

• Specific design layout involves placing tiles according to a pre-determined pattern or design.

• Consider factors like tile size, shape, color, and grout spacing when deciding on t
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Q5. Flooring method for stone work
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The flooring method for stone work typically involves using mortar or adhesive to secure the stones in place.
• Prepare the subfloor by ensuring it is clean, level, and dry

• Apply mortar or adhesive to the back of each stone before placing it on the subfloor

• Use spacers to maintain consistent spacing between stones

• Allow the mortar or adhesive to dry completely before grouting the joints

• Seal the finished stone floor to protec
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Q1. What is the weight of one bag cement
Ans. 
The weight of one bag of cement varies depending on the country and type of cement.
• The weight of one bag of cement is typically between 25kg and 50kg.

• In the United States, a bag of Portland cement usually weighs 94 pounds (42.6kg).

• In Europe, a bag of cement typically weighs 50kg.

• Different types of cement, such as lightweight cement, may have different weights per bag.
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Q2. What is initial setting time of cement
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Initial setting time of cement is the time taken for the cement paste to harden sufficiently to resist certain specified pressure.
• Initial setting time is an important property of cement as it determines the time available for mixing, placing, and finishing of concrete.

• It is measured by the Vicat apparatus, which consists of a needle and a mould filled with cement paste.

• The initial setting time is typically around 30 mi...read more
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Q3. What is the size of concrete cube
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The size of a concrete cube refers to its dimensions, typically measured in millimeters.
• The size of a concrete cube is usually specified by the engineer or client.

• Common sizes for concrete cubes are 150mm, 200mm, and 300mm.

• The size of the cube is important for testing the compressive strength of the concrete.

• The cubes are typically cast and cured for a specific period before testing.
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Q4. What is the minimum diameter for doweals bar
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The minimum diameter for dowel bars depends on the specific application and design requirements.
• The minimum diameter for dowel bars is typically specified in the project's design documents or specifications.

• It is important to consider factors such as the load transfer requirements, concrete strength, and spacing between dowel bars when determining the minimum diameter.

• In general, dowel bars for pavement joints are comm...read more
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Q1. What is the lap length of bars for compperision zone
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The lap length of bars for compression zone is the minimum length required to ensure proper transfer of stress between two overlapping bars.
• The lap length is determined based on the diameter of the bars, concrete strength, and the bond strength between the bars and concrete.

• It is important to provide adequate lap length to prevent failure due to inadequate bond between the bars and concrete.

• The lap length for compressi...read more
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Q2. What is the minimum alowable ph value of water
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The minimum allowable pH value of water is 6.5.
• The minimum allowable pH value of water is determined by various regulatory bodies and standards.

• For drinking water, the World Health Organization recommends a minimum pH of 6.5 to prevent corrosion of pipes and plumbing fixtures.

• In some industrial processes, a minimum pH of 6.0 or even lower may be required.

• Water with a pH below the minimum allowable value may be consider...read more
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Q1. What is your work experience?
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Q1. What is your job experience?
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