QS Engineer

30+ QS Engineer Interview Questions and Answers

Updated 30 Jan 2025
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Q1. Basic specifications of Plastering, How much Deductions are to be made for plastering (internal and External), what is Bar Bending Schedule what will be the cutting length for stirrups of Beam size 230x450 what...

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Ans.

Answers to questions related to QS Engineer job interview

  • Basic specifications of plastering include thickness, mix ratio, curing time, etc.

  • Deductions for plastering depend on the type of surface and thickness of plaster

  • Bar Bending Schedule is a document that lists the reinforcement details of a structure

  • Cutting length for stirrups of beam depends on the diameter of the stirrup and spacing

  • Basic documentation for certification of bill includes measurement book, work order, comp...read more

Q2. What is FDD what is the density of soil Loose and Compacted?

Ans.

FDD stands for Field Density Test. Loose soil density ranges from 1.2 to 1.4 g/cm³ and compacted soil density ranges from 1.4 to 1.6 g/cm³.

  • FDD is a test used to determine the density of soil in the field.

  • Loose soil density ranges from 1.2 to 1.4 g/cm³.

  • Compacted soil density ranges from 1.4 to 1.6 g/cm³.

  • The density of soil affects its strength and load-bearing capacity.

  • The density of soil can be increased through compaction techniques such as tamping or rolling.

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Q3. What is the IS code of BBS & Measurements?

Ans.

The IS code for BBS & Measurements is IS 13920:2016.

  • IS 13920:2016 is the Indian Standard code for detailing of reinforcement in concrete structures.

  • It provides guidelines for the preparation of bar bending schedules (BBS) and measurement of reinforcement.

  • The code specifies the requirements for the dimensions, shape, and position of reinforcement in various structural elements.

  • It also covers the calculation of cutting length, development length, and lap length of reinforcement...read more

Q4. What is CA and how many schedule are there?

Ans.

CA stands for Contract Administration. There are typically 3 schedules in a construction contract.

  • CA involves managing and enforcing the terms of a construction contract.

  • The 3 schedules in a construction contract are typically: Schedule of Values, Payment Schedule, and Change Order Schedule.

  • The Schedule of Values outlines the budget for the project, the Payment Schedule outlines when payments will be made, and the Change Order Schedule outlines the process for making changes ...read more

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Q5. if the cross section of a 1 km road consists of WMM and GSB layers, whether the quantities of WMM and GSB are Equal or not.

Ans.

The quantities of WMM and GSB layers in a 1 km road cross section are not necessarily equal.

  • Quantities of WMM and GSB layers depend on the design specifications of the road.

  • WMM (Wet Mix Macadam) and GSB (Granular Sub Base) layers serve different purposes in road construction.

  • For example, if the road is designed to withstand heavy traffic, the quantity of GSB may be higher than WMM.

Q6. What is rate analysis? Have you done this?

Ans.

Rate analysis is the process of determining the rates of various items of work involved in a construction project.

  • It involves breaking down the cost of a project into individual components

  • It helps in estimating the total cost of a project

  • It helps in comparing the cost of different projects

  • Yes, I have done rate analysis for various construction projects

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Q7. How to calculate steel reinforcement of piles?

Ans.

Steel reinforcement of piles is calculated based on the load capacity and design of the pile.

  • Determine the load capacity and design of the pile

  • Calculate the required cross-sectional area of steel reinforcement

  • Determine the spacing and diameter of the reinforcement bars

  • Calculate the total length of steel reinforcement required

  • Consider any additional factors such as corrosion protection

  • Ensure compliance with relevant codes and standards

Q8. What are the deductions considering while measuring plastering quantity?

Ans.

Deductions considered while measuring plastering quantity

  • Deductions for openings such as doors and windows

  • Deductions for uneven surfaces or irregular shapes

  • Deductions for wastage during application

  • Deductions for overlaps in plastering layers

  • Deductions for thickness variations

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Q9. Upto 0.5 Sqm - No Deduction 0.5 to 3 Sqm - One Side Deduction Above 3 Sqm - Full Deduction to be done & Door Jamb to be measured seperately

Ans.

The deduction criteria for different sizes of door openings are specified, with special instructions for door jambs above 3 Sqm.

  • No deduction for openings up to 0.5 Sqm

  • One side deduction for openings between 0.5 and 3 Sqm

  • Full deduction for openings above 3 Sqm, with separate measurement for door jamb

Q10. What is OGL Sampling and details of it?

Ans.

OGL Sampling stands for OpenGL Sampling. It is a technique used to improve the quality of graphics rendering in computer graphics.

  • OGL Sampling is used to reduce aliasing and improve the quality of graphics.

  • It involves taking multiple samples of a pixel and averaging the color values to produce a smoother image.

  • The number of samples taken per pixel can be adjusted to balance quality and performance.

  • OGL Sampling is commonly used in video games and other real-time graphics appli...read more

Q11. what is the differentiation between value engineering and value management.

Ans.

Value engineering focuses on reducing costs while maintaining functionality, while value management focuses on maximizing value throughout the entire project lifecycle.

  • Value engineering aims to identify cost-saving opportunities without compromising quality or functionality.

  • Value management takes a broader approach, considering the entire project lifecycle and focusing on maximizing value for all stakeholders.

  • Value engineering is often applied during the design phase to optim...read more

Q12. What is general format for bill preparation?

Ans.

The general format for bill preparation includes itemized list of services or products provided, quantities, rates, and total amount due.

  • Include a header with company name, address, and contact information

  • List each service or product provided with a description, quantity, rate, and subtotal

  • Calculate any applicable taxes or discounts and include them in the total amount due

  • Provide payment terms and methods accepted

  • Include a due date for payment

  • Ensure the bill is clear, organiz...read more

Q13. What is EPC Contract?

Ans.

EPC Contract stands for Engineering, Procurement, and Construction Contract.

  • EPC Contract is a type of construction contract where the contractor is responsible for the entire project from design to construction.

  • The contractor is responsible for the engineering, procurement, and construction of the project.

  • EPC Contracts are commonly used in large-scale infrastructure projects such as power plants, oil refineries, and highways.

  • The contractor is responsible for delivering the pr...read more

Q14. what is the rolling margin in steel consumption

Ans.

Rolling margin in steel consumption refers to the percentage of excess steel ordered to account for potential wastage during the manufacturing process.

  • Rolling margin is typically around 5-10% of the total steel consumption.

  • It helps to ensure that there is enough steel available to complete a project without running out.

  • Factors such as the complexity of the project and the experience of the manufacturer can influence the rolling margin.

  • For example, if a project requires 100 to...read more

Q15. Stirrup Calculation, Quantity of materials in 1 cum of concrete

Ans.

Stirrup calculation and material quantity in 1 cum of concrete.

  • Stirrup calculation involves determining the number, size, and spacing of stirrups required for a reinforced concrete element.

  • The quantity of materials in 1 cum of concrete depends on the mix design and the required strength of the concrete.

  • For example, for M20 grade concrete, the quantity of materials required for 1 cum of concrete is 0.28 cum of cement, 0.46 cum of sand, and 0.84 cum of coarse aggregates.

  • The qua...read more

Q16. Take block work and plastering quantity from Autocad rqwing

Ans.

To take block work and plastering quantity from Autocad rqwing, follow these steps:

  • Open the Autocad rqwing file

  • Select the block work and plastering area

  • Use the 'Measure' tool to calculate the area

  • Multiply the area by the thickness of the block work and plastering to get the volume

  • Convert the volume to quantity using the density of the material

  • Repeat the process for all block work and plastering areas

  • Sum up the quantities to get the total quantity

Q17. How to monitor over lapping ?

Ans.

Overlapping can be monitored by using software tools that can detect and highlight overlapping areas.

  • Use software tools like AutoCAD, Revit, or Navisworks to detect overlapping elements

  • Check for clashes between different systems like mechanical, electrical, and plumbing

  • Perform regular clash detection tests during the design and construction phases

  • Ensure that all stakeholders are aware of the overlapping issues and work together to resolve them

Q18. Software used for quantity calculation ?

Ans.

Software used for quantity calculation includes AutoCAD, Revit, Bluebeam, PlanSwift, and On-Screen Takeoff.

  • AutoCAD is a popular software for 2D and 3D design and drafting

  • Revit is a BIM software used for building design and construction

  • Bluebeam is a PDF software with measurement tools for estimating

  • PlanSwift is a takeoff and estimating software for construction

  • On-Screen Takeoff is a digital takeoff software for construction

Q19. Can you do multi tasking ?

Ans.

Yes, I am able to multitask effectively by prioritizing tasks, staying organized, and managing my time efficiently.

  • I prioritize tasks based on deadlines and importance

  • I stay organized by using tools like to-do lists and calendars

  • I manage my time effectively by setting realistic goals and deadlines

  • Example: I have successfully managed multiple projects simultaneously by dividing my time and attention appropriately

Q20. Rate analysis how will you do

Ans.

Rate analysis involves calculating the cost of materials, labor, and equipment for a construction project.

  • Identify the quantities of materials needed for the project

  • Determine the cost of each material

  • Calculate the cost of labor and equipment needed for the project

  • Add all costs together to determine the total cost of the project

  • Use software programs or spreadsheets to simplify the process

  • Regularly update the rate analysis to reflect changes in material and labor costs

Q21. What is BBS, BOQ, RA Bills?

Ans.

BBS stands for Bar Bending Schedule, BOQ stands for Bill of Quantities, RA Bills stands for Running Account Bills.

  • BBS is a detailed list of reinforcement bars required for construction as per drawings and specifications.

  • BOQ is a document containing itemized list of materials, parts, and labor with their costs for a construction project.

  • RA Bills are interim payment requests submitted by contractors based on work completed at a given point in time.

  • Example: BBS includes details ...read more

Q22. How to calculate FAR & FSI

Ans.

FAR & FSI are calculated by dividing the total floor area by the area of the plot.

  • FAR (Floor Area Ratio) is calculated by dividing the total floor area of a building by the area of the plot.

  • FSI (Floor Space Index) is calculated by dividing the total floor area of all floors of a building by the area of the plot.

  • FAR and FSI are used to determine the maximum allowable floor area of a building on a given plot of land.

  • For example, if a plot of land is 1000 square meters and the F...read more

Q23. Tender clause & Mode of measurement IS-1200

Ans.

Tender clause & Mode of measurement IS-1200 are standard specifications used in construction contracts.

  • Tender clause specifies the terms and conditions of the contract, including payment terms, completion time, and penalties for delays.

  • Mode of measurement IS-1200 is a standard method for measuring quantities of construction work.

  • It provides a uniform basis for preparing bills of quantities, which are used to estimate the cost of construction projects.

  • IS-1200 covers various as...read more

Q24. IS Code for Method of Measurement

Ans.

IS Code for Method of Measurement is IS 1200: Part 1

  • IS 1200: Part 1 is the Indian Standard Code for Method of Measurement of Building and Civil Engineering Works

  • It provides guidelines for measurement of various items in construction projects

  • The code helps in standardizing measurement practices to ensure consistency and accuracy in project estimation

Q25. Which all languages do you know

Ans.

I am proficient in English, Spanish, and French.

  • English

  • Spanish

  • French

Q26. IS Code Mode of Measurements

Ans.

IS Code Mode of Measurements refers to the Indian Standard code for measurement practices in construction projects.

  • IS Code Mode of Measurements is a set of guidelines provided by the Bureau of Indian Standards (BIS) for accurate measurement of quantities in construction projects.

  • These guidelines cover various aspects such as units of measurement, methods of measurement, and rules for taking measurements.

  • For example, IS 1200 provides guidelines for measurement of earthwork in ...read more

Q27. Grades of concrete and application areas

Ans.

Grades of concrete indicate the strength of the concrete mix. Different grades are used for different applications.

  • Grades of concrete are denoted by the strength they can withstand, such as M20, M30, etc.

  • Higher grade concrete like M30 or above is used for structures like bridges, high-rise buildings, etc.

  • Lower grade concrete like M20 is used for residential buildings, pavements, etc.

Q28. Plaster Deductions as Per IS Code

Ans.

Plaster deductions as per IS code refer to the allowable deductions in plaster thickness for different types of surfaces.

  • Plaster deductions are specified in IS 456:2000 for different types of surfaces like brickwork, concrete, etc.

  • For brickwork, the deduction is 12 mm, for concrete it is 6 mm, and for metal it is 3 mm.

  • These deductions are important to ensure proper bonding and strength of the plaster.

  • Following IS code guidelines is crucial to maintain quality and durability o...read more

Q29. Reconciliation of steel and concrete

Ans.

Reconciliation of steel and concrete is the process of verifying the quantity of steel and concrete used in a construction project.

  • It involves comparing the actual quantity of steel and concrete used with the planned quantity.

  • Any discrepancies are identified and addressed.

  • Reconciliation ensures that the structure is safe and meets the design requirements.

  • It also helps in controlling costs and avoiding wastage of materials.

  • For example, if the planned quantity of steel was 100 ...read more

Q30. What is meant by reconcilation

Ans.

Reconciliation is the process of comparing two sets of records to ensure they are in agreement.

  • Reconciliation involves verifying and adjusting financial statements to match with bank statements.

  • It is also used in the context of resolving discrepancies between different data sets or accounts.

  • Reconciliation helps in identifying errors, fraud, or missing transactions.

  • Examples include reconciling credit card statements with receipts, or reconciling inventory records with physical...read more

Q31. Do you have a vehicle

Ans.

Yes, I have a vehicle for transportation to and from work.

  • Yes, I have a car for commuting to work

  • I own a reliable vehicle for transportation

  • My vehicle is well-maintained and insured

Q32. Define roles of QS ?

Ans.

QS roles include cost estimation, budgeting, tendering, contract administration, and project management.

  • Estimating and costing of construction projects

  • Preparing tender documents and analyzing bids

  • Contract administration and management

  • Project management and coordination

  • Ensuring compliance with regulations and standards

Q33. Bar Bending schedule for Column

Ans.

Bar Bending schedule for Column involves detailing the reinforcement requirements for columns in a construction project.

  • Bar Bending schedule includes details of reinforcement bars, their sizes, shapes, and placement in the column.

  • It is essential for ensuring the structural integrity and strength of the column.

  • The schedule is prepared based on structural drawings and design requirements.

  • Example: A typical bar bending schedule for a column may specify the number of vertical bar...read more

Q34. Explain Rate analysis

Ans.

Rate analysis is the process of determining the rates of various items of work to calculate the cost of a project.

  • Rate analysis involves breaking down the cost of materials, labor, and equipment for each item of work in a project.

  • It helps in estimating the total cost of a project and in preparing accurate project budgets.

  • Rate analysis is essential for comparing different bids from contractors and ensuring fair pricing.

  • For example, in construction projects, rate analysis is us...read more

Q35. Bar Bending Schedule for Beam

Ans.

Bar Bending Schedule is a document detailing the reinforcement placement in a beam.

  • Bar Bending Schedule includes details like bar diameter, spacing, length, and shape for each bar in the beam.

  • It helps in ensuring proper reinforcement placement as per structural design requirements.

  • Example: Bar Bending Schedule for a beam may specify 10mm diameter bars at 150mm spacing with a total length of 2.5m.

Q36. Brief about prior experiwnce

Ans.

I have 5 years of experience working as a QS Engineer in construction projects.

  • Managed cost estimation and budgeting for various construction projects

  • Performed quantity surveying and cost control activities

  • Prepared tender documents and contracts

  • Collaborated with project managers, architects, and contractors

  • Ensured compliance with quality and safety standards

Q37. Strength of you

Ans.

My strength lies in my ability to adapt to new situations and learn quickly.

  • I am a quick learner and can easily adapt to new technologies and processes.

  • I am a problem solver and can think creatively to find solutions.

  • I am a team player and can work collaboratively with others to achieve common goals.

  • I am a good communicator and can effectively convey my ideas and thoughts to others.

  • I am a hard worker and am dedicated to achieving success in my work.

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