100+ Quantity Surveyor Interview Questions and Answers

If the site quantity differs from the drawing quantity, I will take the following steps to address the issue.

• I will review the drawings and specifications to ensure accuracy.

• I will communicate with the project team, including the architect and engineer, to clarify any discrepancies.

• I will conduct a site visit to physically verify the quantities and compare them with the drawings.

• If there are significant differences, I will document them and notify the relevant parties, such a...read more

Evidential documents required for scrutinizing the RA Bill

• Contract documents

• Measurement sheets

• Bills of quantities

• Variation orders

• Payment certificates

Components to be considered in Rate analysis

• Cost of materials

• Cost of labor

• Cost of equipment

• Overhead expenses

• Profit margin

• Taxes and duties

• Transportation costs

• Wastage and spoilage

• Contingencies

• Productivity rates

• Market rates

• Inflation rates

Deduction as per IS code for Connecte, Shuttering & Plaster

• As per IS code, deduction for connected items is 2.5% of the total quantity

• For shuttering, deduction is 10% of the total surface area

• For plaster, deduction is 20% of the total surface area

• These deductions are made to account for wastage and overlapping

Basic inputs for preparing the Bill of Quantities include drawings, specifications, and site visits.

• Drawings: Architectural, structural, and MEP drawings are essential for accurately quantifying materials and labor.

• Specifications: Detailed project specifications outline the quality and standards required for each item in the bill.

• Site visits: Surveyors need to visit the site to assess existing conditions, access, and any potential challenges that may impact the quantities.

• Ten...read more

Reconciliation of steel involves comparing the actual quantity of steel used in a construction project with the estimated quantity.

• Reconciliation of steel is a process used in construction projects to ensure that the actual quantity of steel used matches the estimated quantity.

• It involves comparing the quantity of steel recorded in the project's documentation, such as drawings and specifications, with the quantity of steel actually installed on site.

• Any discrepancies between ...read more

Verify the bill by checking quantities, rates, unit prices, supporting documents, and site measurements.

• Check quantities mentioned in the bill against the actual work done on site.

• Verify rates and unit prices for each item in the bill with the contract agreement.

• Ensure all supporting documents such as invoices, receipts, and delivery notes are provided.

• Conduct site measurements to confirm the work completed matches the bill submitted.

Justification of change of scope works involves thorough analysis, cost estimation, impact assessment, and communication with stakeholders.

• Conduct a detailed analysis of the proposed changes in scope, including the reasons for the change and the potential impact on the project.

• Estimate the additional costs and resources required for the change of scope works, taking into account materials, labor, and any other relevant factors.

• Assess the impact of the change on the project ti...read more

Rolling margin is a financial term that refers to the difference between the revenue generated and the variable costs incurred over a specific period of time.

• Rolling margin is used to measure the profitability of a business or project.

• It helps in assessing the efficiency of operations and identifying areas for cost reduction.

• The formula for calculating rolling margin is: (Revenue - Variable Costs) / Revenue * 100.

• For example, if a company generates $100,000 in revenue and inc...read more

Preparing BOQ requires attention to detail, AutoCAD certification is beneficial, and Civil Engineering experience is necessary.

• BOQ preparation involves accurately quantifying materials and labor required for a project

• AutoCAD certification demonstrates proficiency in using the software for design and drafting

• Civil Engineering experience provides knowledge of construction methods and materials

• BOQ preparation and AutoCAD certification are complementary skills for a Quantity Surv...read more

The documents required to certify the final bill as a Quantity Surveyor.

• Contract documents

• Measurement records

• Variation orders

• Payment certificates

• Final account statement

• As-built drawings

• Completion certificates

• Test reports

• Subcontractor invoices

• Material invoices

Rate analysis is done by breaking down the cost of each item in a construction project to determine the overall cost.

• Rate analysis involves breaking down the cost of each item in a construction project.

• The cost of materials, labor, and equipment is analyzed to determine the overall cost.

• Quantities of each item are measured and multiplied by their respective rates to calculate the cost.

• Rate analysis helps in estimating the budget for a project and comparing different options.

• F...read more

The work procedure in our organization for RA Bill preparation involves several steps.

• Gathering all relevant project documents and information

• Analyzing the project scope and specifications

• Measuring and quantifying the work done on-site

• Preparing detailed rate analysis for each item of work

• Calculating the quantities and rates for each item

• Preparing the bill of quantities (BOQ)

• Cross-checking the BOQ with the project specifications

• Reviewing and verifying the bill with the client ...read more

Mode of measurement refers to the standard method used to measure quantities in construction projects.

• It is important to establish a clear mode of measurement to ensure consistency and accuracy in cost estimation.

• Common modes of measurement include SMM7, CESMM, and NRM.

• SMM7 (Standard Method of Measurement) is widely used in the UK for building works.

• CESMM (Civil Engineering Standard Method of Measurement) is used for civil engineering works.

• NRM (New Rules of Measurement) is a...read more

Contact documents are essential in bill preparation as they outline the terms and conditions of the contract, provide clarity on project scope, and ensure fair payment for work done.

• Contact documents define the legal agreement between the parties involved in a construction project.

• They outline the terms and conditions, including project scope, deliverables, timelines, and payment terms.

• Contact documents provide clarity on the responsibilities and obligations of each party, mi...read more

The amount of cement required for M25 grade of concrete depends on the mix ratio and the volume of concrete needed.

• The mix ratio for M25 grade of concrete is 1:1:2 (cement:sand:aggregate)

• The volume of concrete needed must be determined first

• Assuming a volume of 1 cubic meter, the amount of cement required would be approximately 6-7 bags (depending on the brand and type of cement)

• It is important to factor in wastage and spillage when calculating the amount of cement needed

The code for structural steel is typically governed by the American Institute of Steel Construction (AISC) while reinforced steel is governed by the American Concrete Institute (ACI).

• Structural steel is commonly used in the construction of buildings, bridges, and other structures.

• The AISC provides standards and guidelines for the design, fabrication, and erection of structural steel.

• Reinforced steel, also known as rebar, is used to strengthen concrete structures.

• The ACI provi...read more

The quantity of cement and sand in 1sqm plastering depends on the thickness of the plaster.

• The thickness of the plaster is a crucial factor in determining the quantity of cement and sand.

• The ratio of cement to sand also affects the quantity.

• For a 15mm thick plaster, the approximate quantity of cement is 16 kg and sand is 75 kg per square meter.

• For a 20mm thick plaster, the approximate quantity of cement is 21 kg and sand is 100 kg per square meter.

The consumption for mortar 1:3 and 1:6 ratio depends on the area to be covered and thickness of the layer.

• The consumption of mortar is calculated in terms of volume.

• For 1:3 ratio, the mix proportion is 1 part cement and 3 parts sand.

• For 1:6 ratio, the mix proportion is 1 part cement and 6 parts sand.

• The thickness of the layer also affects the consumption of mortar.

• The area to be covered is calculated by multiplying the length and width of the surface.

• The consumption can be ca...read more

BBS stands for Bar Bending Schedule, which is a detailed list of reinforcement bars in a concrete element.

• BBS is prepared based on the structural drawings and specifications.

• It includes the diameter, length, shape, and number of reinforcement bars required for the element.

• BBS helps in estimating the quantity of steel required and also ensures the correct placement of reinforcement bars.

• It is an essential document for the construction team and is used during the fabrication, t...read more

Quantity surveying is a profession that deals with construction costs and contracts.

• Quantity surveyors manage the financial aspects of construction projects.

• They estimate and monitor costs, prepare contracts, and advise on procurement strategies.

• They also ensure that projects are completed within budget and on time.

• Examples of tasks include preparing bills of quantities, valuing variations, and negotiating with contractors.

• Quantity surveyors work closely with architects, engi...read more

Current CTC is $60,000 and Expected CTC is $70,000.

• Current CTC is the current annual salary of the candidate.

• Expected CTC is the annual salary the candidate is expecting from the new job.

• It is important for the employer to know the candidate's salary expectations to assess if it aligns with the budget.

• For example, if the candidate's Current CTC is $50,000 and Expected CTC is $65,000, there is a $15,000 difference.

The percentage of wastage varies depending on the project and materials used.

• The percentage of wastage can be calculated by dividing the amount of material wasted by the total amount of material used and multiplying by 100.

• Factors that can contribute to wastage include poor planning, inaccurate measurements, and human error.

• The percentage of wastage can be reduced through careful planning, accurate measurements, and proper training of workers.

• For example, the percentage of wa...read more

Factors to consider while concreting

• Quality of materials used

• Proper mixing of materials

• Correct proportion of water to cement

• Suitable curing time and conditions

• Proper compaction of concrete

• Weather conditions

• Site conditions

• Availability of equipment and labor

• Adherence to safety standards

The formula for calculating the weight of a steel bar is based on its volume and density.

• The formula is: Weight = Volume x Density

• To calculate the volume of a steel bar, use the formula: Volume = (π x (Diameter)^2 x Length) / 4

• Density of steel is typically around 7850 kg/m^3

• For example, to calculate the weight of a steel bar with a diameter of 10mm and length of 1m: Weight = ((π x (10)^2 x 1000) / 4) x 7850

To calculate concrete quantity of slab, steel reinforcement, shuttering and form works, various factors such as dimensions, thickness, reinforcement spacing, etc. need to be considered.

• Calculate the area of the slab

• Determine the thickness of the slab

• Calculate the volume of concrete required

• Determine the spacing and size of steel reinforcement

• Calculate the weight of steel reinforcement required

• Calculate the quantity of shuttering and form works required

To raise income of the company as a Quantity Surveyor, I would focus on cost control, value engineering, and business development.

• Implement cost control measures to reduce expenses and increase profitability

• Identify opportunities for value engineering to optimize project costs without compromising quality

• Develop and maintain strong client relationships to secure repeat business and referrals

• Explore new markets and expand the company's services to attract more clients

• Collabora...read more

The strength of concrete depends on its mix design and curing process.

• The strength of concrete is measured in terms of its compressive strength, which is the maximum load it can bear before crushing.

• The mix design of concrete includes the ratio of cement, sand, and aggregates used in it.

• The curing process of concrete involves keeping it moist and at a specific temperature for a certain period of time to ensure its strength.

• The strength of concrete can vary depending on its in...read more

BOQ stands for Bill of Quantities and MoRTH handbook provides detailed descriptions for each item.

• BOQ is a document used in construction projects to list the materials, parts, and labor needed for a project.

• MoRTH handbook stands for Ministry of Road Transport and Highways handbook which provides detailed descriptions for each item in construction projects.

• Both BOQ and MoRTH handbook help in accurate cost estimation and project planning.

• Example: BOQ may include quantities of b...read more

Rate analysis is the process of determining the unit cost of a particular item or activity in a construction project.

• Identify the item or activity to be analyzed

• Determine the quantity of materials and labor required

• Calculate the cost of materials and labor

• Add overhead costs and profit margin

• Divide the total cost by the quantity to get the unit rate

• Compare the rate with market rates to ensure competitiveness

Yes, I am familiar with costX software.

• I have used costX software extensively in my previous job as a Quantity Surveyor.

• It is a powerful tool for estimating and managing project costs.

• Some of its features include 3D takeoff, cost planning, and tender management.

• I have also used it for generating reports and analyzing data.

• Overall, I find costX to be a very useful software for Quantity Surveyors.

Yes, I am proficient in AutoCAD and Excel.

• I have extensive experience using AutoCAD for creating and editing technical drawings.

• I am skilled in using Excel for data analysis, calculations, and creating spreadsheets.

• I have successfully completed projects where I utilized both AutoCAD and Excel.

• I am familiar with the various features and functions of both software.

• I can efficiently generate quantity take-offs and cost estimates using AutoCAD and Excel.

Different types of bills in quantity surveying

• Measurement bill: It includes the detailed measurements of various items of work.

• Abstract bill: It provides a summary of all the measurements and quantities of work done.

• Cost bill: It includes the cost of each item of work and the total cost of the project.

• Final bill: It is the final settlement bill after completion of the project.

• Interim bill: It is prepared at regular intervals during the progress of the project.

• Supplementary bi...read more

I referred to several books for estimation including 'Estimating for Interior Designers' and 'Construction Estimating'

• I referred to 'Estimating for Interior Designers' by Carol Sampson for interior design projects

• I also referred to 'Construction Estimating' by Leonard P. Toenjes for general construction projects

• Other books I used include 'Estimating Building Costs' by Calin M. Popescu and 'Estimating in Building Construction' by Frank R. Dagostino and Leslie Feigenbaum

The question asks about the code for mode of measurement, types of joints in flooring, and previous projects and estimation preparation.

• The code for mode of measurement refers to the standard method used to measure quantities in construction projects.

• Types of joints in flooring include butt joints, tongue and groove joints, and expansion joints.

• Previous projects can include residential buildings, commercial complexes, or infrastructure projects.

• Estimation preparation involves...read more

Yes, IS code is used for measurement of building works.

• IS code stands for Indian Standards code.

• IS 1200 is the code used for measurement of building works.

• It provides guidelines for measurement and billing of construction works.

• It covers various aspects such as earthwork, concrete, brickwork, etc.

Yes, I have experience in building Bill of Quantities (BOQ) for construction projects.

• I have prepared BOQs for various construction projects, detailing the quantities and costs of materials, labor, and equipment needed.

• I am familiar with industry standards and software used for BOQ preparation, such as CostX and Bluebeam.

• My experience includes collaborating with architects, engineers, and contractors to ensure accurate and comprehensive BOQs.

• I have also reviewed and revised B...read more

BBS preparation is essential for ensuring the strength and stability of footings and slabs.

• BBS stands for Bar Bending Schedule and involves preparing a detailed list of reinforcement bars required for the footing or slab.

• The BBS takes into account the design drawings and specifications to ensure the correct size, spacing, and placement of reinforcement bars.

• The BBS also helps to estimate the quantity of steel required and the cost of materials.

• Proper BBS preparation is crucia...read more

I will evaluate the subcontractor's qualifications, experience, and track record before considering them for the contract.

• Review the subcontractor's past work and references

• Assess the subcontractor's financial stability and capacity to complete the work

• Negotiate terms and conditions of the contract to ensure clarity and alignment of expectations

• Monitor the subcontractor's performance throughout the project to ensure quality and timeliness

• Address any issues or disputes promptl...read more

The standard deduction as per IS 1200 is a fixed amount that can be deducted from the measured quantities of certain items in a construction project.

• The standard deduction is typically used for items like scaffolding, formwork, and centering in construction projects.

• It is a fixed percentage of the measured quantity, usually ranging from 2% to 5% depending on the item and project.

• The purpose of the standard deduction is to account for wastage, spillage, and minor discrepancies...read more

Rate analysis involves calculating the cost of different items in a construction project, such as masonry works.

• Rate analysis helps in determining the cost of materials, labor, and equipment for each item in a project.

• It involves breaking down the total cost into components like material cost, labor cost, equipment cost, and overheads.

• For masonry works, the rate analysis would include calculating the cost of bricks, cement, sand, labor, and other associated costs.

• Rate analysi...read more

The grade of concrete refers to its strength and is determined by the ratio of cement, sand, and aggregate used in its composition.

• The grade of concrete is denoted by a number, such as M20 or M30, where the letter 'M' stands for mix and the number denotes the strength in megapascals (MPa).

• The strength of concrete increases with the increase in the grade number.

• The ratio of cement, sand, and aggregate used in the mix determines the grade of concrete.

• For example, M20 grade conc...read more

One way slab is supported by beams on two opposite sides while two way slab is supported by beams on all four sides.

• One way slab is economical for smaller spans and lighter loads.

• Two way slab is suitable for larger spans and heavier loads.

• One way slab has bending in one direction only.

• Two way slab has bending in both directions.

• One way slab is designed as simply supported slab.

• Two way slab is designed as continuous slab.

• Examples of one way slab: balcony, veranda, etc.

• Examples...read more

The cost of labor per one cubic meter of concrete varies depending on the location, complexity of the project, and experience of the workers.

• Labor cost can range from $50 to $200 per cubic meter of concrete

• Factors affecting labor cost include location, project complexity, and worker experience

• Labor cost may also vary depending on the type of concrete being used

• It is important to consider labor cost when estimating the total cost of a construction project

SMM7 stands for Standard Method of Measurement of Building Works 7th Edition.

• SMM7 is a standard method used in the UK construction industry to measure building works.

• It provides a uniform basis for measuring and describing building works.

• SMM7 includes rules for measuring quantities of materials, labor, and plant.

• It also covers topics such as preliminaries, overheads, and profit.

• SMM7 was replaced by the New Rules of Measurement (NRM) in 2013.

Cost to complete refers to the estimated amount of money required to finish a project or task.

• Cost to complete is an important metric used in project management and quantity surveying.

• It takes into account the remaining work, resources, and expenses needed to complete a project.

• It helps in assessing the financial status of a project and making informed decisions.

• Cost to complete can be calculated by subtracting the actual cost incurred from the total estimated cost.

• For exampl...read more

Quantity survey involves estimating and managing costs of construction projects while billing is the process of invoicing clients for work done.

• Quantity survey involves cost estimation, cost control, and cost management of construction projects.

• Billing is the process of invoicing clients for work done on a project.

• Quantity surveyors work closely with architects, engineers, and contractors to ensure that projects are completed within budget.

• Billing is a crucial part of project...read more