60+ Airfield Express Interview Questions and Answers

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

Permission to fix barricade boards can be obtained from the local government or relevant authorities.

• Permission can be obtained from the local municipality or city council.

• In some cases, permission may need to be sought from the transportation department or highway authority.

• The process of obtaining permission may involve submitting an application, providing details of the location and purpose of the barricade board.

• Permission may also require adherence to specific regulation...read more

Tolerance limits in various structure members, specifically piles.

• Tolerance limits in pile diameter can range from +/- 5mm to +/- 25mm depending on the design specifications.

• Tolerance limits in pile length can range from +/- 100mm to +/- 300mm depending on the design specifications.

• Tolerance limits in pile verticality can range from +/- 1% to +/- 5% depending on the design specifications.

• Tolerance limits in pile alignment can range from +/- 10mm to +/- 50mm depending on the d...read more

The minimum distance between piles to permit the bore successively depends on various factors such as soil conditions, pile diameter, and construction method.

• The minimum distance between piles should be determined based on the soil conditions. If the soil is weak or loose, a larger distance between piles may be required to ensure stability.

• The diameter of the piles also plays a role in determining the minimum distance. Larger diameter piles may require more space between them...read more

Breakers are electrical switches that protect circuits from overloading and short circuits.

• Circuit Breaker - protects circuits from overloading and short circuits

• Ground Fault Circuit Interrupter (GFCI) - protects against electrical shock in wet areas

• Arc Fault Circuit Interrupter (AFCI) - protects against electrical fires caused by arcing

• Main Breaker - controls power to the entire electrical panel

• Miniature Circuit Breaker (MCB) - protects individual circuits from overloading a...read more

The depth of socketing required in a pile depends on various factors such as soil conditions, load requirements, and design standards.

• Socketing depth is determined based on the type and strength of the soil.

• It is also influenced by the load-bearing capacity required for the structure.

• Design standards and codes provide guidelines for determining the socketing depth.

• For example, in cohesive soils, socketing depth may be specified as a certain percentage of the pile length.

• In gr...read more

Earthquake design of a multi storey building involves analyzing seismic forces, selecting appropriate structural systems, and implementing design measures to ensure safety.

• Analyze seismic forces based on the building location and seismic zone

• Select appropriate structural systems such as reinforced concrete or steel frames

• Implement design measures like base isolation, dampers, and shear walls to enhance building's seismic performance

Yes, shutter vibrator is relevant for a circular pier.

• Shutter vibrator is used to compact concrete and remove air voids.

• Circular piers also require proper compaction of concrete.

• Shutter vibrator helps in achieving uniform and dense concrete in circular piers.

• It ensures better strength and durability of the pier.

• Example: In the construction of a circular bridge pier, a shutter vibrator would be used to ensure proper compaction of concrete.

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

Bending moment diagram of a fixed beam subjected to udl throughout the whole length.

• Calculate the reactions at the supports of the beam

• Determine the equation for bending moment at any point along the beam

• Plot the bending moment diagram with positive and negative values

• The bending moment will be maximum at the supports and zero at the midpoint of the beam

The layout plan of a switching station includes the arrangement of equipment and the number of interrupters used.

• The layout plan of a switching station is designed to ensure efficient and safe operation.

• It includes the arrangement of various equipment such as transformers, circuit breakers, and disconnect switches.

• The number of interrupters used in a switching station depends on the size and capacity of the station.

• Interrupters are used to interrupt or break the flow of elect...read more

The neutral section and section insulator in OHE have important functions in electrical systems.

• The neutral section is used to provide a return path for the current in the electrical system.

• It helps maintain the balance of electrical potential between the overhead wires and the ground.

• The section insulator is used to electrically isolate different sections of the overhead wires.

• It prevents the flow of current between adjacent sections, allowing for better control and maintena...read more

Bending moment diagram of a 1-bay, 1-storey portal frame with point load at column middle.

• Calculate reactions at supports

• Determine internal forces at critical points

• Plot bending moment diagram using equations or software

• Identify maximum bending moment and its location

Bus bar schemes are different ways of connecting bus bars in power systems.

• Single bus bar scheme

• Double bus bar scheme

• Main and transfer bus bar scheme

• Ring bus bar scheme

• Breaker and a half scheme

• Mesh bus bar scheme

Starters are used to control the starting current of motors.

• Starters are used to limit the inrush current during motor starting.

• They protect the motor from damage due to high starting current.

• Types of starters include direct-on-line, star-delta, and soft starters.

• Starters are commonly used in industrial and commercial applications.

• Examples of applications include pumps, fans, and conveyor belts.

Dynamic method considers time history of earthquake while equivalent static method simplifies earthquake forces into equivalent static forces.

• Dynamic method analyzes building response to actual time history of earthquake ground motion.

• Equivalent static method simplifies earthquake forces into equivalent static forces based on simplified assumptions.

• Dynamic method is more accurate but computationally intensive, while equivalent static method is simpler and quicker to use.

• Dynam...read more

Hydration process is the chemical reaction between cement and water which results in the hardening of concrete.

• Hydration process starts as soon as water is added to cement.

• The reaction produces heat and causes the mixture to harden and gain strength.

• The process continues for weeks and even months, resulting in a stronger and more durable concrete.

• The amount of water used in the mixture affects the hydration process and the strength of the final product.

• Proper curing is necess...read more

Design process of one-way and two-way slabs and their differences

• One-way slab design involves calculating bending moments and shear forces along one direction, typically supported on two opposite sides. Two-way slab design considers bending moments and shear forces in both directions, usually supported on all four sides.

• One-way slab design is simpler and more common in practice, while two-way slab design is more complex and requires additional considerations such as torsion a...read more

HVDC is a technology used to transmit high voltage DC power over long distances. Offshore connections refer to power transmission from offshore wind farms.

• HVDC is more efficient than AC transmission over long distances

• Offshore connections require specialized equipment and installation techniques

• HVDC is used for offshore connections to transmit power from offshore wind farms to the mainland

• Examples of HVDC projects include the North Sea Link between Norway and the UK and the C...read more

The equipment sequence for any line bay starts with the circuit breaker and ends with the transformer.

• The circuit breaker is the first equipment in the sequence.

• Next comes the isolator switch.

• After that, the earth switch is operated.

• Then the line disconnector is opened.

• Finally, the transformer is disconnected from the line.

• The sequence is reversed when the line bay is put back into service.

The rating of a transformer is in kVA and the current can be found using the formula: Current (A) = kVA / (1.732 x Voltage)

• Transformer rating is in kVA (kilo-volt-ampere)

• To find the current in a transformer, use the formula: Current (A) = kVA / (1.732 x Voltage)

• For example, if a transformer has a rating of 100 kVA and operates at 480V, the current would be 100 / (1.732 x 480) = 120.7A

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I have delivered end to end bids independently in multiple situations.

• Researched and identified potential clients and opportunities

• Developed proposals and pricing strategies

• Managed the bid process from start to finish

• Collaborated with cross-functional teams to ensure all requirements were met

• Successfully secured contracts worth over $1 million

• Examples: XYZ project for ABC company, DEF project for GHI company

Synchronizing DGs involves coordinating their activities and ensuring they work together efficiently.

• Create a detailed project plan outlining the tasks and timelines for each DG

• Establish regular communication channels to share updates and resolve any conflicts

• Implement a centralized system for tracking progress and identifying dependencies

• Conduct regular meetings to discuss challenges, provide guidance, and align efforts

• Monitor and evaluate the performance of each DG to ident...read more

IS 10262 is required for mix design in civil engineering.

• IS 10262 is the code for concrete mix design in India.

• It provides guidelines for proportioning of concrete ingredients based on strength and durability requirements.

• The code covers various aspects such as water-cement ratio, workability, and compressive strength.

• Mix design is crucial for ensuring the desired properties and performance of concrete.

• Following the code helps in achieving the desired strength and durability ...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

The electrical layout of a substation includes distribution panels, transformers, switchgear, and cables to power different areas of the airport building.

• The Distribution Panel (DP) yard is where power is received from the grid and distributed to different areas.

• Transformers step down the voltage for use in the building.

• Switchgear controls the flow of electricity and protects against overloads.

• Cables run from the substation to various parts of the airport building, such as te...read more

Site execution and billing as per BOQ and balance work estimation

• Ensure site work is executed as per BOQ

• Estimate balance work and bill accordingly

• Maintain accurate records of work done and billed

• Coordinate with project manager and client for approvals

• Ensure timely payment for work done

Yes, I have extensive experience with basements and below ground structures.

• I have designed and analyzed numerous basements for residential and commercial buildings.

• I am familiar with waterproofing techniques and soil mechanics related to below ground structures.

• I have experience with retaining walls, foundations, and underground parking structures.

• I have worked on projects involving deep excavations and shoring systems.

• I have knowledge of relevant codes and standards for bel...read more

Transformers are sized based on load requirements and voltage levels.

• Determine the load requirements of the system

• Calculate the required kVA rating based on the load requirements

• Determine the voltage levels of the system

• Select a transformer with a kVA rating and voltage levels that meet the requirements

• Consider factors such as efficiency, temperature rise, and impedance when selecting a transformer

M stands for mix design in M-20 concrete, indicating the compressive strength of the concrete mix.

• M-20 concrete is a mix design where 'M' represents the compressive strength of the concrete after 28 days of curing.

• The number '20' in M-20 concrete indicates the characteristic compressive strength of concrete in N/mm^2.

• Different grades of concrete have different compressive strength requirements, with M-20 being a common grade for general construction purposes.

Voltage drop is the reduction in voltage that occurs as electricity flows through a circuit due to resistance.

• Calculate the total resistance of the circuit

• Determine the current flowing through the circuit

• Multiply the current by the total resistance to get the voltage drop

• Use Ohm's Law (V=IR) to calculate voltage drop across individual components

• Consider using voltage drop calculators or tables for more complex circuits

Choose cable based on voltage, current, temperature, environment and application.

• Determine voltage and current requirements

• Consider temperature range and environmental conditions

• Choose cable type based on application (e.g. power, data, signal)

• Select appropriate conductor material (e.g. copper, aluminum)

• Check for any regulatory requirements or standards (e.g. NEC, UL)

• Examples: THHN for indoor power, Cat6 for data transmission, coaxial for RF signals

I am familiar with a variety of landscape materials such as stone, wood, plants, and water features.

• Stone - used for pathways, walls, and decorative elements

• Wood - commonly used for decks, fences, and pergolas

• Plants - including trees, shrubs, flowers, and grasses for landscaping

• Water features - such as ponds, fountains, and streams

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

Unit weight of steel bars varies based on their diameter and length.

• The weight of steel bars is measured in kilograms per meter (kg/m).

• The unit weight of steel bars ranges from 0.785 kg/m to 6.16 kg/m depending on their diameter.

• For example, a 10mm diameter steel bar weighs around 0.62 kg/m while a 32mm diameter steel bar weighs around 6.16 kg/m.

IEC codes and standards are international standards for electrical engineering.

• IEC stands for International Electrotechnical Commission

• IEC codes and standards ensure safety, reliability, and compatibility of electrical systems and equipment

• Examples of IEC standards include IEC 60601 for medical electrical equipment and IEC 61850 for communication networks and systems in substations

Quality control is crucial during RCC work and finishing work to ensure structural integrity and aesthetic appeal.

• Ensure proper mix design and curing of concrete during RCC work

• Check for proper reinforcement placement and alignment

• Monitor surface preparation and application of finishing materials

• Inspect for cracks, voids, and other defects

• Conduct regular quality checks and testing

• Ensure compliance with relevant codes and standards

• Train and educate workers on quality control m...read more

DG sizing depends on load demand, backup requirements, fuel availability, and budget.

• Calculate the total load demand of the system

• Determine the backup requirements and duration

• Consider the availability of fuel and its cost

• Evaluate the budget for the project

• Select a DG with appropriate capacity and efficiency

• Perform a feasibility study and cost-benefit analysis

• Consider environmental regulations and noise restrictions

• Ensure proper installation and maintenance

Water is added to concrete mixer to make the mixture more workable and to achieve the desired consistency.

• Water is added to hydrate the cement and activate the chemical reaction that causes it to harden

• The amount of water added affects the strength and durability of the concrete

• Too much water can weaken the concrete and cause cracking

• The water should be added gradually and mixed thoroughly to ensure even distribution

• Other additives such as admixtures may also be added to impr...read more

I require more experience in project management and team leadership.

• Project management skills

• Leadership and team management

• Effective communication

• Time management

• Budgeting and cost control

I tend to get too focused on details and may overlook the bigger picture.

• I have a tendency to get bogged down in technical details and may need to remind myself to step back and look at the overall project goals.

• I sometimes struggle with presenting technical information in a way that is easily understandable to non-technical stakeholders.

• I am always working to improve my knowledge and skills in areas where I may be weaker, such as signal processing or acoustical modeling.

Maintaining ISO certification requires continuous improvement and adherence to standards.

• Regular internal audits to identify areas for improvement

• Documented procedures and processes to ensure consistency

• Training and education for employees on ISO standards

• External audits to verify compliance

• Corrective actions taken to address non-conformities

• Management review to ensure effectiveness of the quality management system

CODAL provisions for concrete refer to the guidelines and regulations set by relevant authorities, while commands of software are the specific instructions or functions within a software program.

• CODAL provisions for concrete include specifications for mix design, strength requirements, and durability standards.

• Commands of software for site engineers may include functions for structural analysis, quantity takeoff, and project scheduling.

• Examples of CODAL provisions for concret...read more

The major bridge I executed had a continuous span arrangement with multiple spans.

• The major bridge had a continuous span arrangement with multiple spans

• The span arrangement was designed to accommodate the required length and load capacity

• The spans were connected seamlessly to ensure structural integrity and stability

Quality training can be imparted through various methods and techniques.

• Identify the training needs of employees

• Develop a comprehensive training program

• Use interactive and engaging training methods

• Provide hands-on training and practical examples

• Evaluate the effectiveness of the training program

• Continuously improve the training program based on feedback

• Encourage employees to apply the training in their work

• Provide ongoing support and resources for employees

The boom length of a tower crane varies depending on the model and manufacturer.

• Tower crane boom length can range from 30 meters to over 100 meters.

• The boom length determines the maximum height and reach of the crane.

• Factors such as weight capacity and wind speed also affect the boom length.

• Some popular tower crane models and their boom lengths include: Potain MDT 98 (55 meters), Liebherr 630 EC-H 40 (40 meters), and Terex CTT 472-20 (80 meters).

Digital marketing involves promoting products or services through online channels to reach a target audience.

• Utilizes various online platforms such as social media, search engines, email, and websites

• Involves strategies like SEO, SEM, content marketing, social media marketing, email marketing, and influencer marketing

• Focuses on reaching and engaging with potential customers online to drive conversions and sales

• Allows for targeted advertising based on demographics, interests, ...read more

My minimum expectation is to be given clear goals and expectations, adequate resources and support, and opportunities for growth and development.

• Clear goals and expectations set by leadership

• Adequate resources and support provided by the organization

• Opportunities for growth and development within the role

• Regular feedback and communication from supervisors

• A positive and inclusive work environment

Concrete strength depends on various factors.

• Water-cement ratio

• Type and quality of cement

• Aggregate size and shape

• Curing conditions

• Mix design

• Age of concrete

• Temperature and humidity

• Presence of admixtures

I have executed multiple projects in the last few years.

• Developed a new website for a client using HTML, CSS, and JavaScript.

• Created a mobile application for a startup using React Native.

• Managed a team of developers to build a custom CRM system for a large corporation.

• Implemented a data analytics solution for a healthcare organization using Python and SQL.

• Designed and executed a social media marketing campaign for a non-profit organization.

I have experience working with minor irrigation systems, including design, installation, and maintenance.

• Designed irrigation systems for small-scale agricultural projects

• Installed drip irrigation systems for gardens and landscaping

• Performed routine maintenance on irrigation pumps and pipes

• Troubleshooted and repaired irrigation system malfunctions

OpenRoads is a civil engineering software used for designing and analyzing transportation infrastructure.

• OpenRoads allows for 3D modeling of roads, bridges, and highways.

• It includes tools for surveying, terrain modeling, and drainage design.

• The software also has features for analyzing traffic flow and safety.

• OpenRoads can integrate with other civil engineering software such as MicroStation and InRoads.

• The working procedure involves creating a digital model of the transportati...read more

Safety first refers to prioritizing the well-being and protection of individuals in any situation.

• Safety should always be the top priority in any work environment or activity.

• It involves identifying and mitigating potential hazards to prevent accidents or injuries.

• Safety protocols and procedures should be followed consistently to ensure a safe environment for everyone.

• Examples include wearing personal protective equipment, conducting safety inspections, and providing safety t...read more

I am available for the project and can commit to the required time and effort.

• I am currently not committed to any other projects

• I have the necessary skills and experience to contribute effectively

• I am willing to adjust my schedule if needed for the project

• I am excited about the opportunity to work on this project

Design standards for sewerage system

• Design standards vary based on location and regulations

• Consideration should be given to factors such as population density, topography, and soil type

• Standards may include minimum pipe diameter, slope, and depth

• Examples of design standards include ASCE 15 and EPA guidelines

I have extensive experience in conducting social impact assessments for various projects.

• Conducted social impact assessments for infrastructure projects to analyze potential effects on local communities

• Utilized stakeholder engagement techniques to gather feedback and input from community members

• Analyzed data and prepared reports outlining potential social impacts and proposed mitigation strategies

• Worked closely with project teams to incorporate social impact considerations in...read more

Components of bridges include abutments, piers, deck, superstructure, substructure, and foundation.

• Abutments provide support at the ends of a bridge.

• Piers support the bridge deck in the middle.

• Deck is the surface that vehicles travel on.

• Superstructure includes beams, girders, and trusses.

• Substructure supports the superstructure and transfers loads to the foundation.

• Foundation transfers the bridge loads to the ground.

• Examples: Suspension bridge - cables, arch bridge - arches, ...read more

Market research approach involves gathering and analyzing data to understand the target market and competition.

• Identify research objectives and questions

• Determine research methodology (qualitative or quantitative)

• Collect data through surveys, interviews, focus groups, etc.

• Analyze data to draw insights and conclusions

• Use findings to inform business decisions and strategies