100+ Senior Project Engineer Interview Questions and Answers

Flexible pavements and rigid pavements are two types of roads.

• Flexible pavements have an embankment thickness of 3m and large size soil particles.

• Rigid pavements are made of concrete or asphalt and have a rigid structure.

• Flexible pavements are more suitable for areas with high traffic loads and varying soil conditions.

• Rigid pavements are more durable and require less maintenance compared to flexible pavements.

• Examples of flexible pavements include asphalt roads and bitumen ro...read more

Answering questions related to project delays, cost, luxury and affordable flats, and slab steel checking.

• Projects delay due to lack of skilled labor, slow approval processes, and unforeseen circumstances.

• Per square feet cost of flat varies depending on location, amenities, and quality of construction.

• Cost of delayed projects increases due to inflation, interest on loans, and additional expenses for labor and materials.

• Luxury flats offer high-end amenities and finishes, while...read more

The question pertains to the expected stress and restrained movement on an expansion joint with dowel bar load transfer.

• Total thickness of 300mm with M40 grade concrete and 31.5mm aggregate size.

• Texture strength of cement concrete is 4.5 Mpa and compressive strength after 28 days curing is 40Mpa.

• Expansion joint thickness is 25mm with dowel bar load transfer to one slab to another slab.

• Dowel bar is 32mm dia, 500mm length plain bar with 330mm dowel bar full of greasing and 130m...read more

The question is about the process of laying PQC mix on DLC surface using a pre-mix batching plant and electromagnetic paver sensor machine.

• Process of laying PQC mix on DLC surface

• Use of pre-mix batching plant and electromagnetic paver sensor machine

• Importance of proper compaction and blending

• Tolerance and effect on workability

Earth resistance of a distribution transformer and solution for high resistance

• The earth resistance of a distribution transformer should be less than 1 ohm

• High resistance can cause electric shock and damage to equipment

• Solution for high resistance includes improving grounding system, adding more grounding rods, and using chemical treatment

• Regular maintenance and testing of grounding system is important

EDR and antivirus differ in their approach to threat detection and response.

• EDR focuses on detecting and responding to advanced threats that may evade traditional antivirus solutions.

• EDR uses behavioral analysis and machine learning to identify suspicious activity and respond in real-time.

• Antivirus primarily relies on signature-based detection to identify known threats.

• EDR provides more detailed information about the nature and scope of an attack, allowing for more effective ...read more

The sizes of mould used to take samples of castable vary depending on the specific application and requirements.

• The size of the mould is determined by factors such as the desired sample volume and shape.

• Common sizes for moulds used in castable sampling range from small cylindrical moulds with diameters of a few centimeters to larger rectangular moulds with dimensions of several inches.

• For example, in the construction industry, small cylindrical moulds with a diameter of 5 cm ...read more

Answers to questions related to HVAC systems for Sr. Project Engineer interview.

• RH stands for Relative Humidity, which is the amount of water vapor present in air compared to the maximum amount that can be held at that temperature.

• U-trap in HVAC unit drain piping prevents sewer gases from entering the building and maintains proper drainage flow.

• Types of ducts include rectangular, round, oval, and spiral ducts.

• Duct gauges are selected based on the size of the duct and the pres...read more

JavaScript is a scripting language used for web development.

• JavaScript is used to add interactivity to web pages.

• It is a client-side language that runs on the user's browser.

• JavaScript is different from other programming languages as it is interpreted rather than compiled.

• It is also a loosely typed language, meaning variables can change data types.

• Examples of JavaScript frameworks include React, Angular, and Vue.

React Native is preferred for its cross-platform capabilities and ease of use. It differs from Angular in its component-based architecture.

• React Native allows for building mobile apps for both iOS and Android platforms using a single codebase.

• React Native uses a component-based architecture, making it easier to manage and reuse code.

• Angular is a full-fledged framework with a steeper learning curve compared to React Native.

• React Native has a larger community and more resources...read more

To manage a site suffering from payment, material, and labor issues, one must prioritize communication, budgeting, and problem-solving.

• Communicate with all parties involved to understand the root of the issues

• Create a budget plan and prioritize payments to ensure critical materials and labor are not affected

• Identify alternative sources for materials and labor if necessary

• Implement problem-solving strategies to address the issues and prevent future occurrences

• Maintain transpar...read more

The interviewer is asking about CBR valve and subgrade for road construction.

• CBR valve is generally between 3 to 15% for road construction

• Clay content should be less than 8%

• Sand content should be between 15% to 35%

• Gravel content should be greater than 25%

• CBR division of state highway develops CBR

• Subgrade and aggregate should meet the CBR valve requirements

A load balancer is a device or software that distributes incoming network traffic across multiple servers to prevent overload and ensure high availability.

• Load balancers can be hardware-based or software-based.

• They work by monitoring servers and distributing traffic based on factors like server health and current load.

• Types of load balancers include round-robin, least connections, IP hash, and more.

• Examples of load balancers include F5 BIG-IP, NGINX, and HAProxy.

The electrode used for welding of ss anchor is typically a stainless steel electrode.

• Stainless steel electrodes are commonly used for welding stainless steel anchors.

• The specific type of stainless steel electrode may vary depending on the grade of stainless steel being welded.

• Some commonly used stainless steel electrodes include E308, E309, and E316.

• The choice of electrode also depends on the welding process being used, such as shielded metal arc welding (SMAW) or gas tungste...read more

Manufacturing processes involve various steps to produce a final product. Defects can occur during any stage, but solutions can be implemented to minimize them.

• Manufacturing processes include casting, forging, machining, welding, etc.

• Defects can occur due to improper material selection, poor design, incorrect processing, etc.

• Solutions for defects include process optimization, quality control measures, and continuous improvement.

• Examples of defects and solutions include porosi...read more

Stylesheet.create is a function in React Native used to create a stylesheet object.

• It takes an object as an argument and returns a stylesheet object.

• The stylesheet object can be used to style components in React Native.

• It is a recommended way to define styles in React Native.

• Example: const styles = StyleSheet.create({ container: { flex: 1, backgroundColor: '#fff' } })

• The styles object can then be used in components like

Piling work involves driving piles into the ground to provide support for structures. There are several types of piling.

• Piling work is done to provide a stable foundation for structures such as buildings, bridges, and retaining walls.

• Piles can be made of various materials including concrete, steel, and timber.

• The most common types of piling are driven piles, drilled piles, and screw piles.

• Driven piles are hammered into the ground using a pile driver, while drilled piles are c...read more

Transformers and switch gears are essential components in electrical power systems.

• Transformers are used to step up or step down voltage levels in power systems.

• Switch gears are used to control and protect electrical equipment from overloads and short circuits.

• Transformers and switch gears work together to ensure efficient and safe power transmission and distribution.

• Examples of switch gears include circuit breakers, fuses, and disconnect switches.

• Transformers can be categori...read more

Redux is a state management library for JavaScript applications.

• Redux helps manage the state of an application in a predictable way.

• It uses a single source of truth, called the store, to hold the state of the application.

• Actions are dispatched to the store, which then updates the state using reducers.

• React components can subscribe to the store to receive updates to the state.

• Redux can be used with React using the react-redux library.

MS pipes are made of mild steel while DI pipes are made of ductile iron.

• MS pipes are cheaper than DI pipes.

• DI pipes are more durable and have higher tensile strength than MS pipes.

• DI pipes are used for water supply and sewage systems while MS pipes are used for gas and oil pipelines.

• DI pipes have a smoother inner surface which reduces friction and improves flow rate.

• MS pipes are prone to corrosion and require regular maintenance.

• DI pipes are more resistant to corrosion and ha...read more

The column size to be casted depends on the beam depth and structural requirements.

• Column size should be determined based on structural calculations and design requirements.

• Consider factors such as load-bearing capacity, building height, and seismic considerations.

• Example: If the beam depth is 500mm, the column size may need to be 400mm x 400mm.

• Consult structural engineers and refer to building codes for specific guidelines.

Yes, I have a B1 Visa with a validity of 5 years.

• Yes, I have a B1 Visa

• The validity of my B1 Visa is 5 years

I have extensive expertise in DFIG generators and their applications in various industries.

• I have worked on the design and development of DFIG generators for wind turbines.

• I have experience in troubleshooting and maintenance of DFIG generators.

• I am familiar with the control systems used in DFIG generators.

• I have knowledge of the latest advancements in DFIG generator technology.

• I have worked on projects involving the integration of DFIG generators with the power grid.

Engineering is crucial for designing, creating, and improving systems, structures, and products to meet societal needs.

• Engineering is important for solving complex problems and improving efficiency in various industries.

• Reviewing drawings involves checking for accuracy, completeness, and compliance with standards and specifications.

• Attention to detail is crucial in reviewing drawings to ensure that the final product meets requirements.

• Collaboration with other team members, su...read more

Refractory materials are classified into three types: acidic, basic, and neutral.

• Acidic refractories are made of silica and alumina, and are resistant to acidic materials.

• Basic refractories are made of magnesia, dolomite, or chrome-magnesia, and are resistant to basic materials.

• Neutral refractories are made of alumina, chromite, or carbon, and are resistant to both acidic and basic materials.

A machine bolt is a type of fastener used in secondary members for easy tightening.

• Machine bolts are typically threaded along the entire length of the shank.

• They are commonly used in applications where a nut is used to secure the bolt in place.

• Machine bolts come in various sizes and materials to suit different needs.

• Examples of machine bolts include hex bolts, carriage bolts, and elevator bolts.

Application methods of refractory include casting, gunning, ramming, and spraying.

• Casting: Pouring refractory material into a mold and allowing it to solidify.

• Gunning: Using a high-pressure gun to spray refractory material onto a surface.

• Ramming: Packing refractory material into a form using a ramming tool.

• Spraying: Applying refractory material using a spray gun or nozzle.

The layer of cube filling refers to the material or substance used to fill the empty space inside a cube.

• The layer of cube filling can vary depending on the purpose of the cube.

• Common cube fillings include foam, air, liquid, or solid materials.

• For example, in a foam cube, the filling layer would be foam.

• In a cube filled with water, the filling layer would be liquid.

• The choice of cube filling depends on factors such as insulation, weight, and structural integrity.

I prioritize clear communication and building strong relationships with customers and contractors.

• I actively listen to their concerns and needs

• I am transparent about project progress and any issues that arise

• I am respectful and professional in all interactions

• I work collaboratively to find solutions that meet everyone's needs

• I follow up promptly on any questions or concerns

• For example, on a recent project, I held weekly meetings with the contractor to discuss progress and any...read more

NRV is a non-return valve used to prevent backflow, while an isolation valve is used to completely stop the flow of fluid.

• NRV allows flow in one direction only, while isolation valve can be used to stop flow in both directions

• NRV is typically used to prevent backflow in pipelines, while isolation valve is used for maintenance or emergency shutdowns

• Examples: Check valve is a type of NRV, ball valve is a common type of isolation valve

The weight of 12 mm ply as per IS code varies depending on the type of wood used.

• The weight of 12 mm ply can range from 22 to 30 kg per sheet.

• The weight can also vary based on the density of the wood used.

• IS code may specify a range of acceptable weights for 12 mm ply.

Commissioned multiple plants including ABC and XYZ

• Commissioned ABC plant which produced XYZ product

• Managed the commissioning of XYZ plant which increased production by 50%

• Implemented new technology in DEF plant resulting in improved efficiency

Percivon Technologies is a leading technology company specializing in innovative solutions for the engineering industry.

• Percivon Technologies focuses on providing cutting-edge solutions for engineering projects

• They are known for their expertise in project management and engineering design

• The company has a strong track record of successful project implementations

• Percivon Technologies offers a wide range of services including consulting, design, and implementation

Handle with care and attention to detail.

• Listen actively to their concerns and needs.

• Communicate clearly and regularly.

• Provide frequent updates and progress reports.

• Be responsive and available for questions or issues.

• Ensure quality and accuracy in all deliverables.

• Establish trust and build a strong relationship.

• Address any issues or concerns promptly and professionally.

We can take out the solution by analyzing the problem, brainstorming solutions, and seeking help from colleagues or experts.

• Analyze the problem and identify the root cause of the issue

• Brainstorm potential solutions and evaluate their feasibility

• Seek help from colleagues or experts if necessary

• Consider alternative approaches or technologies

• Document the process and solution for future reference

Immutable class in Java can be created by declaring all fields as final and not providing any setters.

• Declare all fields as final

• Do not provide any setters

• Make the class final to prevent subclassing

• Ensure that mutable objects passed to the constructor are not modified

• Return a new instance of the class instead of modifying the existing one

SCADA stands for Supervisory Control and Data Acquisition. It is a system used to monitor and control industrial processes.

• SCADA systems collect data from sensors and other devices in real-time

• The data is then processed and displayed on a human-machine interface (HMI)

• Operators can use the HMI to monitor and control the process remotely

• SCADA systems are commonly used in industries such as oil and gas, water treatment, and manufacturing

• Examples of SCADA software include Ignitio...read more

Test strategy defines the overall approach for testing, while the test plan document outlines the specific details and activities of testing.

• Test strategy focuses on high-level goals and objectives of testing.

• Test plan document provides detailed information on test scope, test objectives, test schedule, test resources, etc.

• Test strategy is created early in the project lifecycle.

• Test plan document is created after the test strategy is defined.

• Test strategy guides the developme...read more

Breaking a singleton class means violating its design pattern by creating multiple instances.

• One way to break a singleton class is by using reflection to access its private constructor and creating a new instance.

• Another way is by using serialization and deserialization to create multiple instances.

• Subclassing the singleton class and creating instances of the subclass can also break the singleton pattern.

• Using multithreading and creating instances in different threads can als...read more

I will handle customers by actively listening to their concerns and providing timely and effective solutions.

• Actively listen to customer concerns

• Provide timely and effective solutions

• Maintain a positive and professional attitude

• Communicate clearly and effectively

• Follow up with customers to ensure satisfaction

Unitize refers to a fully assembled unit, while semi unitize refers to a partially assembled unit.

• Unitize means the components are fully assembled into a single unit.

• Semi unitize means the components are partially assembled but not fully integrated.

• Unitize is a complete assembly, while semi unitize may require further assembly or integration.

• Example: A unitized product could be a pre-built computer, while a semi unitized product could be a modular furniture set that requires ...read more

The main stages of project management include initiation, planning, execution, monitoring and control, and closure.

• Initiation: Defining the project's objectives, scope, and stakeholders.

• Planning: Developing a detailed project plan, including tasks, resources, and timelines.

• Execution: Carrying out the project plan and managing resources effectively.

• Monitoring and Control: Tracking project progress, identifying and resolving issues, and ensuring adherence to the plan.

• Closure: C...read more

Basic mechanical material properties include strength, stiffness, toughness, ductility, and hardness.

• Strength: ability to withstand stress without deformation or failure

• Stiffness: resistance to deformation under load

• Toughness: ability to absorb energy before fracture

• Ductility: ability to deform under tensile stress without fracture

• Hardness: resistance to indentation or scratching

I am responsible for overseeing the design, development, and implementation of projects at Securens Systems Pvt Ltd.

• Leading a team of engineers to ensure projects are completed on time and within budget

• Collaborating with clients to understand their requirements and provide customized solutions

• Implementing quality control measures to ensure the reliability and efficiency of the projects

• Troubleshooting any technical issues that may arise during the project implementation

BDD is a behavior-driven development approach that focuses on user stories. Locators are used to identify elements on a web page. Challenges include dynamic locators and synchronization issues.

• BDD is a methodology that involves writing user stories to drive development.

• Locators are used in test automation to identify elements on a web page, such as IDs, classes, XPath, etc.

• Challenges faced in using locators include dynamic elements that change frequently and synchronization i...read more

Wastage on site can be controlled by implementing proper planning, training, and monitoring.

• Conduct regular training sessions for workers on proper handling and usage of materials

• Implement a waste management plan to identify and segregate waste materials

• Monitor and track material usage to identify areas of improvement

• Use prefabricated materials to reduce on-site cutting and wastage

• Collaborate with suppliers to reduce excess material deliveries

• Implement a system for reusing an...read more

Yes, I am familiar with Cisco and Brocade switches.

• I have experience configuring and managing Cisco switches in previous projects.

• I am familiar with Brocade switches and their features such as Virtual Cluster Switching (VCS).

• I have worked on network designs that include both Cisco and Brocade switches.

• I am knowledgeable about the differences between Cisco and Brocade switch configurations.