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

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

Problems at site and their management

• Delays in material delivery

• Equipment breakdowns

• Weather conditions

• Labor disputes

• Communication issues

• Proper planning and scheduling

• Effective communication with stakeholders

• Regular maintenance of equipment

• Contingency plans for unforeseen circumstances

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.

Quality of concrete is ensured through various tests and inspections at the construction site to meet project specifications.

• Conduct slump test to measure workability; a slump of 3-4 inches is typically acceptable for most applications.

• Perform compressive strength tests on concrete samples; cubes or cylinders are tested at 7 and 28 days to ensure they meet design strength.

• Check for proper mixing and curing; ensure that the concrete is mixed uniformly and cured adequately to p...read more

Rusting in RCC should be minimal; typically, less than 10% is acceptable to ensure structural integrity.

• Rusting of reinforcement bars (rebars) can lead to reduced strength and durability of RCC structures.

• Acceptable rust levels are generally below 10% of the total surface area of the rebar.

• For example, if a rebar has a surface area of 100 cm², rusting should not exceed 10 cm².

• Regular inspections and maintenance can help identify and mitigate rust issues early.

• Protective measu...read more

Creating a site plan involves strategic layout, resource allocation, and workflow optimization to enhance project efficiency.

• Conduct a site analysis to understand topography, access points, and existing structures.

• Define project objectives and scope to align the site plan with overall goals.

• Develop a layout that optimizes space for equipment, materials, and personnel, e.g., placing storage areas near work zones.

• Incorporate safety measures and compliance with regulations in th...read more

Implementing a safety plan involves assessment, training, communication, and monitoring to ensure a safe work environment.

• Conduct a thorough risk assessment to identify potential hazards on site.

• Develop a comprehensive safety plan that includes protocols for emergency situations.

• Provide safety training sessions for all employees to ensure understanding of safety procedures.

• Establish clear communication channels for reporting safety concerns or incidents.

• Regularly monitor and ...read more

Measuring rusting in steel involves visual inspection, weight loss methods, and electrochemical techniques.

• Visual Inspection: Assess the surface for rust presence and extent.

• Weight Loss Method: Measure the initial weight of a steel sample, expose it to corrosive conditions, then weigh it again to calculate rust loss.

• Electrochemical Techniques: Use methods like potentiodynamic polarization to evaluate corrosion rates.

• Surface Area Calculation: Determine the surface area of the ...read more

PLC and SCADA systems utilize various communication protocols for data exchange and control in industrial automation.

• Modbus: A widely used protocol for communication between PLCs and SCADA systems, often over serial lines.

• OPC (OLE for Process Control): Allows different systems to communicate and share data seamlessly, regardless of the manufacturer.

• Ethernet/IP: An industrial Ethernet protocol that enables real-time communication between devices in a network.

• Profibus: A fieldb...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

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

Control measures to reduce RCC concrete framed structure

• Proper design and detailing of reinforcement to ensure structural integrity

• Regular inspection and maintenance to identify and address any issues early

• Use of high-quality materials to prevent deterioration over time

• Implementing proper waterproofing measures to protect against water damage

• Ensuring proper curing of concrete to achieve desired strength and durability

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

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

Reading structural drawings involves understanding symbols, dimensions, and materials used in the design.

• Understand the scale of the drawing to ensure accurate measurements.

• Identify symbols and abbreviations used in the drawing key.

• Review the structural elements such as beams, columns, and foundations.

• Compare the structural drawing with working drawings to ensure consistency in design and construction.

• Pay attention to details such as material specifications and connections be...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.