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1000+ Project Engineer Interview Questions and Answers

Updated 26 Feb 2025

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Q51. Which programming language do you refer,

Ans.

I prefer Python for its simplicity and versatility.

  • Python is easy to learn and has a large community for support.

  • It can be used for a variety of tasks such as web development, data analysis, and automation.

  • Python also has many libraries and frameworks available for use.

  • Other languages I am familiar with include Java and C++.

Q52. Why shims are used and where 3 way shiming are used

Ans.

Shims are used to fill gaps and provide support. 3 way shimming is used in situations where three points of contact are needed.

  • Shims are thin pieces of material used to fill gaps and provide support.

  • They are commonly used in construction and engineering projects.

  • 3 way shimming involves using three shims to provide support at three points of contact.

  • This is often used in situations where a level surface is needed, such as in the installation of windows or doors.

  • Shims can be ma...read more

Q53. How to define the moment and shear connection s

Ans.

Moment and shear connections are used in structural engineering to transfer forces between members.

  • Moment connections transfer bending forces between beams and columns

  • Shear connections transfer shear forces between beams and columns

  • Moment connections can be achieved through welding, bolting, or a combination of both

  • Shear connections typically involve bolts or welds to transfer the shear forces

Q54. Reverse the each word of the string

Ans.

Reverse each word of a given string.

  • Split the string into words using space as a delimiter.

  • Reverse each word using built-in functions or loops.

  • Join the reversed words to form the final string.

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Q55. What is the mix ratio of M20 and M25 grade concrete?

Ans.

The mix ratio of M20 grade concrete is 1:1.5:3 and the mix ratio of M25 grade concrete is 1:1:2.

  • M20 grade concrete has a mix ratio of 1:1.5:3, which means 1 part cement, 1.5 parts sand, and 3 parts aggregate.

  • M25 grade concrete has a mix ratio of 1:1:2, which means 1 part cement, 1 part sand, and 2 parts aggregate.

Q56. What is the typical architecture of scada?

Ans.

SCADA typically consists of a hierarchical architecture with multiple levels of control and monitoring.

  • SCADA systems have a distributed architecture with multiple remote terminal units (RTUs) or programmable logic controllers (PLCs) connected to a central control system.

  • The central control system is responsible for collecting data from the RTUs/PLCs and displaying it to the operator.

  • SCADA systems may also include a supervisory computer, which provides a higher level of contro...read more

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Q57. What is time complexity of bubble sort? Can we do anything to reduce time in bubble sort?

Ans.

Bubble sort has a time complexity of O(n^2). It can be optimized by adding a flag to check if any swaps were made.

  • Bubble sort compares adjacent elements and swaps them if they are in the wrong order.

  • It repeats this process until the array is sorted.

  • Adding a flag to check if any swaps were made can reduce the time complexity to O(n) in the best case.

  • However, in the worst case, it still has a time complexity of O(n^2).

Q58. How you prepare programs for achieve targets in monthly basis?

Ans.

To prepare programs for achieving targets on a monthly basis, I follow a systematic approach that includes setting clear goals, creating a detailed plan, monitoring progress, and making necessary adjustments.

  • Set clear and specific targets for each month

  • Break down the targets into smaller tasks and create a detailed plan

  • Allocate resources and assign responsibilities to team members

  • Regularly monitor progress and track key performance indicators

  • Identify any deviations from the p...read more

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Q59. What are the access specifiers?

Ans.

Access specifiers are keywords in object-oriented programming languages that determine the visibility of class members.

  • Access specifiers are used to restrict access to class members.

  • There are three access specifiers: public, private, and protected.

  • Public members can be accessed from anywhere in the program.

  • Private members can only be accessed within the class.

  • Protected members can be accessed within the class and its subclasses.

  • Example: class MyClass { public: int x; private:...read more

Q60. Explain your cdac project in detail

Ans.

Developed a real-time traffic monitoring system using image processing techniques

  • Used OpenCV library for image processing

  • Implemented vehicle detection and tracking algorithm

  • Developed a web-based dashboard for real-time monitoring

  • Used Raspberry Pi for hardware implementation

  • Achieved an accuracy of 90% in vehicle detection

Q61. Which Type of different Materials use for Shuttering?

Ans.

Different materials used for shuttering include plywood, steel, aluminum, and plastic.

  • Plywood is commonly used for shuttering due to its strength and affordability.

  • Steel is used for heavy-duty applications where high strength and durability are required.

  • Aluminum is lightweight and corrosion-resistant, making it suitable for formwork in areas with high humidity or saltwater exposure.

  • Plastic shuttering is gaining popularity due to its ease of use, reusability, and ability to cr...read more

Q62. How much miller required for 500 cum concrete transporting

Ans.

The amount of miller required for transporting 500 cum concrete depends on various factors.

  • The type of miller being used

  • The distance the concrete needs to be transported

  • The size of the project

  • The time frame for completing the project

  • The availability of resources

  • The budget allocated for the project

Q63. What is array, diffrence between C and C++, what is object oriented programming, what projects who have worked on.

Ans.

Questions on arrays, C/C++, OOP, and past projects for Project Engineer role.

  • An array is a collection of similar data types stored in contiguous memory locations.

  • C is a procedural language while C++ is an object-oriented language.

  • Object-oriented programming is a programming paradigm that uses objects to represent and manipulate data.

  • Examples of past projects worked on should be provided.

Q64. Draw Mahanagar gas network diagram with pressure variation

Ans.

A Mahanagar gas network diagram with pressure variation needs to be drawn for the Project Engineer interview.

  • The diagram should include all the pipelines and their respective pressure levels.

  • The pressure variation should be shown using different colors or shades.

  • The diagram should also include the location of gas stations and regulators.

  • The pressure levels should be labeled and explained in a legend.

  • The diagram should be clear and easy to understand.

Q65. What is difference between tensioning and torquing ?

Ans.

Tensioning is the process of applying tension to a fastener or material, while torquing is the process of applying torque or rotational force.

  • Tensioning involves stretching or pulling a material to create tension, while torquing involves applying rotational force to tighten or loosen a fastener.

  • Tensioning is commonly used in applications such as tightening cables, belts, or chains, while torquing is used in fastening bolts, screws, or nuts.

  • Tensioning is measured in units of f...read more

Q66. what are co-generation plants? How do you link co-generation plants with solar Pv plants?

Ans.

Co-generation plants produce both electricity and heat. They can be linked with solar PV plants to increase energy efficiency.

  • Co-generation plants use a single fuel source to produce both electricity and heat

  • Solar PV plants generate electricity from sunlight

  • Linking co-generation plants with solar PV plants can increase overall energy efficiency

  • Excess heat from co-generation plants can be used to power solar thermal systems

  • Combined heat and power (CHP) systems are a type of co...read more

Q67. Safety measures to be taken during project execution on site to reduce the incidents.

Ans.

Safety measures on site to reduce incidents

  • Conduct regular safety training for all workers

  • Ensure all workers wear appropriate personal protective equipment (PPE)

  • Implement a hazard communication program to inform workers of potential hazards

  • Regularly inspect and maintain equipment to ensure it is in good working condition

  • Establish emergency response procedures and conduct drills

  • Provide adequate lighting and signage to ensure safe movement around the site

  • Ensure proper storage a...read more

Q68. What are the main points will you notice during gypsum partition work?

Ans.

Main points to notice during gypsum partition work

  • Ensure proper alignment and leveling of the partition

  • Check for any cracks or damages in the gypsum boards

  • Ensure proper installation of electrical and plumbing fixtures

  • Check for proper insulation and soundproofing

  • Ensure proper finishing of joints and corners

  • Check for any gaps or spaces between the partition and the ceiling or floor

  • Ensure proper ventilation and air circulation

  • Check for any fire safety requirements

  • Ensure complian...read more

Q69. Do you know about PLC ladder designing and RLC circuit designing?

Ans.

Yes, I have knowledge of PLC ladder designing and RLC circuit designing.

  • I have experience in designing and programming PLC ladder logic for industrial automation systems.

  • I am familiar with RLC circuit analysis and design, including calculating impedance and resonance frequencies.

  • I have worked with various PLC brands such as Allen Bradley, Siemens, and Mitsubishi.

  • I have also designed and simulated RLC circuits using software tools like LTSpice and Multisim.

Q70. What are the exceptions you have faced in selenium ?

Ans.

Exceptions faced in Selenium

  • ElementNotVisibleException

  • StaleElementReferenceException

  • NoSuchElementException

  • TimeoutException

  • UnhandledAlertException

Q71. What is the the difference between and air cooled system and water cooled system?

Ans.

Air cooled systems use air to dissipate heat while water cooled systems use water to dissipate heat.

  • Air cooled systems are typically smaller and less expensive than water cooled systems.

  • Water cooled systems are more efficient at dissipating heat than air cooled systems.

  • Air cooled systems are often used in smaller applications such as personal computers and small electronics.

  • Water cooled systems are commonly used in larger applications such as industrial machinery and power pl...read more

Q72. Write the code:- count number of characters and alphabets in string.

Ans.

Code to count number of characters and alphabets in a string.

  • Use the len() function to count the total number of characters in the string.

  • Use isalpha() function to check if a character is an alphabet or not.

  • Loop through each character in the string and increment the count of alphabets if it is an alphabet.

  • Return the total count of characters and alphabets in the string.

Q73. Bill of material of 1 KM 11 KV line

Ans.

The bill of material for a 1 KM 11 KV line includes various components such as conductors, insulators, transformers, and poles.

  • Conductors: Copper or aluminum cables used to transmit electricity.

  • Insulators: Materials like porcelain or polymer used to support and isolate the conductors.

  • Transformers: Devices used to step up or step down the voltage.

  • Poles: Structures to support the conductors and maintain their position.

  • Other components may include connectors, clamps, lightning a...read more

Q74. Tell me about the parts of control valve?

Ans.

Control valve consists of parts like valve body, actuator, positioner, and trim.

  • Valve body: main housing that contains the flow passage and seat

  • Actuator: device that adjusts the position of the valve plug

  • Positioner: controls the valve position based on input signals

  • Trim: internal components that control flow through the valve

Q75. What is selenium ? What is locater? What is Webdriver? methods of Webelement? What is action class?

Ans.

Selenium is a tool used for automating web browsers. Locator is used to locate elements on a web page. Webdriver is a tool used for controlling a web browser. Action class is used for performing advanced user interactions.

  • Selenium is a popular open-source tool for automating web browsers

  • Locator is used to identify elements on a web page using various attributes like ID, class, name, etc.

  • Webdriver is a tool used for controlling a web browser and interacting with web elements

  • We...read more

Q76. What is the working principle of mass flow meter?

Ans.

Mass flow meter works on the principle of measuring the mass flow rate of a fluid passing through a tube.

  • Mass flow meter measures the mass flow rate of a fluid, unlike traditional flow meters which measure volume flow rate.

  • It operates based on the principle of Coriolis effect, thermal dispersion, or pressure drop.

  • Coriolis mass flow meters use the twisting force generated by the fluid's mass flow to measure flow rate.

  • Thermal dispersion mass flow meters measure the heat transfe...read more

Q77. How much minimum bar in square and Round Column

Ans.

Minimum bar size for square and round columns in construction

  • Minimum bar size for square column is usually 4 bars of 12mm diameter

  • Minimum bar size for round column is usually 6 bars of 12mm diameter

  • The minimum bar size may vary based on the design requirements and load calculations

Q78. Can you explain real-life examples of where OOPs concepts?

Ans.

OOPs concepts are used in various real-life scenarios such as software development, game development, and automation.

  • In software development, OOPs concepts are used to create reusable code and improve code organization.

  • In game development, OOPs concepts are used to create game objects with properties and behaviors.

  • In automation, OOPs concepts are used to create modular and scalable code for testing and scripting.

Q79. What do you know about HVAC and central cooling system.

Ans.

HVAC stands for Heating, Ventilation, and Air Conditioning. It is a system used for maintaining indoor air quality and temperature.

  • HVAC systems are used in residential, commercial, and industrial buildings.

  • Central cooling systems are a type of HVAC system that use a central unit to cool multiple rooms or areas.

  • HVAC systems can use various types of equipment such as air conditioners, furnaces, boilers, and heat pumps.

  • Proper maintenance of HVAC systems is important for energy e...read more

Q80. What is Contactor in terms of electrical equipment?

Ans.

A contactor is an electrical device used for switching an electrical circuit on or off.

  • It is similar to a relay but can handle higher currents and voltages.

  • It consists of a coil, contacts, and an enclosure.

  • The coil generates a magnetic field that pulls the contacts together to close the circuit.

  • Contactors are commonly used in HVAC systems, industrial machinery, and electric vehicles.

  • They are also used in motor control circuits to start and stop motors.

  • Contactors can be contro...read more

Q81. What is material reconciliation, Escalation Bill?

Ans.

Material reconciliation is the process of comparing the actual materials used in a project with the planned quantities to identify any discrepancies.

  • Material reconciliation involves comparing the actual quantities of materials used in a project with the quantities that were planned or estimated.

  • It helps in identifying any discrepancies or variations between the planned and actual materials, which can be useful for cost control and project management.

  • The process typically invo...read more

Q82. Write a program for the Fibonacci series up to nth term.

Ans.

Program to generate Fibonacci series up to nth term.

  • Declare variables for first and second terms of the series

  • Use a loop to generate the series up to nth term

  • Print the series as output

Q83. Difference between singly linked list and doubly linked list , OOP concepts , Prime number logic ,Armstrong number logic

Ans.

Explaining the difference between singly and doubly linked lists and discussing OOP concepts, prime number and Armstrong number logic.

  • Singly linked list has one pointer to the next node while doubly linked list has two pointers to the next and previous nodes.

  • OOP concepts include encapsulation, inheritance, and polymorphism.

  • Prime number logic involves checking if a number is only divisible by 1 and itself.

  • Armstrong number logic involves checking if a number is equal to the sum...read more

Q84. How is a transformer's rated capacity expressed, and what is the reason for this expression?

Ans.

Transformer's rated capacity is expressed in kVA and is based on the maximum amount of power it can handle.

  • Transformer's rated capacity is expressed in kilovolt-amperes (kVA).

  • The reason for expressing rated capacity in kVA is to account for both the voltage and current handling capabilities of the transformer.

  • kVA takes into consideration the power factor of the load, ensuring that the transformer can handle the maximum power demand.

  • For example, a transformer with a rated capa...read more

Q85. What is the productivity of manpower?

Ans.

Productivity of manpower refers to the amount of work done by a person in a given time period.

  • Productivity can be measured in terms of output per hour, day, or week.

  • Factors that affect productivity include skill level, motivation, and working conditions.

  • Improving productivity can lead to increased efficiency and profitability.

  • For example, a construction worker may be able to lay 100 bricks per hour, while a software developer may be able to write 100 lines of code per day.

Q86. What experience do you have working with technologies like Javascript , Html , CSS , NodeJs ?

Ans.

I have extensive experience working with Javascript, HTML, CSS, and NodeJs in various projects.

  • Developed interactive web applications using Javascript, HTML, and CSS

  • Utilized NodeJs for server-side development and building APIs

  • Implemented responsive design techniques with CSS frameworks like Bootstrap

  • Integrated front-end and back-end technologies to create seamless user experiences

Q87. How convolution layer work, what is padding, what is recurrent neural network, what is gradient dissent algorithm, etc.

Ans.

Convolution layers are used in neural networks for feature extraction, padding is adding zeros to input data, RNNs are used for sequential data, gradient descent is an optimization algorithm.

  • Convolution layers in neural networks extract features by applying filters to input data.

  • Padding is adding zeros around the input data to preserve spatial dimensions.

  • Recurrent Neural Networks (RNNs) are designed to work with sequential data, where the output depends on previous inputs.

  • Gra...read more

Q88. 1. What steel test are done at construction site...?

Ans.

Steel tests commonly done at construction sites include tensile strength test, bend test, impact test, hardness test, and chemical composition analysis.

  • Tensile strength test is conducted to determine the maximum stress a material can withstand before breaking.

  • Bend test is performed to assess the ductility and flexibility of the steel.

  • Impact test is carried out to evaluate the toughness of the steel.

  • Hardness test is done to measure the resistance of the steel to deformation.

  • Ch...read more

Q89. What is used to design a AND gate from a multiplexer

Ans.

A multiplexer can be used to design an AND gate by selecting the inputs and using the output as the AND gate output.

  • Select two inputs of the multiplexer and connect them to the AND gate inputs.

  • Connect the output of the multiplexer to the output of the AND gate.

  • Set the select input of the multiplexer to 1 to enable the AND gate functionality.

  • The truth table of the AND gate can be obtained from the truth table of the multiplexer.

  • The logic equation of the AND gate can be derived...read more

Q90. return index of the elements whose sum is equal to given sum in an array

Ans.

Return index of elements whose sum is equal to given sum in an array.

  • Iterate through the array and check if the sum of any two elements is equal to the given sum.

  • If yes, return the indices of those two elements.

  • If no such pair exists, return an empty array.

Q91. What is Earthing and how much distance between two earth pit

Ans.

Earthing is the process of connecting electrical equipment to the earth to prevent electric shock and damage to equipment.

  • Earthing provides a low resistance path for the fault current to flow to the ground.

  • The distance between two earth pits should be less than 10 meters.

  • The depth of the earth pit should be at least 3 meters.

  • Earthing is important for safety in electrical systems.

  • Earthing also helps in reducing electromagnetic interference.

Q92. Do we have any prior experience in Designing CAD software

Ans.

Yes, we have prior experience in designing CAD software.

  • We have successfully designed and implemented CAD software for a previous project.

  • Our team members have expertise in using various CAD software tools such as AutoCAD, SolidWorks, and CATIA.

  • We have received positive feedback from clients on the CAD software we have developed.

Q93. Tell me about your college? What are the advantages of autonomous College?

Ans.

Autonomous colleges are independent and have more academic freedom.

  • Autonomous colleges have the freedom to design their own courses and syllabus.

  • They can also conduct their own exams and evaluate students.

  • This allows for more flexibility and innovation in teaching methods.

  • Autonomous colleges are also able to respond more quickly to changes in the industry and job market.

  • Examples of autonomous colleges include Indian Institute of Technology (IIT) and Indian Institute of Manage...read more

Q94. Different between black box texting and white box testing?

Ans.

Black box testing is testing without knowledge of the internal workings of the system, while white box testing is testing with knowledge of the internal workings of the system.

  • Black box testing focuses on the functionality of the system.

  • White box testing focuses on the internal structure of the system.

  • Black box testing is typically performed by end-users or testers who do not have knowledge of the internal workings of the system.

  • White box testing is typically performed by dev...read more

Q95. Explain project which are done at college and company

Ans.

Projects at college and company

  • At college, I worked on a team project to design and build a solar-powered car

  • At the company, I led a project to implement a new inventory management system

  • College projects focused on learning and experimentation, while company projects were more practical and goal-oriented

  • Both types of projects required effective communication, collaboration, and problem-solving skills

Q96. How much part of flashing and trim is used in overlapping?

Ans.

Flashing and trim are essential components in overlapping to ensure proper waterproofing and protection against elements.

  • Flashing and trim are crucial for preventing water infiltration at joints and intersections.

  • Proper overlapping of flashing and trim is necessary to create a watertight seal.

  • Examples of overlapping include step flashing at roof-wall intersections and counter flashing over base flashing.

  • Incorrect overlapping can lead to leaks and water damage.

Q97. How you raise Escalation Bill and what are the perameter?

Ans.

To raise an Escalation Bill as a Project Engineer, you need to follow certain parameters.

  • Identify the need for escalation based on project issues or delays

  • Gather all relevant information and documentation related to the escalation

  • Prepare a detailed report outlining the problem, its impact, and potential solutions

  • Present the escalation bill to the appropriate stakeholders or management

  • Follow up on the escalation and ensure timely resolution

Q98. In Electrical field..it's necessary for earthing and it's value below 2 ohm for testing time and distance minimum two earth pit approx 1 meter

Ans.

Earthing is necessary in electrical field with value below 2 ohm for testing time and distance minimum two earth pit approx 1 meter.

  • Earthing is important for safety in electrical systems

  • The resistance of earthing should be below 2 ohm for effective grounding

  • Multiple earth pits should be installed at a distance of approximately 1 meter

  • Testing of earthing should be done regularly to ensure its effectiveness

Q99. What are different types of fittings are there in piping ?

Ans.

Different types of fittings in piping include elbows, tees, reducers, couplings, and flanges.

  • Elbows: Used to change the direction of piping

  • Tees: Used to create a branch in piping

  • Reducers: Used to connect pipes of different sizes

  • Couplings: Used to connect two pipes together

  • Flanges: Used to connect pipes, valves, and other equipment

Q100. What do you know about anchor bolt and how is it casted?

Ans.

Anchor bolts are used to secure objects or structures to concrete. They are typically casted by drilling a hole in the concrete and inserting the bolt with epoxy or grout.

  • Anchor bolts are commonly used in construction to secure structures like columns, beams, and equipment to concrete foundations.

  • The process of casting anchor bolts involves drilling a hole in the concrete, inserting the bolt, and then filling the hole with epoxy or grout to secure the bolt in place.

  • Anchor bol...read more

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