Narula Infrastructure Assistant Technician Interview Questions and Answers

A Bending Moment diagram visually represents the internal moments along a beam under various loads.

• Identify the beam type (simply supported, cantilever, etc.).

• Determine the support reactions using equilibrium equations.

• Calculate the bending moments at key points (supports, load applications).

• Plot the bending moment values along the length of the beam.

• Use positive values for sagging moments and negative for hogging mome...read more

Provisions checked for designing a beam/column according to IS Codes

• Cross-sectional dimensions

• Minimum reinforcement

• Maximum spacing of bars

• Clear cover to reinforcement

• Grade of concrete and steel

• Load-bearing capacity

• Bending moment and shear force

• Deflection limits

IS 456 and IS 800 are codes and provisions related to concrete and steel design respectively.

• IS 456 provides guidelines for the design and construction of reinforced concrete structures.

• IS 800 provides guidelines for the design and construction of steel structures.

• IS 456 covers topics such as materials, loads, design of members, and detailing.

• IS 800 covers topics such as material properties, loads, design of members, a...read more

Permissible stresses in concrete and steel as per IS codes.

• Permissible stress in concrete is 0.67 times the characteristic strength of concrete.

• Permissible stress in steel is 0.2 times the yield strength of steel.

• For example, if the characteristic strength of concrete is 30 N/mm², then the permissible stress in concrete would be 0.67 x 30 = 20 N/mm².

• Similarly, if the yield strength of steel is 415 N/mm², then the permi...read more

Permissible values for deflection in a structure according to IS provisions.

• The maximum permissible deflection for a structure is L/180 for live load and L/325 for total load.

• L is the span of the beam or slab in meters.

• The deflection limit is to ensure the safety and comfort of the occupants of the structure.

• The deflection limit varies for different types of structures and materials used.

• For example, the deflection lim...read more

Planning a house involves several steps from conceptualization to construction.

• Understand the client's requirements and budget

• Create a design plan and get it approved by the client

• Obtain necessary permits and approvals from local authorities

• Prepare a detailed construction plan and schedule

• Select and hire contractors and subcontractors

• Supervise the construction process and ensure quality control

• Ensure compliance with bu...read more

BTP project is a railway project aimed at improving connectivity and reducing travel time.

• BTP stands for Bangalore-Mysore Infrastructure Corridor

• It is a 111 km long 6-lane expressway connecting Bangalore and Mysore

• The project also includes the construction of a high-speed rail link between the two cities

• The main objective is to reduce travel time and improve connectivity between the two cities

• The project is expected to...read more

Channel flow is open flow with free surface while pipe flow is confined flow with closed surface.

• Channel flow occurs in open channels like rivers, canals, etc. while pipe flow occurs in closed conduits like pipes, tubes, etc.

• In channel flow, the fluid is exposed to the atmosphere and the surface is not fixed while in pipe flow, the fluid is confined and the surface is fixed.

• Channel flow is affected by gravity and surfa...read more

Gutter is an example of open channel flow.

• Open channel flow is a flow of fluid in a channel with a free surface.

• Gutter is an open channel that carries rainwater from roofs to the ground.

• Closed pipe flow is a flow of fluid in a pipe with a closed surface.

• Examples of closed pipe flow include water supply pipes and sewage pipes.

A distribution system in a town can be explained through a drawing.

• The distribution system starts at the water treatment plant

• Water is transported through pipes to storage tanks

• From storage tanks, water is distributed to homes and businesses

• The distribution system also includes valves, pumps, and meters

• The system may also include fire hydrants and water mains

• The drawing should show the flow of water and the location of...read more

I am a dedicated engineer with a passion for problem-solving and a strong background in project management and technical skills.

• Graduated with a degree in Engineering from XYZ University, where I developed a solid foundation in engineering principles.

• Completed an internship at ABC Company, where I contributed to a project that improved efficiency by 20%.

• Skilled in software tools like AutoCAD and MATLAB, which I used to...read more

I prefer TCE over other firms because of their strong reputation and commitment to innovation.

• TCE has a proven track record of delivering high-quality engineering solutions.

• They prioritize innovation and are always looking for new and better ways to solve problems.

• TCE values collaboration and teamwork, which creates a positive and productive work environment.

• Their focus on sustainability aligns with my personal values ...read more

I was actively involved in the Counseling service and E-Club during my college years.

• In the Counseling service, I provided emotional support and guidance to students who were struggling with personal or academic issues.

• As a member of the E-Club, I organized and participated in various events related to technology and entrepreneurship.

• I also helped to promote the club through social media and other channels.

• Through thes...read more

I come from a supportive family that values education and hard work, which has greatly influenced my career aspirations.

• My father is an engineer, which inspired my interest in the field.

• My mother is a teacher, emphasizing the importance of education in our household.

• I have a younger sister who is currently pursuing her studies in environmental science.

• Family gatherings often involve discussions about our respective fie...read more

TCE stands for Trichloroethylene, a colorless liquid used as a solvent in various industries.

• TCE is commonly used in dry cleaning, metal degreasing, and as a refrigerant.

• It is a potent carcinogen and can cause serious health issues if not handled properly.

• TCE exposure can lead to liver and kidney damage, respiratory issues, and neurological problems.

• The EPA has set a maximum contaminant level of 5 parts per billion for...read more

Single phase and three phase are two types of electrical power distribution systems.

• Single phase has one live conductor and one neutral conductor, while three phase has three live conductors and one neutral conductor.

• Single phase is commonly used in residential and small commercial applications, while three phase is used in industrial and large commercial applications.

• Single phase power supply is suitable for low power...read more

R, Y, B phases are the three phases of AC power supply. They differ in their phase angle and voltage level.

• R phase has a phase angle of 0 degrees and is usually connected to the red wire.

• Y phase has a phase angle of 120 degrees and is usually connected to the yellow wire.

• B phase has a phase angle of 240 degrees and is usually connected to the blue wire.

• The voltage level of each phase is the same, but they are out of ph...read more

In series, voltage adds up while current remains the same. In parallel, voltage remains the same while current adds up.

• In series, batteries are connected end-to-end, positive to negative. In parallel, batteries are connected positive to positive and negative to negative.

• Series connection increases voltage but does not increase current. Parallel connection increases current but does not increase voltage.

• Series connectio...read more

Periodic maintenance of batteries is crucial for their longevity and optimal performance.

• Check the battery terminals for corrosion and clean them if necessary

• Inspect the battery case for any cracks or damage

• Ensure that the battery is securely fastened in place

• Check the electrolyte level and top up with distilled water if required

• Test the battery voltage and recharge if necessary

A faulty battery can be identified by checking its voltage, capacity, and physical appearance.

• Check the voltage of the battery using a multimeter

• Test the capacity of the battery using a battery tester

• Inspect the physical appearance of the battery for any signs of damage or leakage

• Check the battery terminals for corrosion or loose connections

• Compare the battery's performance to its specifications