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Refrigeration is a process of removing heat from a substance or space to lower its temperature.
Refrigeration involves the transfer of heat from a low-temperature region to a high-temperature region.
It is used to preserve food, cool beverages, and create a comfortable environment in buildings.
Refrigeration systems typically consist of a compressor, condenser, expansion valve, and evaporator.
Examples of refrigeration inc...
Hollow shaft transmits more power than solid shaft.
Hollow shaft has a larger moment of inertia, allowing it to handle more torque.
Hollow shaft has a larger cross-sectional area, reducing stress and increasing power transmission capacity.
Hollow shaft can be designed with thicker walls, increasing its strength and power transmission capability.
Examples: Hollow steel shafts used in automotive drive shafts, hollow aluminum
Refrigeration gases are used in cooling systems to transfer heat and maintain low temperatures.
Common refrigeration gases include R-134a, R-410A, and R-22.
Refrigeration gases absorb heat from the surroundings and release it outside the system.
They undergo phase changes from gas to liquid and back to gas during the refrigeration cycle.
Refrigeration gases should have low boiling points and high heat transfer properties.
D...
I applied via Recruitment Consulltant and was interviewed in Oct 2023. There were 3 interview rounds.
To start erection after civil clearance, follow these steps:
Ensure all civil work is completed and cleared by the relevant authorities
Review the civil clearance documentation to understand the scope and requirements
Prepare the necessary equipment and materials for erection
Coordinate with the civil team to ensure a smooth transition from clearance to erection
Follow safety protocols and guidelines during the erection pro...
Various types of welding are used in structures, including arc welding, gas welding, and resistance welding.
Arc welding is commonly used in structural applications, such as shielded metal arc welding (SMAW) and gas metal arc welding (GMAW).
Gas welding, such as oxy-fuel welding, can be used for joining structural components.
Resistance welding methods like spot welding and seam welding are also employed in structural wel...
Various tools are used for bolt tightening, including torque wrenches, impact wrenches, and hydraulic tensioners.
Torque wrenches are commonly used for precise tightening of bolts to a specific torque value.
Impact wrenches are used for quick and efficient tightening of bolts, especially in large-scale applications.
Hydraulic tensioners are used for achieving high bolt preload by applying hydraulic pressure.
Other tools li...
The type of electrode used in structure welding depends on the specific requirements of the project.
Common types of electrodes used in structure welding include E6010, E7018, and E7014.
E6010 electrodes are used for deep penetration and are often used in pipeline welding.
E7018 electrodes are known for their high tensile strength and are commonly used in structural steel welding.
E7014 electrodes are versatile and can be ...
posted on 9 Jun 2024
Site management involves coordinating and overseeing all activities on a construction site to ensure projects are completed on time and within budget.
Developing a detailed project plan outlining tasks, timelines, and resources
Coordinating with subcontractors, suppliers, and other stakeholders
Ensuring compliance with safety regulations and quality standards
Managing project budget and expenses
Monitoring progress and addr...
Pipe joining can be done using various methods such as welding, soldering, or using mechanical fittings.
Welding: involves melting the edges of the pipes and joining them together.
Soldering: uses a filler material to join the pipes together.
Mechanical fittings: includes couplings, unions, and compression fittings to connect pipes without welding or soldering.
I applied via Recruitment Consulltant and was interviewed in May 2023. There were 2 interview rounds.
posted on 24 May 2024
posted on 28 Jun 2024
I applied via LinkedIn and was interviewed before Jun 2023. There was 1 interview round.
Fire NOC conditions refer to the requirements set by the fire department for ensuring fire safety in a building or establishment.
Fire NOC is required before starting any construction or occupancy of a building.
The building must comply with fire safety regulations such as having fire extinguishers, smoke detectors, and fire alarms installed.
Regular fire drills and training for occupants are necessary to ensure preparedn...
25 KV AC is more efficient for railways due to lower energy losses over long distances.
25 KV AC is more efficient for long distance transmission as it experiences lower energy losses compared to 750V DC.
25 KV AC allows for higher speeds and heavier loads on the railway system.
25 KV AC is the standard voltage used in many modern railway systems around the world, such as in Europe and parts of Asia.
750V DC may be more su...
Reverse a string without using string or inbuilt function
Create an array of characters to store the string
Use two pointers, one at the beginning and one at the end, swap characters until they meet
Repeat until all characters are swapped
I applied via Company Website and was interviewed before Aug 2023. There were 3 interview rounds.
The rpm and discharge of a pump are key parameters that determine its performance.
RPM (revolutions per minute) is the rotational speed of the pump's shaft.
Discharge refers to the volume of fluid that the pump can move in a given time.
The rpm and discharge of a pump are typically provided by the manufacturer in the pump's specifications.
For example, a centrifugal pump may have an rpm of 1750 and a discharge of 500 gallo
MS Pipeline is a code repository for Microsoft's Machine Learning framework.
MS Pipeline is a code repository used for developing and deploying machine learning models.
It provides tools and libraries for building end-to-end machine learning pipelines.
Examples of MS Pipeline components include data preprocessing, model training, and model deployment.
Seeking new challenges and opportunities for growth.
Desire for career advancement
Limited opportunities for growth in previous company
Seeking new challenges and experiences
I applied via Approached by Company and was interviewed in Jun 2022. There were 2 interview rounds.
I applied via Naukri.com and was interviewed before Oct 2022. There were 3 interview rounds.
PWHT requirement is as per code for stress relieving and improving mechanical properties of welded components.
PWHT stands for Post Weld Heat Treatment.
PWHT is required to relieve residual stresses in welded components.
PWHT helps improve mechanical properties such as toughness and ductility.
PWHT requirements are specified in various welding codes and standards such as ASME, AWS, and API.
Impact testing as per code is a method used to determine the toughness and resistance of materials to sudden loading.
Impact testing is conducted to assess the behavior of materials under high-stress conditions.
It helps in determining the ductility, brittleness, and toughness of materials.
Common methods of impact testing include Charpy and Izod tests.
Results of impact testing are compared to specified codes and standard...
Safety Officer
8
salaries
| ₹1 L/yr - ₹9.7 L/yr |
Mechanical Fitter
5
salaries
| ₹0.5 L/yr - ₹0.9 L/yr |
Fire & Safety Officer
5
salaries
| ₹0.7 L/yr - ₹5.1 L/yr |
Welder
4
salaries
| ₹5 L/yr - ₹7.2 L/yr |
Piping Supervisor
4
salaries
| ₹1 L/yr - ₹5.2 L/yr |
Larsen & Toubro Limited
TCS
Infosys
Wipro