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I applied via Referral and was interviewed in Nov 2023. There was 1 interview round.
Pipe wall thickness can be calculated using various methods based on the material, pressure, and temperature of the pipe.
Calculate using Barlow's formula: t = PD/(2S - 0.8P)
Consider factors like material properties, pressure, temperature, and safety factor
Consult relevant codes and standards for specific calculations
Use software tools like CAESAR II for complex piping systems
I applied via Campus Placement and was interviewed before Feb 2021. There were 3 interview rounds.
1st we got aptitude test which have 40 tech &20 non tech .....and total 500+ candidate was present.
I applied via Company Website and was interviewed in Oct 2020. There were 4 interview rounds.
Cutting 150 hill in 60 degree slope requires careful planning and execution.
Conduct a thorough survey of the area to determine the best approach
Use heavy machinery such as excavators and bulldozers to remove the hill
Ensure safety measures are in place to prevent accidents
Consider environmental impact and take necessary precautions
Consult with experts in the field for advice and guidance
Protection in 150m height can be achieved through various means.
Use of safety harness and fall protection equipment
Installation of guardrails and safety nets
Implementation of a comprehensive safety plan
Regular inspection and maintenance of equipment
Training and education of workers on safety procedures
The grade of bitumen used in hill areas depends on the temperature and altitude of the region.
The higher the altitude, the harder the bitumen used.
The temperature also plays a crucial role in determining the grade of bitumen.
For example, in colder regions, a harder grade of bitumen is used to prevent cracking and deformation.
In contrast, in warmer regions, a softer grade of bitumen is used to prevent rutting and deform
Concrete in minimum temperature requires proper mix design, curing, and protection from freezing.
Use a mix design with low water-cement ratio and proper amount of cement and admixtures.
Ensure proper curing by covering the concrete with blankets or insulating materials.
Protect the concrete from freezing by using heaters or insulating blankets.
Monitor the temperature of the concrete and the environment during and after p...
Cavity in tunnels can be protected by using various methods.
Waterproofing the tunnel lining
Using grouting techniques to fill the cavity
Installing drainage systems to prevent water accumulation
Regular inspections and maintenance
Using shotcrete to reinforce the tunnel lining
Applying rock bolts to stabilize the surrounding rock
Using steel ribs to support the tunnel lining
Cycle time in tunnel refers to the time taken to complete one cycle of a process or operation within the tunnel.
Cycle time can vary depending on the type of tunnel and the process being carried out.
For example, in a transportation tunnel, cycle time may refer to the time taken for a vehicle to enter and exit the tunnel.
In a manufacturing tunnel, cycle time may refer to the time taken to complete one production cycle.
Ef...
NATM stands for New Austrian Tunneling Method, a technique used in underground construction.
NATM is a tunneling method that involves excavating the tunnel while providing support to the surrounding rock mass.
It was developed in Austria in the 1950s and has since been used in various tunneling projects worldwide.
NATM involves the use of shotcrete, rock bolts, and steel ribs to support the tunnel walls and roof.
Examples ...
The frequency of drilling holes in the face depends on the specific project requirements and geological conditions.
The number of holes drilled in the face will vary depending on the project's needs and the geological conditions of the site.
Factors such as the type of rock, the size of the excavation, and the equipment being used will all influence the frequency of drilling.
It is important to carefully plan and execute ...
Proholes is not a known term in engineering. No data available.
Drain holes are necessary to prevent water accumulation and damage to structures or equipment.
Drain holes allow water to escape from areas where it can cause damage or corrosion.
They are commonly used in outdoor furniture, boats, and buildings to prevent water accumulation.
Drain holes can also be used in machinery to prevent damage from water or other liquids.
Proper placement and size of drain holes is important to ens
The amount of accelerator used in shotcrete depends on various factors.
The type of accelerator used affects the amount required.
The desired strength and setting time also play a role.
The ambient temperature and humidity can affect the amount needed.
Typically, 1-5% of the cement weight is used as accelerator.
The manufacturer's recommendations should be followed for best results.
I applied via Newspaper Ad and was interviewed in Mar 2023. There were 3 interview rounds.
Aptitude and technical
I applied via Naukri.com and was interviewed in Jan 2022. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
Code in python for class definition
Case study on business ethics
I applied via Campus Placement and was interviewed in Jun 2021. There were 5 interview rounds.
Distillation is a process of separating components of a mixture based on their boiling points.
It involves heating the mixture to vaporize the more volatile component
The vapor is then condensed and collected as a separate liquid
Commonly used in the production of alcoholic beverages, fuels, and chemicals
Distillation is a process used to separate components of a mixture based on their boiling points.
Used in petroleum refining to separate crude oil into different fractions
Used in the production of alcoholic beverages to separate ethanol from water
Used in the chemical industry to purify solvents and separate different chemicals
Can be used in the purification of water
Can be used in the separation of air into its component
Heat exchangers are devices used to transfer heat between two or more fluids.
Shell and tube heat exchangers
Plate heat exchangers
Double pipe heat exchangers
Spiral heat exchangers
Air-cooled heat exchangers
Bubble point and dew point are two important concepts in thermodynamics used to describe the behavior of a mixture of liquids and gases.
Bubble point is the temperature at which a liquid mixture starts to boil and form bubbles of vapor.
Dew point is the temperature at which a vapor mixture starts to condense and form droplets of liquid.
Bubble point and dew point are related to each other through the vapor-liquid equilibr...
Chemical and Biological Oxygen Demand are measures of water quality and indicate the amount of oxygen required to break down organic matter.
Chemical Oxygen Demand (COD) measures the amount of oxygen required to oxidize organic and inorganic matter in water.
Biological Oxygen Demand (BOD) measures the amount of oxygen required by microorganisms to break down organic matter in water.
COD is a faster test and measures both ...
posted on 14 Oct 2023
I applied via Walk-in and was interviewed in Sep 2023. There were 2 interview rounds.
P&ID of Pump System shows the piping, equipment, instrumentation, and control interlocks of the system.
Include pump symbol with arrows indicating flow direction
Label all equipment such as pumps, valves, tanks, etc.
Show instrumentation like pressure gauges, flow meters, etc.
Indicate control interlocks and safety features
Use standard symbols and colors as per industry guidelines
NPSH available stands for Net Positive Suction Head available, which is a measure of the absolute pressure at the suction port of a pump.
NPSH available is the total suction head in feet absolute at the suction nozzle of the pump.
It is important for ensuring that the pump does not cavitate, which can cause damage to the pump and decrease efficiency.
NPSH available is calculated by subtracting the vapor pressure of the li...
NPSH is calculated by subtracting the vapor pressure of the liquid from the total head of the pump.
NPSH = H - (Pv / rho * g)
H is the total head of the pump
Pv is the vapor pressure of the liquid
rho is the density of the liquid
g is the acceleration due to gravity
Ensure all units are consistent (e.g. meters, Pascal, kg/m^3, m/s^2)
A two-phase system P&ID shows the process flow of a system with two distinct phases.
Identify the two phases involved in the system (e.g. liquid-gas, solid-liquid).
Use different symbols to represent each phase on the P&ID.
Show the flow direction and connections between components in the system.
Include labels and legends to explain the components and their functions.
Ensure clarity and consistency in the representation of
posted on 17 Nov 2023
I applied via Approached by Company and was interviewed before Nov 2022. There were 4 interview rounds.
Logical question for clearing the round 1
Group discussion with batchmate
based on 1 interview
Interview experience
based on 5 reviews
Rating in categories
Senior Engineer
175
salaries
| ₹0 L/yr - ₹0 L/yr |
Process Engineer
50
salaries
| ₹0 L/yr - ₹0 L/yr |
Piping Designer
48
salaries
| ₹0 L/yr - ₹0 L/yr |
Piping Engineer
40
salaries
| ₹0 L/yr - ₹0 L/yr |
Instrument Engineer
38
salaries
| ₹0 L/yr - ₹0 L/yr |
Larsen & Toubro Limited
Tata Projects
Punj Lloyd
Thermax Limited