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I applied via Campus Placement and was interviewed in Feb 2024. There were 3 interview rounds.
Basics technical and basic aptitude
I applied via Campus Placement and was interviewed in Apr 2022. There was 1 interview round.
Heat transfer is the process of thermal energy moving from one object or substance to another.
Heat transfer occurs through three main mechanisms: conduction, convection, and radiation.
Conduction is the transfer of heat through direct contact between objects or substances.
Convection is the transfer of heat through the movement of fluids or gases.
Radiation is the transfer of heat through electromagnetic waves.
Examples of...
Mass transfer is the movement of substances from one place to another due to a concentration gradient.
Mass transfer involves the transfer of mass or substances between phases, such as from a liquid to a gas or from a solid to a liquid.
It occurs due to differences in concentration, temperature, pressure, or other driving forces.
Examples of mass transfer include evaporation, condensation, absorption, distillation, and ex...
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posted on 28 Mar 2021
I applied via Campus Placement and was interviewed in Sep 2020. There were 3 interview rounds.
Pumps: centrifugal, positive displacement, axial flow. Compressors: reciprocating, rotary, centrifugal.
Centrifugal pumps use a rotating impeller to move fluid.
Positive displacement pumps move fluid by trapping a fixed amount and forcing it through the discharge.
Axial flow pumps use propellers to move fluid.
Reciprocating compressors use pistons to compress gas.
Rotary compressors use rotating screws or vanes to compress ...
Characteristic curve of a pump shows the relationship between flow rate and head developed by the pump.
It is a graph plotted between flow rate and head developed by the pump.
It helps in determining the efficiency of the pump.
The curve is obtained by conducting experiments on the pump.
It is used to select the appropriate pump for a given application.
Shutoff pressure is the maximum pressure a pump can generate when it is not pumping any fluid.
Shutoff pressure is also known as deadhead pressure.
It is the pressure at which the pump can no longer move any fluid.
It is important to know the shutoff pressure to prevent damage to the pump and system.
For example, if the shutoff pressure of a pump is 100 psi, the pump will stop generating flow when the pressure in the syste
Types of columns and their selection criteria for engineering projects.
Types of columns include steel, concrete, timber, and composite columns.
Selection criteria depend on factors such as load capacity, material availability, and cost.
For example, steel columns are often used in high-rise buildings due to their strength and durability.
Concrete columns are preferred for their fire resistance and low maintenance.
Timber c...
Design of column, heat exchanger, and centrifugal pump involves various factors such as fluid properties, operating conditions, and material selection.
Column design involves determining the column diameter, height, and packing material based on the required separation efficiency and pressure drop.
Heat exchanger design involves selecting the appropriate type of exchanger, determining the heat transfer area, and selectin...
Joule-Thomson coefficient is the change in temperature of a gas when it is allowed to expand or contract without any work being done.
It is a measure of the rate of change of temperature with respect to pressure at constant enthalpy.
It is used in cryogenic technology to determine the cooling effect of a gas when it expands through a valve or porous plug.
The coefficient can be positive or negative depending on the gas an...
Refrigeration cycle is a thermodynamic process used in refrigerators and air conditioners to transfer heat from a low-temperature region to a high-temperature region.
The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The refrigerant is compressed by the compressor and then condensed in the condenser, releasing heat to the surroundings.
The high-pressure liquid refrigerant ...
posted on 23 Oct 2024
Online test on technical and aptitude with maths
posted on 25 Oct 2024
I applied via Campus Placement and was interviewed in Apr 2024. There were 2 interview rounds.
Domain based questions and basic aptitude question
CSTR and PFR are types of reactors, pumps are used to move fluids, heat exchangers transfer heat between fluids.
CSTR (Continuous Stirred Tank Reactor) has a constant volume and operates under steady-state conditions.
PFR (Plug Flow Reactor) has a varying volume and operates under unsteady-state conditions.
Pumps are mechanical devices used to move fluids from one place to another, like centrifugal pumps or positive displ...
Cracking is a process in which complex hydrocarbon molecules are broken down into simpler molecules.
Cracking is a refining process used to convert large hydrocarbon molecules into smaller, more valuable ones.
It is done by breaking the carbon-carbon bonds in the molecules.
Examples include catalytic cracking and steam cracking.
Reforming is a process used in the petroleum industry to convert low-octane naphtha into high-octane gasoline.
Reforming involves rearranging the molecular structure of hydrocarbons to increase their octane rating.
It is typically done using a catalyst at high temperatures and pressures.
The process can also produce hydrogen gas as a byproduct.
Reforming is an important step in the production of gasoline and other fuels in...
The range of a cooling tower refers to the maximum distance at which it can effectively cool air, while the approach is the temperature difference between the cooled water and the entering air.
Range of a cooling tower is typically around 5-20 degrees Fahrenheit
Approach of a cooling tower is usually around 8-15 degrees Fahrenheit
The range and approach of a cooling tower can vary based on factors such as design, size, an
posted on 30 Apr 2021
I applied via LinkedIn and was interviewed in Oct 2020. There were 4 interview rounds.
posted on 12 Dec 2022
BASIC QUESTIONS ON NUMERICALS
Thermodynamics is the study of heat and its relationship with other forms of energy.
It deals with the transfer of heat and work between systems
It involves the study of properties like temperature, pressure, and volume
It is used in designing engines, refrigeration systems, and power plants
The laws of thermodynamics govern the behavior of energy in all physical systems
Casting is a process of pouring molten metal into a mold to obtain a desired shape. Forging is a process of shaping metal by applying pressure and heat.
Casting involves pouring molten metal into a mold and allowing it to cool and solidify.
Forging involves shaping metal by applying pressure and heat, typically with a hammer or press.
Casting is used to create complex shapes with intricate details, while forging is used t...
posted on 19 Nov 2022
I applied via Campus Placement and was interviewed before Nov 2021. There were 3 interview rounds.
It was normal aptitude test which included 20 Questions of quantitative, reasoning type and remaining 80 questions were from technical background
posted on 9 Nov 2023
I was interviewed before Nov 2022.
Gk topics in a group of 10-12 members
posted on 11 Jul 2022
I applied via Campus Placement and was interviewed before Jul 2021. There were 3 interview rounds.
Basics of aptitude and Mechanical engineering
Pump characteristics curve shows the relationship between flow rate and head developed by the pump.
The curve is plotted between flow rate (x-axis) and head (y-axis).
It helps in selecting the right pump for a particular application.
The curve can be used to determine the operating point of the pump.
The shape of the curve depends on the type of pump and impeller design.
The curve can also show the efficiency and power cons...
Different types of steels have different percentages of carbon in them.
Low carbon steel (0.05-0.30%)
Medium carbon steel (0.3-0.6%)
High carbon steel (0.6-1.4%)
Ultra-high carbon steel (1.4-2.0%)
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