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I applied via Naukri.com and was interviewed in Oct 2021. There were 2 interview rounds.
Calculating cooling tower TR, boiler efficiency, and types and capacity of chilling plant compressors.
Cooling tower TR can be calculated using the formula: TR = (500 x GPM x Delta T)/12000
Boiler efficiency can be calculated using the formula: Efficiency = (Output/Input) x 100
Types of compressors include reciprocating, rotary screw, centrifugal, and scroll.
Capacity of compressors is measured in tons of refrigeration (TR...
Answering questions related to Maintenance Engineer interview.
Types of boilers include fire tube, water tube, and electric boilers.
Chilling plant capacity can be calculated by multiplying the flow rate by the temperature difference.
Colour coding in industry is used to identify pipes, wires, and equipment based on their function or contents.
Schedule maintenance is planned maintenance that is performed at regular interva...
A mechanical seal is a device that helps to prevent leakage between two moving parts in a machine.
There are several types of mechanical seals, including pusher, non-pusher, cartridge, and split seals.
Pusher seals use springs to maintain contact between the seal faces.
Non-pusher seals use the pressure of the fluid being sealed to maintain contact between the seal faces.
Cartridge seals are pre-assembled and can be easily...
Pumps are devices used to move fluids from one place to another. There are different types of pumps based on their working principle.
Centrifugal pumps
Positive displacement pumps
Axial flow pumps
Mixed flow pumps
Jet pumps
The glass thickness of msgl reactor varies depending on the manufacturer and model.
The glass thickness can range from 5mm to 20mm.
It is important to consult the manufacturer's specifications for the specific reactor in question.
Factors such as pressure and temperature can also affect the required glass thickness.
Regular inspections and maintenance should be conducted to ensure the integrity of the glass lining.
I applied via Naukri.com and was interviewed in Jul 2021. There was 1 interview round.
Mechanical seal parameter refers to the specifications and characteristics of a mechanical seal used in rotating equipment.
Mechanical seal parameters include seal face material, seal face design, spring type, and secondary sealing elements.
Seal face material can be ceramic, carbon, or tungsten carbide depending on the application.
Seal face design can be single or double, balanced or unbalanced, and with or without a pu...
Mechanical seals can be installed on reactors by following a specific procedure.
Ensure the reactor is clean and free of debris
Select the appropriate mechanical seal based on the reactor's specifications
Install the seal according to the manufacturer's instructions
Check for leaks and make necessary adjustments
Perform regular maintenance to ensure the seal continues to function properly
Heat transfer is the movement of thermal energy from one object to another. There are three modes of heat transfer: conduction, convection, and radiation.
Conduction is the transfer of heat through a material without any movement of the material itself. Example: Touching a hot stove.
Convection is the transfer of heat through the movement of fluids (liquids or gases). Example: Boiling water.
Radiation is the transfer of h...
I applied via Recruitment Consultant and was interviewed in May 2021. There were 3 interview rounds.
The number of labors required in a cum RCC depends on various factors such as project size, complexity, and timeline.
The number of labors required in a cum RCC can vary depending on the size of the project. Larger projects may require more labors.
The complexity of the project also plays a role in determining the number of labors needed. More complex projects may require additional skilled labors.
The timeline of the pro...
posted on 18 Dec 2022
I applied via Company Website and was interviewed in Nov 2022. There were 2 interview rounds.
posted on 28 Jun 2021
I applied via Naukri.com and was interviewed in May 2021. There were 4 interview rounds.
2 h online assesment + recording answers via webcam
Some of the top questions asked at the Astec LifeSciences Maintenance Engineer interview -
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