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I applied via Naukri.com and was interviewed before Jun 2020. There were 3 interview rounds.
I applied via Approached by Company and was interviewed before Jun 2021. There were 3 interview rounds.
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Rochem Separation Systems interview questions for popular designations
I applied via Recruitment Consultant and was interviewed in May 2019. There were 3 interview rounds.
SDI formula is used to measure the amount of silt or suspended solids in water.
SDI = (log(R1/R2) x 1000)/n
R1 is the initial flow rate of water through a filter
R2 is the flow rate after a certain period of time
n is the number of filters used in the test
PPM of dosing can be calculated by dividing the weight of the chemical added by the weight of the solution and multiplying by 1,000,000.
Determine the weight of the chemical added
Determine the weight of the solution
Divide the weight of the chemical by the weight of the solution
Multiply the result by 1,000,000 to get the PPM
PPM = (Weight of Chemical / Weight of Solution) x 1,000,000
Criteria of membranes refer to the characteristics that determine their effectiveness in separating substances.
Pore size
Selectivity
Permeability
Chemical compatibility
Mechanical strength
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The duration of Rochem Separation Systems interview process can vary, but typically it takes about less than 2 weeks to complete.
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Service Engineer
118
salaries
| ₹1.8 L/yr - ₹5.6 L/yr |
Technician
37
salaries
| ₹2 L/yr - ₹3.3 L/yr |
Design Engineer
21
salaries
| ₹1.8 L/yr - ₹5.2 L/yr |
Senior Service Engineer
21
salaries
| ₹3 L/yr - ₹9.6 L/yr |
RO Plant Operator
20
salaries
| ₹1 L/yr - ₹3 L/yr |
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