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ISS Facility Services
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ISS Facility Services RO Plant Operator Interview Questions and Answers
ISS Facility Services RO Plant Operator Interview Experiences
1 interview found
Anonymous
Selected
I applied via Walk-in
(3 Questions)
- Q1. What is ro plant
- Ans.
RO plant stands for Reverse Osmosis plant. It is a water treatment system that uses a semi-permeable membrane to remove impurities from water.
RO plant is used to purify water by removing contaminants through the process of reverse osmosis.
It works by applying pressure to the water, forcing it through a membrane that only allows pure water molecules to pass through, leaving behind impurities.
RO plants are commonly used ...
- Q2. How to work ro membrane
- Ans.
RO membrane works by using pressure to separate water molecules from impurities.
RO membrane uses a semi-permeable membrane to remove dissolved solids, ions, and other contaminants from water.
Water is forced through the membrane under high pressure, allowing only water molecules to pass through while rejecting impurities.
The membrane has tiny pores that are smaller than most contaminants, allowing only water molecules t...
- Q3. Tel me about your self
Interview Preparation Tips
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I applied via Referral and was interviewed before Aug 2021. There was 1 interview round.
(2 Questions)
- Q1. About switches, routers, servers and installation part and all in medium type
- Q2. English communication and local language Tamil must be for getting the job
Interview Preparation Tips
I applied via Referral and was interviewed before Nov 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. About my experience in low voltage system.
Interview Preparation Tips
I applied via Approached by Company and was interviewed before Apr 2021. There were 2 interview rounds.
Group discussion
Coding test
Interview Preparation Tips
- Smart Worker
(2 Questions)
- Q1. Reality to my Electrician job
- Q2. 10 question paper also given and we have to solve
Reality to my Electrician job and my family details
Interview Preparation Tips
But question is like higher than your education
(1 Question)
- Q1. MCB vcb acb mccb elcb rmu tre panel wiring starter
I applied via Referral and was interviewed before Oct 2020. There were 4 interview rounds.
Interview Questionnaire
2 Questions
- Q1. All related to E&M
- Q2. What is power factor.
- Ans.
Power factor is the ratio of real power to apparent power in an AC circuit.
It is a measure of how efficiently electrical power is being used.
It ranges from 0 to 1, with 1 being the most efficient.
A low power factor can result in higher energy costs and equipment damage.
Capacitors can be used to improve power factor.
Example: A motor with a power factor of 0.8 requires 1.25 times more current than a motor with a power fa
Interview Preparation Tips
I applied via Referral and was interviewed before Aug 2021. There were 2 interview rounds.
(1 Question)
- Q1. For xBis machines equipments and other parts related
Interview Preparation Tips
Selected
I appeared for an interview before Feb 2024.
(2 Questions)
- Q1. What is the role of (APFC)
- Ans.
The role of APFC (Automatic Power Factor Controller) is to maintain the power factor of electrical systems by automatically switching capacitors in and out of the circuit.
APFC monitors the power factor of the system and activates or deactivates capacitors accordingly.
It helps in reducing electricity bills by improving power factor and reducing reactive power consumption.
APFC ensures efficient utilization of electrical ...
- Q2. What is the Transformation Ratio?
- Ans.
Transformation ratio is the ratio of the number of turns in the primary winding to the number of turns in the secondary winding of a transformer.
Transformation ratio determines the voltage transformation between the primary and secondary windings of a transformer.
It is calculated as the ratio of the number of turns in the primary winding to the number of turns in the secondary winding.
For example, if a transformer has ...
Interview Preparation Tips
(2 Questions)
- Q1. Electrician Maintance
- Q2. Technical maintance
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ISS Facility Services RO Plant Operator Interview Process
based on 1 interview
Interview experience
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