AmbitionBox
Interview Questions
- Reviews
- Salaries
- Interview Questions
- About Company
- Benefits
- Jobs
- Office Photos
- Community
Add office photos
Filter interviews by
Oman Refinery Company Interview Questions, Process, and Tips
Oman Refinery Company Interview Experiences
1 interview found
Anonymous
I applied via Naukri.com and was interviewed in Jun 2019. There were 5 interview rounds.
Interview Questionnaire
7 Questions
- Q1. Why we use MOV.
- Ans.
MOV (Metal Oxide Varistor) is used as a voltage protection device in electrical circuits.
MOV is used to protect sensitive electronic devices from voltage surges or transients.
It acts as a voltage-dependent resistor, limiting the voltage across the circuit.
MOV absorbs excess voltage and diverts it away from the protected equipment.
It has a high resistance at normal operating voltage and low resistance during voltage spi...
- Q2. How you trouble shoot s7 PLC, Do you have designing knowledge
- Ans.
To troubleshoot S7 PLC, I use a combination of software and hardware tools. I also have designing knowledge.
I use Siemens TIA Portal software to monitor and diagnose the PLC
I check the hardware components such as power supply, communication modules, and I/O modules
I use a multimeter to check the voltage and current levels
I have knowledge of ladder logic programming and can identify errors in the code
I also have experie...
- Q3. Some times S7 PLC show battery error for this we change it's internal battery. Some times place losses communication with backplane in this case we refix it correctly.
- Q4. How a control valve is calibrated
- Ans.
A control valve is calibrated by adjusting its position to achieve the desired flow rate or pressure drop.
Determine the desired flow rate or pressure drop
Connect the valve to a calibration rig
Adjust the valve position until the desired flow rate or pressure drop is achieved
Record the valve position and corresponding flow rate or pressure drop
Repeat the process at different setpoints to create a calibration curve
- Q5. Which makes Control valves do you can troubleshoot
- Ans.
I can troubleshoot various control valves used in instrumentation engineering.
I can troubleshoot globe valves, butterfly valves, ball valves, and plug valves.
I am familiar with different types of actuators used in control valves such as pneumatic, hydraulic, and electric actuators.
I can diagnose and fix issues related to valve positioners, solenoid valves, and valve controllers.
I have experience troubleshooting control...
- Q6. Do you have experience in Bently Newada system
- Ans.
Yes, I have experience in Bently Nevada system.
I have worked with Bently Nevada system for 3 years.
I am familiar with the various components and functionalities of the system.
I have successfully implemented Bently Nevada system in a project for monitoring and controlling industrial processes.
I have conducted troubleshooting and maintenance tasks on Bently Nevada system.
I have attended training sessions and workshops to...
- Q7. Which fire and gas protection system is familiar for you
- Ans.
The fire and gas protection system familiar to me is the Fire and Gas Detection System (FGDS).
FGDS is designed to detect and mitigate the risks of fire and gas hazards in industrial facilities.
It consists of various sensors, alarms, and control panels to monitor and respond to potential fire and gas incidents.
The system can detect smoke, heat, gas leaks, and other hazardous conditions.
Once a hazard is detected, the sys...
Interview Preparation Tips
And correct with clear voice quality
Skills evaluated in this interview
Top Oman Refinery Company Instrument Engineer Interview Questions and Answers
Instrument Engineer Interview Questions asked at other Companies
Interview questions from similar companies
I applied via Walk-in and was interviewed before Sep 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. A lot questions.
Interview Preparation Tips
I appeared for an interview before Jul 2020.
Interview Questionnaire
1 Question
- Q1. Is Infosys listed?
- Ans.
Yes, Infosys is listed on the Indian stock exchanges as well as on the NYSE.
Infosys is listed on the Bombay Stock Exchange (BSE) and National Stock Exchange of India (NSE)
It is also listed on the New York Stock Exchange (NYSE)
Infosys has a market capitalization of over $80 billion as of 2021
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Time management
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. They asked about dbms questions in the form of table formate
- Q2. They asked code for some python program
Interview Preparation Tips
I applied via Naukri.com and was interviewed before May 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Explain me about yourself
- Q2. Just be brief don't bore them
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Sep 2019. There were 5 interview rounds.
Interview Questionnaire
7 Questions
- Q1. 1.What is Opps concepts in Java.
- Ans.
OOPs concepts in Java are the fundamental principles of object-oriented programming.
Encapsulation: wrapping data and code into a single unit
Inheritance: creating new classes from existing ones
Polymorphism: using a single interface to represent multiple types
Abstraction: hiding implementation details from the user
Examples: class, object, inheritance, polymorphism, encapsulation
- Q2. 2.What is difference between stack and queue?
- Ans.
Stack is a LIFO data structure while Queue is a FIFO data structure.
Stack follows Last In First Out (LIFO) principle while Queue follows First In First Out (FIFO) principle.
Stack has two main operations: push and pop while Queue has two main operations: enqueue and dequeue.
Stack is used in recursive function calls, undo/redo operations, and backtracking while Queue is used in breadth-first search, printing tasks in ord...
- Q3. 3.Write SQL query to find second highest salary in database?
- Ans.
SQL query to find second highest salary in database
Use ORDER BY and LIMIT to get the second highest salary
Assume ties are allowed and use DISTINCT
- Q4. 4. Difference Between method overloading and method overriding?
- Ans.
Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.
Method overloading is done within the same class while method overriding is done in different classes (subclass and superclass).
Method overloading is achieved by changing the number of parameters or the data type of ...
- Q5. 5.which is the parent class of all classes in Java?
- Ans.
The parent class of all classes in Java is the Object class.
All classes in Java implicitly extend the Object class.
The Object class provides basic methods such as toString(), equals(), and hashCode().
Any class can override these methods to provide custom implementations.
Example: public class MyClass extends Object { ... }
Example: Object obj = new MyClass();
- Q6. Explain your final year project?
- Q7. Difference between SQL and NoSql database?
- Ans.
SQL databases are relational and use structured query language, while NoSQL databases are non-relational and use various data models.
SQL databases are based on a fixed schema, while NoSQL databases are schema-less.
SQL databases use tables to store data, while NoSQL databases use various data models like key-value, document, columnar, or graph.
SQL databases are better suited for complex queries and structured data, whil...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Company Website and was interviewed before Oct 2019. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Tell me about your self
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Duration of the project and team environment
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Jun 2021. There was 1 interview round.
(2 Questions)
- Q1. Tell me about yourself
- Q2. Why left previous organisation
Interview Preparation Tips
Oman Refinery Company Interview FAQs
Tell us how to improve this page.
Interview Questions for Popular Designations
- Executive Interview Questions
- Software Developer Interview Questions
- Business Analyst Interview Questions
- Sales Executive Interview Questions
- Consultant Interview Questions
- Graduate Engineer Trainee (Get) Interview Questions
- Senior Software Engineer Interview Questions
- Manager Interview Questions
- Show more
Interview Questions from Similar Companies
|
Senior Instrumentation Technician
3
salaries
|  ₹8.1 L/yr - ₹8.1 L/yr |
|
Senior Process Control Engineer
3
salaries
| ₹51 L/yr - ₹51 L/yr |
TCS
Accenture
Wipro
Cognizant
- Home >
- Interviews >
- Oman Refinery Company Interview Questions
