Oman Refinery Company
Mobcoder Interview Questions and Answers
Q1. Which fire and gas protection system is familiar for you
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 system triggers alarms, activates fire suppression systems, a...read more
Q2. How you trouble shoot s7 PLC, Do you have designing knowledge
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 experience in designing PLC systems for various industrial applic...read more
Q3. Which makes Control valves do you can troubleshoot
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 valve problems like leakage, improper response, sticking,...read more
Q4. Do you have experience in Bently Newada system
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 enhance my knowledge and skills in using Bently Nevada sy...read more
Q5. How a control valve is calibrated
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
Q6. Why we use MOV.
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 spikes.
MOV is commonly used in power supplies, surge protecto...read more
Top Interview Questions from Similar Companies
Reviews
Interviews
Salaries
Users/Month