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Kuwait National Petroleum Company Mechanical Technician Interview Questions and Answers
11 Interview questions
A globe valve is a type of valve used to regulate or stop the flow of fluid in a pipeline.
It has a spherical body with an internal baffle that directs the flow of fluid.
The valve can be opened or closed by rotating the stem.
It provides a tight seal when closed, preventing leakage.
Globe valves are commonly used in applications where throttling or regulating flow is required.
They are often found in water systems, st...
Positive displacement pump is a type of pump that moves fluid by trapping a fixed amount of it and then forcing it into the discharge pipe.
Positive displacement pumps operate by trapping a specific volume of fluid and then forcing it into the discharge pipe.
These pumps are capable of generating high pressures and are used in various industries such as oil and gas, chemical, and food processing.
Examples of positive...
An axial flow pump is a type of pump that uses an impeller to create fluid flow parallel to the pump shaft.
Axial flow pumps are commonly used in applications where large volumes of fluid need to be moved at low to medium pressures.
They are often used in irrigation systems, drainage systems, and cooling systems.
The impeller of an axial flow pump has blades that resemble a propeller, which helps in generating the ax...
A shell and tube heat exchanger is a device used to transfer heat between two fluids.
Consists of a shell (outer vessel) and tubes (inner vessels)
One fluid flows through the tubes while the other flows around the tubes in the shell
Heat is transferred from one fluid to the other through the tube walls
Commonly used in industries such as power generation, chemical processing, and HVAC
Example: Cooling water in a power ...
A centrifugal pump is a mechanical device used to transport fluids by converting rotational kinetic energy into hydrodynamic energy.
Centrifugal pumps are commonly used in various industries, including oil and gas, water treatment, and HVAC systems.
They work by using an impeller to rotate and create a centrifugal force, which pushes the fluid towards the pump outlet.
The fluid enters the pump through the suction inl...
PPE stands for Personal Protective Equipment. It refers to protective clothing, helmets, goggles, or other equipment designed to protect the wearer's body from injury or infection.
PPE is used in various industries to protect workers from hazards.
Examples of PPE include safety glasses, gloves, hard hats, respirators, and earplugs.
PPE should be selected based on the specific hazards present in the workplace.
Proper t...
A check valve is a mechanical device that allows fluid to flow in one direction only.
Check valves are commonly used in plumbing systems to prevent backflow of water.
They are also used in hydraulic systems to prevent reverse flow of fluid.
Check valves can be classified into different types such as swing check valves, lift check valves, and ball check valves.
These valves work by using a disc or a ball that opens and...
PPE stands for Personal Protective Equipment.
PPE is equipment worn to minimize exposure to hazards that may cause serious workplace injuries or illnesses.
Examples of PPE include safety glasses, gloves, hard hats, respirators, and safety shoes.
PPE should be selected based on the specific hazards present in the workplace.
Employers are responsible for providing PPE to their employees and ensuring that it is properly ...
There are several types of valves used in mechanical systems.
Gate valve: used to control the flow of fluid by lifting or lowering a gate
Ball valve: uses a ball to control the flow of fluid
Butterfly valve: uses a disc to control the flow of fluid
Check valve: allows fluid to flow in one direction only
Globe valve: controls flow by raising or lowering a plug
Needle valve: uses a long, tapered needle to control flow
Diap...
There are several types of heat exchangers, including shell and tube, plate and frame, and finned tube.
Shell and tube heat exchangers are the most common type and consist of a shell with tubes inside.
Plate and frame heat exchangers use thin plates to transfer heat between fluids.
Finned tube heat exchangers have tubes with fins attached to increase surface area for heat transfer.
Other types include spiral, double p...
Kuwait National Petroleum Company Mechanical Technician Interview Experiences
1 interview found
Raju Durai
(11 Questions)
- Q1. What is centrifugal pump?
- Ans.
A centrifugal pump is a mechanical device used to transport fluids by converting rotational kinetic energy into hydrodynamic energy.
Centrifugal pumps are commonly used in various industries, including oil and gas, water treatment, and HVAC systems.
They work by using an impeller to rotate and create a centrifugal force, which pushes the fluid towards the pump outlet.
The fluid enters the pump through the suction inlet an...
- Q2. How many types of valve? What are they?
- Ans.
There are several types of valves used in mechanical systems.
Gate valve: used to control the flow of fluid by lifting or lowering a gate
Ball valve: uses a ball to control the flow of fluid
Butterfly valve: uses a disc to control the flow of fluid
Check valve: allows fluid to flow in one direction only
Globe valve: controls flow by raising or lowering a plug
Needle valve: uses a long, tapered needle to control flow
Diaphragm...
- Q3. Write about ball valve?
- Ans.
A ball valve is a type of valve that uses a ball-shaped disc to control the flow of fluid through a pipe.
Ball valves are commonly used in industrial applications for their durability and reliability.
They have a simple design, consisting of a ball with a hole in the middle that can be rotated to control the flow of fluid.
Ball valves can be either full port or reduced port, depending on the size of the ball and the hole.
...
- Q4. What is shell and tube heat exchanger?
- Ans.
A shell and tube heat exchanger is a device used to transfer heat between two fluids.
Consists of a shell (outer vessel) and tubes (inner vessels)
One fluid flows through the tubes while the other flows around the tubes in the shell
Heat is transferred from one fluid to the other through the tube walls
Commonly used in industries such as power generation, chemical processing, and HVAC
Example: Cooling water in a power plant...
- Q5. How many types of heat exchanger? What are they?
- Ans. There are 5 types heat exchanger. They are classified in to : Shell and Tube heat exchanger, Air cooled heat exchanger, Plate type heat exchanger, Spiral heat exchanger, Double pipe heat exchanger.
- Q6. What is that full form of PPE?
- Ans.
PPE stands for Personal Protective Equipment.
PPE is equipment worn to minimize exposure to hazards that may cause serious workplace injuries or illnesses.
Examples of PPE include safety glasses, gloves, hard hats, respirators, and safety shoes.
PPE should be selected based on the specific hazards present in the workplace.
Employers are responsible for providing PPE to their employees and ensuring that it is properly maint...
- Q7. What is axial flow pump?
- Ans.
An axial flow pump is a type of pump that uses an impeller to create fluid flow parallel to the pump shaft.
Axial flow pumps are commonly used in applications where large volumes of fluid need to be moved at low to medium pressures.
They are often used in irrigation systems, drainage systems, and cooling systems.
The impeller of an axial flow pump has blades that resemble a propeller, which helps in generating the axial f...
- Q8. Write about check valve?
- Ans.
A check valve is a mechanical device that allows fluid to flow in one direction only.
Check valves are commonly used in plumbing systems to prevent backflow of water.
They are also used in hydraulic systems to prevent reverse flow of fluid.
Check valves can be classified into different types such as swing check valves, lift check valves, and ball check valves.
These valves work by using a disc or a ball that opens and clos...
- Q9. Shortly explain about positive displacement pump?
- Ans.
Positive displacement pump is a type of pump that moves fluid by trapping a fixed amount of it and then forcing it into the discharge pipe.
Positive displacement pumps operate by trapping a specific volume of fluid and then forcing it into the discharge pipe.
These pumps are capable of generating high pressures and are used in various industries such as oil and gas, chemical, and food processing.
Examples of positive disp...
- Q10. What is globe valve?
- Ans.
A globe valve is a type of valve used to regulate or stop the flow of fluid in a pipeline.
It has a spherical body with an internal baffle that directs the flow of fluid.
The valve can be opened or closed by rotating the stem.
It provides a tight seal when closed, preventing leakage.
Globe valves are commonly used in applications where throttling or regulating flow is required.
They are often found in water systems, steam s...
- Q11. What is PPE ? Give it explain?
- Ans.
PPE stands for Personal Protective Equipment. It refers to protective clothing, helmets, goggles, or other equipment designed to protect the wearer's body from injury or infection.
PPE is used in various industries to protect workers from hazards.
Examples of PPE include safety glasses, gloves, hard hats, respirators, and earplugs.
PPE should be selected based on the specific hazards present in the workplace.
Proper traini...
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Interview questions from similar companies
Mechanical Technician Interview Questions & Answers
Reliance Industries
Pradeep Kumar Yadav
posted on 10 Jun 2022
(5 Questions)
- Q1. What are types of positive pump
- Ans.
Positive pumps are used to move fluids by creating a pressure difference.
Positive displacement pumps
Centrifugal pumps
Diaphragm pumps
Gear pumps
Piston pumps
Peristaltic pumps
Rotary pumps
Screw pumps
Vane pumps
- Q2. What is centrifugal pump
- Ans.
A centrifugal pump is a mechanical device that uses centrifugal force to transport fluids.
Centrifugal pumps are commonly used in various industries for fluid transportation.
They work by converting rotational energy from a motor into kinetic energy in the fluid.
The fluid enters the pump through the inlet and is accelerated by the impeller.
The impeller's rotation creates centrifugal force, pushing the fluid towards the p...
- Q3. Where is jockey pump located
- Ans.
The jockey pump is typically located in the fire pump room or near the main fire pump.
The jockey pump is a small pump used to maintain pressure in a fire protection system.
It is usually installed in conjunction with the main fire pump.
The jockey pump helps prevent the fire pump from starting and stopping frequently by maintaining a constant pressure in the system.
It is commonly found in the fire pump room or in close p...
- Q4. Where is fire engines used
- Ans.
Fire engines are used in various locations to respond to and extinguish fires.
Fire engines are used in cities and towns to respond to structural fires in buildings.
They are also used in rural areas to combat wildfires.
Fire engines are deployed at airports to handle aircraft fires and emergencies.
They are used in industrial areas to respond to fires in factories and warehouses.
Fire engines are even used on ships and boa...
- Q5. What is motor operator valve
- Ans.
A motor operator valve is a type of valve that is operated by an electric motor.
Motor operator valves are commonly used in industrial applications.
They are designed to control the flow of fluids or gases.
Motor operator valves can be used in various systems, such as pipelines, power plants, and manufacturing processes.
These valves are typically controlled remotely, allowing for automated operation.
Examples of motor oper...
Interview Preparation Tips
Know yourself and what you want
Apply even if you'r not qualified
Mechanical Technician Interview Questions & Answers
Reliance Industries
Anonymous
posted on 5 Apr 2024
Selected
(2 Questions)
- Q1. Type of pumps and pump sealing system and pump api plan
- Ans.
Different types of pumps include centrifugal, reciprocating, and rotary pumps. Pump sealing systems can include mechanical seals, packing seals, and magnetic drive seals. Pump API plans are standardized plans for pump maintenance and troubleshooting.
Types of pumps: centrifugal, reciprocating, rotary
Pump sealing systems: mechanical seals, packing seals, magnetic drive seals
Pump API plans: standardized plans for maintena...
- Q2. Compressors mechanical maintenance
Interview Preparation Tips
Experience: "tell me about yourself..i gave him info on me my family n in my hobbies i mentioned 'sports for fun' n he caught me der..
what would u play in commonwealth games?
who won max no of gold medals in the recent olympics..
(my answer was a simple ""no idea!!!""
tell me about ur industrial visits..which 1 did u like betr n give me some information on the part u liked the most..(then some details on motors etc)
what is a bearing?where do u see a bearing bein used in this room?? (fan)
why reliance?? why not siemens or abb??"
Skill Tips: "Just be confident even if u r unable to answer a few questions..they dont expect u to be perfect..they just want to see how much u kno n how much u can learn..n almost every company asks if u r comfortable to be placed anywhere in india..just say yes..they do that to test ur flexibility..n if u r really in need of a job, be prepared to go to any place..
If u r the first to be interviewed, u have higher chances of getting selected..an empirical observation.."
College Name: Veermata Jijabai Technological Institute, Mumbai [ VJTI ]
Instrumentation Technician Interview Questions & Answers
Gujarat State Petronet
Anonymous
posted on 15 Nov 2022
I applied via Referral and was interviewed before Nov 2021. There were 4 interview rounds.
(1 Question)
- Q1. Calibration pressure and temperature
- Ans.
Calibration of pressure and temperature involves adjusting instruments to ensure accurate readings.
Calibration involves comparing the readings of a device to a known standard and making adjustments if necessary.
For pressure calibration, a pressure gauge is connected to a reference standard to check accuracy.
Temperature calibration may involve using a temperature bath with known values to adjust a thermometer.
Regular ca...
(1 Question)
- Q1. Calibration pt and tt
(3 Questions)
- Q1. Line location , calibration,mentenc
- Q2. Family questions
- Q3. Location please
Selected
I applied via Walk-in and was interviewed before Jan 2024. There was 1 interview round.
(5 Questions)
- Q1. Why Conveyor use in Matterials Handling
- Ans.
Conveyors are used in materials handling to efficiently transport goods or materials from one place to another.
Conveyors help in automating the transportation process, increasing efficiency and reducing manual labor.
They can handle a wide range of materials, from small parts to heavy items.
Conveyors can be customized to fit specific needs, such as incline or decline conveyors for elevation changes.
Examples of conveyors...
- Q2. What is preventive maintenance
- Ans.
Preventive maintenance is the practice of regularly inspecting, servicing, and replacing parts to prevent equipment failure.
Regularly scheduled inspections and maintenance tasks are performed to prevent breakdowns
Replacement of worn out parts before they fail to avoid costly repairs
Helps in increasing the lifespan of equipment and reducing downtime
Examples include changing oil in a car engine, cleaning air filters in H...
- Q3. How to calculate Belt length
- Ans.
Belt length can be calculated using the formula: L = 2C + (πD)
Measure the distance around the pulleys (C)
Measure the diameter of the larger pulley (D)
Use the formula L = 2C + (πD) to calculate the belt length
For example, if C = 30 inches and D = 10 inches, then L = 2(30) + (3.14)(10) = 60 + 31.4 = 91.4 inches
- Q4. Types of Pully used in any conveyor
- Ans.
Types of pulleys commonly used in conveyors include drive pulleys, idler pulleys, and snub pulleys.
Drive pulleys are used to transmit power from the motor to the conveyor belt.
Idler pulleys are used to support and guide the conveyor belt.
Snub pulleys are used to increase the angle of wrap around the drive pulley to improve traction.
Other types of pulleys may include bend pulleys, take-up pulleys, and wing pulleys.
Diffe...
- Q5. Types of joint use in Engineering
- Ans.
Various types of joints used in engineering include welded joints, bolted joints, riveted joints, and adhesive joints.
Welded joints involve fusing two materials together using heat or pressure.
Bolted joints use bolts and nuts to secure two materials together.
Riveted joints involve using rivets to connect two materials.
Adhesive joints use adhesives to bond materials together.
Instrumentation Technician Interview Questions & Answers
Oil And Natural Gas Corporation
Md Asif
posted on 1 Apr 2025
I appeared for an interview before Apr 2024, where I was asked the following questions.
- Q1. What is instrument
- Ans.
An instrument is a device used to measure, control, or manipulate physical quantities in various fields.
Instruments can measure temperature, pressure, flow, and level.
Examples include thermometers, manometers, flow meters, and level sensors.
They are essential in industries like manufacturing, healthcare, and environmental monitoring.
Instruments can be analog or digital, with varying degrees of precision and functionali...
- Q2. What ispressure
- Ans.
Pressure is the force applied per unit area on a surface, influencing fluid dynamics and mechanical systems.
Pressure is measured in units such as Pascals (Pa), atmospheres (atm), or pounds per square inch (psi).
In fluids, pressure increases with depth due to the weight of the fluid above.
Example: Atmospheric pressure at sea level is approximately 101.3 kPa.
In medical terms, blood pressure is a critical measure of cardi...
I applied via Referral and was interviewed before Apr 2022. There were 3 interview rounds.
(2 Questions)
- Q1. Why would you like to work with shell?
- Ans.
I am drawn to Shell for its commitment to innovation, sustainability, and global impact in the energy sector.
Shell's focus on renewable energy aligns with my passion for sustainable engineering solutions.
The opportunity to work on cutting-edge technologies, such as carbon capture and storage, excites me.
Shell's global presence offers a chance to collaborate with diverse teams and tackle complex engineering challenges.
I...
- Q2. Have you worked in any oil and gas facility before now?
What I know about permit to work system
Mechanical Engineer Interview Questions & Answers
Reliance Industries
Anonymous
posted on 7 Dec 2022
Selected
I applied via Recruitment Consulltant and was interviewed before Dec 2021. There were 3 interview rounds.
(3 Questions)
- Q1. What are your achievement
- Q2. What are the different types of pump and sealing system you known
- Ans.
Different types of pumps include centrifugal, positive displacement, and axial flow. Sealing systems include mechanical, gland, and magnetic.
Centrifugal pumps use a rotating impeller to create a flow of fluid. Examples include end-suction, inline, and multistage pumps.
Positive displacement pumps move fluid by trapping a fixed amount and forcing it through the discharge. Examples include piston, diaphragm, and gear pump...
- Q3. What are the maintenance philosophy you known about
- Ans.
Maintenance philosophies include preventive, predictive, corrective, and reliability-centered maintenance.
Preventive maintenance involves regularly scheduled inspections and maintenance to prevent equipment failure.
Predictive maintenance uses data analysis and monitoring to predict when maintenance is needed.
Corrective maintenance is performed after a failure has occurred to restore equipment to working condition.
Relia...
(2 Questions)
- Q1. Why you want to leave the current organization
- Q2. What is your salary expectations
Interview Preparation Tips
Electrical Technician Interview Questions & Answers
Reliance Industries
Anonymous
posted on 31 Jan 2024
Selected
I applied via Walk-in and was interviewed in Dec 2023. There was 1 interview round.
(5 Questions)
- Q1. Power supply machine
- Q2. Electrical equipment
- Q3. T/F or DG Related
- Q4. Power supply related
- Q5. AC DC power supply related
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Kuwait National Petroleum Company Mechanical Technician Reviews and Ratings
based on 9 reviews
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