SONATRACH Mechanical Technician Interview Questions and Answers

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
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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...read more
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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...read more
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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...read more
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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...read more
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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...read more
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Q2. Compressors mechanical maintenance
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Q1. What is electrical system
Ans. 
An electrical system is a network of interconnected components that work together to generate, transmit, and distribute electrical power.
• An electrical system includes power generation sources such as power plants or renewable energy sources.

• It also includes transmission lines that carry electricity over long distances.

• Distribution networks deliver electricity to homes, businesses, and other end-users.

• Electrical systems...read more
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Q1. Fabrication and erection type.
Ans. 
Fabrication and erection type is a crucial aspect of mechanical engineering.
• Fabrication refers to the process of constructing or building something, while erection refers to the process of assembling or installing something.

• The type of fabrication and erection used depends on the project requirements, materials used, and budget.

• Examples of fabrication and erection types include welding, bolting, riveting, and adhesive ...read more
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Q1. Ill ready to for this type of interview
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Q1. Regarding job role, Maintenance strategy, Last troubleshooting which you handled
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Q2. Project which you have handled
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Q1. Mobile Repairing and smart watch repair
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