Kuwait National Petroleum Company Mechanical Technician Interview Questions, Process, and Tips for Experienced

Q1. Engine relented question and preventive maintenance
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Q2. Technical issue gear box
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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
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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
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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
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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
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Q5. What is motor operator valve
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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
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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
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Q2. Compressors mechanical maintenance
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Q1. Calibration pressure and temperature
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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...read more
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Q1. Calibration pt and tt
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Q1. Line location , calibration,mentenc
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Q2. Family questions
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Q3. Location please
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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...read more
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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
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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
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Q4. Types of Pully used in any conveyor
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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...read more
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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.
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Q1. What is current
Ans. 
Current is the flow of electric charge in a circuit.
• Current is measured in Amperes (A)

• It is the rate of flow of electric charge through a conductor

• There are two types of current - AC (alternating current) and DC (direct current)

• Examples of current include the flow of electrons in a wire when a light bulb is turned on
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Q2. What is voltage
Ans. 
Voltage is the difference in electric potential between two points in a circuit, measured in volts.
• Voltage is the driving force that pushes electric current through a circuit

• It is measured in volts (V)

• Voltage can be positive or negative, depending on the direction of current flow

• Higher voltage means more potential energy available to move electrons

• Example: A battery provides voltage to power a light bulb
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Q3. What is Ohm's law
Ans. 
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
• Ohm's law is expressed as V = I * R, where V is voltage, I is current, and R is resistance.

• It helps in calculating the current flowing through a circuit when the voltage and resistance are known.

• It can also be used to determine the resista...read more
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Q1. Why would you like to work with shell?
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Q2. Have you worked in any oil and gas facility before now?
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What I know about permit to work system