Qatar Airways Diploma Mechanical Engineer Interview Questions, Process, and Tips

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Q1. What is the wheel
Ans. 
A circular object that rotates around an axis and is used for transportation or machinery.
• A wheel is typically made of metal or rubber and can be found on vehicles such as cars, bicycles, and trucks.

• Wheels are also used in machinery such as conveyor belts and pulleys.

• The invention of the wheel is considered one of the most important inventions in human history.

• Wheels can come in different sizes and shapes depending on ...read more
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Q2. What is the Rediyeato
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Rediyeato is not a known term in mechanical engineering.
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Q3. What is the staring
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Staring is the most important object is in the connect to the fly wheel and Easley to move wheel with the help to staring
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Q4. What is the pump
Ans. 
A pump is a mechanical device used to move fluids from one place to another.
• Pumps are used in various industries such as water treatment, oil and gas, and chemical processing.

• They can be classified into two types: positive displacement pumps and centrifugal pumps.

• Examples of pumps include water pumps, fuel pumps, and vacuum pumps.

• Pumps can be powered by electricity, diesel engines, or even human power.

• Pumps are essenti...read more
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Q5. What is the exhaust
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Exhaust is the waste gases or steam expelled from an engine, turbine, or other machine.
• Exhaust is produced when fuel is burned in an engine.

• It contains harmful pollutants such as carbon monoxide, nitrogen oxides, and particulate matter.

• Exhaust systems in vehicles are designed to reduce emissions and noise.

• Exhaust gases can also be used to power turbines and generate electricity.

• Regular maintenance of exhaust systems is...read more
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Q6. What is the gayer
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The question is unclear and does not make sense.
• The question is not related to mechanical engineering.

• It is likely a mistake or a joke.

• Without further context, it is impossible to provide a meaningful answer.
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Q7. What is the geyar box
Ans. 
Gearbox is a mechanical device that transmits power from an engine to the wheels.
• It is used to change the speed and torque of a vehicle.

• It contains gears of different sizes that mesh with each other to transmit power.

• It can be manual or automatic depending on the type of vehicle.

• Examples include a manual transmission in a car or a gearbox in a wind turbine.
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Q8. What is the jug
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A jug is a container with a handle and spout used for pouring liquids.
• Jugs can be made of various materials such as glass, ceramic, metal, or plastic.

• They come in different sizes and shapes, from small cream jugs to large water jugs.

• Jugs are commonly used for serving beverages such as water, milk, juice, or wine.

• Some jugs have lids or stoppers to keep the contents fresh or prevent spills.

• Jugs can also be used for decor
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Q1. What is the engine
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An engine is a machine that converts fuel into mechanical energy to power vehicles or machinery.
• Engines come in various types such as internal combustion, diesel, electric, and hybrid.

• They are used in cars, trucks, airplanes, boats, generators, and more.

• The engine's main components include cylinders, pistons, crankshaft, and camshaft.

• The engine's power output is measured in horsepower (hp) or kilowatts (kW).
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Q2. What is the connecting rod
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Connecting rod is a component in an engine that connects the piston to the crankshaft.
• It is a vital component in the engine that converts the reciprocating motion of the piston into rotary motion of the crankshaft.

• It is usually made of steel or aluminum alloy.

• It is subjected to high stress and must be designed to withstand the forces generated by the engine.

• It is attached to the piston by a piston pin and to the cranks...read more
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Q3. What is the wheel
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A wheel is a circular object that rotates around an axle and is used to facilitate movement or transportation.
• A wheel is typically made of metal or rubber and can be found on vehicles such as cars, bicycles, and trucks.

• Wheels can also be used in machinery and equipment to transfer power or motion.

• The invention of the wheel is considered one of the most important developments in human history.

• Wheels come in various size...read more
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Q4. What is the diesel engine
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A diesel engine is an internal combustion engine that uses diesel fuel to power its operation.
• Diesel engines are commonly used in heavy-duty vehicles such as trucks, buses, and trains.

• They are more fuel-efficient than gasoline engines and produce less carbon dioxide emissions.

• Diesel engines work by compressing air in the cylinder and then injecting diesel fuel into the compressed air, causing combustion.

• They are known ...read more
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Q5. What is the petrol engine
Ans. 
A petrol engine is an internal combustion engine that uses petrol as fuel to power the vehicle.
• Petrol engine is also known as gasoline engine.

• It converts the chemical energy of petrol into mechanical energy.

• It has four strokes: intake, compression, combustion, and exhaust.

• Examples include engines used in cars, motorcycles, and small aircraft.

• It is less fuel-efficient than diesel engines but produces more power.
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Q6. What is the Ac
Ans. 
AC stands for Alternating Current.
• AC is a type of electrical current that periodically reverses direction.

• It is commonly used in household appliances and power transmission.

• AC voltage and frequency vary depending on the country and region.

• AC can be converted to DC (Direct Current) using a rectifier.

• AC is measured in units of Hertz (Hz).
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