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10+ Oprating Engineer Interview Questions and Answers for Freshers

Updated 28 Oct 2024

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Q1. What is two stroke engine and four stroke engine

Ans.

Two stroke engines complete a power cycle in two strokes of the piston, while four stroke engines complete it in four strokes.

  • Two stroke engines have a simpler design and are lighter than four stroke engines.

  • Two stroke engines have a higher power-to-weight ratio than four stroke engines.

  • Four stroke engines are more fuel efficient and have a longer lifespan than two stroke engines.

  • Examples of two stroke engines include chainsaws, dirt bikes, and jet skis, while examples of fou...read more

Q2. What do u mean by petrol engine and desisel engine

Ans.

Petrol engine and diesel engine are two types of internal combustion engines that differ in their fuel ignition process.

  • Petrol engines use spark plugs to ignite the fuel-air mixture, while diesel engines use compression to ignite the fuel

  • Petrol engines are generally more powerful and responsive, while diesel engines are more fuel-efficient and have more torque

  • Examples of petrol engines include those found in cars, motorcycles, and small aircraft, while diesel engines are comm...read more

Q3. Traveling mode from one to other place if train available, or by bus can reach to mando office to join .

Ans.

I would prefer to travel by train if available for a more comfortable and efficient journey to the office.

  • I would choose to travel by train if it is available as it is usually faster and more comfortable than a bus.

  • Taking the train can also be more reliable in terms of arrival time compared to buses which may be affected by traffic.

  • Trains often have amenities such as restrooms and food services which can make the journey more convenient.

  • If the train is not available or the sc...read more

Q4. Types of mechanical industrial belts.....with drawing and Explanation

Ans.

Types of mechanical industrial belts include V-belts, timing belts, flat belts, and ribbed belts.

  • V-belts: commonly used for power transmission in industrial machinery

  • Timing belts: used in engines to synchronize the rotation of the crankshaft and camshaft

  • Flat belts: used for conveying materials in industrial applications

  • Ribbed belts: have longitudinal ribs on the inner side for better grip and reduced slippage

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Q5. What do you know about shock absorber

Ans.

Shock absorbers are devices that help to absorb and dampen shocks and vibrations.

  • They are commonly used in vehicles to improve ride comfort and handling

  • They work by converting kinetic energy into heat energy

  • They consist of a piston and cylinder filled with hydraulic fluid

  • The fluid is forced through small holes or valves to slow down the movement of the piston

  • There are different types of shock absorbers, including twin-tube, monotube, and coilover

  • Regular maintenance and replac...read more

Q6. Final project during collage describe? Operations?

Ans.

My final project in college involved designing and implementing a new system for optimizing operations in a manufacturing plant.

  • Researched current operations and identified areas for improvement

  • Designed a new system using software and automation technology

  • Implemented the system in a pilot program at the manufacturing plant

  • Monitored and evaluated the system's performance to measure its impact on operations

  • Presented findings and recommendations to faculty and industry professio...read more

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Q7. Chaking In Tha Radiator

Ans.

Checking the radiator is an important task for an operating engineer.

  • Check the radiator for any leaks or damage.

  • Ensure that the radiator is properly filled with coolant.

  • Inspect the radiator fins for any debris or blockages.

  • Verify that the radiator fan is functioning correctly.

  • Monitor the temperature gauge to ensure the radiator is cooling effectively.

Q8. What is the technical department?

Ans.

The technical department is responsible for overseeing and managing the technical aspects of a company or organization.

  • Responsible for maintenance and repair of equipment and machinery

  • Developing and implementing technical procedures and protocols

  • Providing technical support to other departments

  • Ensuring compliance with safety regulations and standards

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Q9. How many types of shaft

Ans.

There are several types of shafts including straight, stepped, tapered, splined, and flexible.

  • Straight shafts are the most common type and have a uniform diameter throughout their length.

  • Stepped shafts have varying diameters at different sections.

  • Tapered shafts have a gradually decreasing diameter from one end to the other.

  • Splined shafts have ridges or teeth along their length to connect with other components.

  • Flexible shafts are used in applications where a rigid shaft cannot...read more

Q10. How drill machine works.....

Ans.

A drill machine works by rotating a drill bit to create holes in various materials.

  • Drill machines use a motor to rotate the drill bit at high speeds.

  • The drill bit is pressed against the material being drilled, creating a hole.

  • Different types of drill bits are used for different materials, such as wood, metal, or concrete.

Q11. Introduce ur self

Ans.

I am a skilled operating engineer with experience in heavy equipment operation and maintenance.

  • I have operated and maintained various types of heavy equipment such as bulldozers, excavators, and cranes.

  • I am knowledgeable in safety procedures and regulations related to heavy equipment operation.

  • I have experience working in construction sites and industrial facilities.

  • I am a quick learner and able to adapt to new equipment and technologies.

  • I am a team player and able to communi...read more

Q12. What is damper.

Ans.

A damper is a device that reduces or controls the flow of air, gas, or liquid.

  • Used in HVAC systems to regulate airflow

  • Can be manually or automatically controlled

  • Examples include fire dampers, smoke dampers, and volume dampers

Q13. What is piston .

Ans.

A piston is a component of an engine that moves back and forth in a cylinder, converting pressure into mechanical energy.

  • A piston is typically made of aluminum alloy or cast iron.

  • It is connected to a connecting rod, which in turn is connected to the crankshaft.

  • The movement of the piston creates the necessary pressure to drive the engine.

  • Pistons are commonly found in internal combustion engines, such as those used in cars and motorcycles.

Q14. Types Of gears?

Ans.

Types of gears include spur gears, helical gears, bevel gears, worm gears, rack and pinion gears, and planetary gears.

  • Spur gears have straight teeth and are the most common type of gear.

  • Helical gears have angled teeth for smoother and quieter operation.

  • Bevel gears have cone-shaped teeth and are used to change the direction of rotation.

  • Worm gears have a screw-like appearance and provide high gear reduction ratios.

  • Rack and pinion gears convert rotational motion into linear moti...read more

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