20+ John Deere Interview Questions and Answers for Freshers

2 stroke and 4 stroke engines are types of internal combustion engines with different cycles.

• 2 stroke engine completes a power cycle in 2 strokes of the piston, while a 4 stroke engine completes it in 4 strokes.

• In a 2 stroke engine, the intake, compression, power, and exhaust strokes occur in just 2 strokes of the piston.

• In a 4 stroke engine, the intake, compression, power, and exhaust strokes occur in 4 separate strokes of the piston.

• 2 stroke engines are simpler and lighter,...read more

Temperature profile over a flat plate becomes parabolic due to the energy equation.

• The energy equation describes the conservation of energy in a fluid flow.

• For a flat plate, the energy equation simplifies to the heat conduction equation.

• The heat conduction equation is a second-order partial differential equation.

• The solution to the heat conduction equation for a flat plate yields a parabolic temperature profile.

• This parabolic profile is due to the balance between heat conduct...read more

Explanation of velocity and shear stress profiles for circular pipe and Couette flow with boundary conditions.

• Velocity profile for circular pipe is parabolic, while for Couette flow it is linear.

• Shear stress profile for circular pipe is also parabolic, while for Couette flow it is constant.

• Boundary conditions for circular pipe include no slip at the wall and constant pressure at the ends.

• Boundary conditions for Couette flow include no slip at the stationary wall and constant ...read more

Explanation of engineering and true stress strain graphs and their different regions.

• Engineering stress-strain graph shows the relationship between stress and strain during deformation of a material.

• True stress-strain graph takes into account the reduction in cross-sectional area of the specimen during deformation.

• The different regions in the graph are elastic region, yield point, plastic region, necking and fracture.

• Elastic region is where the material behaves elastically an...read more

The energy equation is a mathematical representation of the conservation of energy principle in various forms.

• The energy equation states that the total energy of a system remains constant.

• It includes terms such as kinetic energy, potential energy, internal energy, and work done.

• Kinetic energy is the energy possessed by an object due to its motion.

• Potential energy is the energy stored in an object due to its position or condition.

• Internal energy is the sum of the microscopic k...read more

To achieve the hit target, focus on optimizing production processes, setting clear goals, and fostering a collaborative work environment.

• Analyze current production processes and identify areas for improvement

• Implement lean manufacturing principles to eliminate waste and increase efficiency

• Set specific, measurable, attainable, relevant, and time-bound (SMART) goals

• Regularly monitor progress towards the target and make adjustments as needed

• Promote open communication and collabo...read more

The project planning and execution went well, resulting in meeting deadlines and achieving project goals.

• Effective communication among team members

• Proper allocation of resources

• Regular monitoring and tracking of progress

• Adaptability to changes in project requirements

Production is the process of creating goods or services. Production quality problems in line refer to issues that arise during the manufacturing process.

• Production involves the creation of goods or services through a series of processes

• Production quality problems in line refer to issues that occur during the manufacturing process, such as defects in the product or delays in production

• Examples of production quality problems in line include equipment breakdowns, supply chain di...read more

A clutch is a mechanical device that engages and disengages power transmission between two rotating shafts.

• Clutches are commonly used in vehicles to allow the engine to start and stop without turning off the transmission.

• They are also used in machines to control the power output and speed.

• Clutches can be operated manually or automatically.

• There are different types of clutches, including friction clutches, hydraulic clutches, and electromagnetic clutches.

• The proper use and mai...read more

Different types of windings in transformers include primary winding, secondary winding, and tertiary winding.

• Primary winding: receives electrical power from the source

• Secondary winding: delivers electrical power to the load

• Tertiary winding: used in special transformers for specific applications

• Auto-transformer winding: single winding used as both primary and secondary

• Leakage winding: used to reduce leakage flux in the transformer

Different types of losses in a transformer include copper losses, iron losses, and stray losses.

• Copper losses: Also known as I^2R losses, occur in the windings due to resistance.

• Iron losses: Also known as core losses, occur in the core due to hysteresis and eddy currents.

• Stray losses: Occur due to leakage flux and imperfect magnetic coupling.

• Eddy current losses: Occur in the core due to circulating currents induced by changing magnetic fields.

• Hysteresis losses: Occur in the c...read more

Min by 5s means finding the minimum value among a set of numbers that are multiples of 5.

• Identify all the numbers that are multiples of 5 in the given set.

• Compare these numbers to find the smallest value.

• The smallest number among the multiples of 5 is the min by 5s.

Cumpani rul is a term used in production engineering to refer to company rules and regulations.

• Cumpani rul are guidelines set by the company to ensure smooth operations.

• These rules may include safety protocols, quality standards, and production processes.

• Employees are expected to adhere to cumpani rul to maintain efficiency and consistency in production.

• Failure to follow cumpani rul may result in disciplinary action or consequences.

• Examples of cumpani rul include wearing prop...read more

Ace and Refrigerate are two different terms and cannot be compared as they are not related.

• Ace is a term used to describe someone who is very skilled or proficient in a particular activity or subject.

• Refrigerate is a term used to describe the process of cooling or preserving food or other perishable items.

• Ace and Refrigerate are not related to each other and cannot be compared.

CI engines use compression ignition while SI engines use spark ignition.

• CI engines have higher compression ratios than SI engines.

• CI engines are more fuel efficient but produce more emissions.

• SI engines are used in most cars while CI engines are used in heavy-duty vehicles like trucks and buses.

A machine is a device that uses energy to perform a specific task. A gear is a rotating machine part with teeth that mesh with other gears.

• A machine is a mechanical or electrical device that uses energy to perform work or tasks.

• Gears are mechanical devices with teeth that mesh with other gears to transmit motion and power.

• Types of gears include spur gears, helical gears, bevel gears, worm gears, etc.

• Spur gears are the most common type and have straight teeth that are parallel...read more

A relay is an electrically operated switch. Components used in electronics include resistors, capacitors, transistors, diodes, and integrated circuits.

• Relay is an electrically operated switch used to control a circuit by a low-power signal

• Components used in electronics include resistors, capacitors, transistors, diodes, and integrated circuits

• Resistors are used to limit current flow, capacitors store and release electrical energy, transistors amplify or switch electronic sign...read more

Clutches are devices used to transmit power from one component to another. There are several types of clutches.

• Friction clutch

• Electromagnetic clutch

• Hydraulic clutch

• Centrifugal clutch

• Dog clutch

• Cone clutch

• Multi-plate clutch

Compression problem

• Compression is the process of reducing the size of data to save storage space or transmission time.

• Common compression algorithms include ZIP, GZIP, and DEFLATE.

• Lossless compression retains all the original data, while lossy compression sacrifices some data to achieve higher compression ratios.

• Compression can be applied to various types of data, such as text, images, audio, and video.

• Compression techniques include run-length encoding, Huffman coding, and Lem...read more

Advanced technology used in BS4 to BS6 includes improved engine efficiency, reduced emissions, and enhanced safety features.

• Implementation of advanced engine technologies such as turbocharging and direct injection for improved fuel efficiency

• Addition of exhaust gas recirculation (EGR) systems and diesel particulate filters (DPF) to reduce emissions

• Integration of electronic stability control (ESC) and advanced driver assistance systems (ADAS) for enhanced safety

• Introduction of...read more

Pass can be supplied from one point to another point through various means such as pipes, conveyors, or cables.

• Pipes can be used to supply liquids or gases from one point to another.

• Conveyors can be used to transport solid materials from one point to another.

• Cables can be used to transmit electrical signals or power from one point to another.

• The choice of method depends on the nature of the material being transported and the distance between the two points.

A diesel engine is an internal combustion engine that uses diesel fuel to power the vehicle.

• Diesel engines compress air to a high pressure, which causes the air to heat up.

• Fuel is then injected into the hot air, causing it to ignite and create energy.

• Diesel engines are commonly used in trucks, buses, and heavy machinery.

• They are more fuel-efficient than gasoline engines and have a longer lifespan.

• Diesel engines also produce more torque, making them better for hauling heavy lo...read more

Hydraulic working problem

• Check for leaks in the hydraulic system

• Inspect the hydraulic fluid level and quality

• Ensure proper pressure and flow rate

• Check for damaged or worn out hydraulic components

• Verify correct operation of valves and actuators

Power is transmitted to the engine through a system of belts, gears, and shafts connected to the engine's crankshaft.

• Power is typically transmitted from the engine to the wheels through a transmission system.

• In a manual transmission, power is transmitted through a clutch, gearbox, and driveshaft.

• In an automatic transmission, power is transmitted through a torque converter and planetary gearset.

• Some vehicles use a CVT (continuously variable transmission) to transmit power more...read more

Modulation is the process of varying a carrier signal's properties to transmit information.

• Modulation involves changing one or more properties of a high-frequency periodic waveform, called the carrier signal, in proportion to a signal to be transmitted.

• Common types of modulation include Amplitude Modulation (AM), Frequency Modulation (FM), and Phase Modulation (PM).

• Modulation allows for the efficient transmission of information over long distances by varying the carrier signa...read more

SAP is an enterprise resource planning software used for managing business operations and customer relations.

• SAP stands for Systems, Applications, and Products in Data Processing.

• It is used for managing various business functions such as finance, sales, production, and inventory management.

• SAP provides real-time data processing and analytics for better decision-making.

• It offers modules such as SAP MM (Material Management), SAP PP (Production Planning), and SAP QM (Quality Man...read more