Endurance Technologies Mechanical Maintenance Engineer Interview Questions and Answers

Q1. Mechanical maintenance
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Q2. Mechanical maintenance department
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Q3.  Mechanical Maintenance
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Q1. Mechanical maintenance
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Q2. Mechanical maintenance department
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Q1. Thermodynamics 3 laws
Ans. 
The three laws of thermodynamics describe the relationships between energy, heat, and work in a system.
• First Law: Energy cannot be created or destroyed, only transferred or converted.

• Second Law: Heat naturally flows from hot to cold objects, and not the other way around.

• Third Law: As temperature approaches absolute zero, the entropy of a perfect crystal approaches zero.
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Q2. What is Carnot cycle and efficiency?
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Carnot cycle is a theoretical thermodynamic cycle that operates between two heat reservoirs to achieve maximum efficiency.
• Carnot cycle consists of four reversible processes: isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression.

• The efficiency of Carnot cycle is given by the formula: Efficiency = 1 - (Tc/Th), where Tc is the temperature of the cold reservoir and Th is the temperatu...read more
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Q3. Newton's second law of motions?
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Newton's second law of motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
• F = ma, where F is the net force, m is the mass of the object, and a is the acceleration

• The direction of the acceleration is the same as the direction of the net force

• The SI unit of force is Newton (N)

• Example: A car accelerates faster when a greater force
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Q4. Bernoulli theorem.
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Bernoulli's theorem states that in a steady flow of fluid, the sum of pressure energy, kinetic energy, and potential energy per unit volume remains constant.
• Describes the relationship between pressure, velocity, and elevation in a fluid flow

• Used to analyze fluid flow in pipes, pumps, and other hydraulic systems

• Can be applied to calculate pressure drop in a pipe or the lift of a pump
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Q5. Define Pascal's law
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Pascal's law states that a change in pressure applied to an enclosed fluid is transmitted undiminished to all portions of the fluid and to the walls of its container.
• Pressure applied to a confined fluid is transmitted equally in all directions

• The pressure at any point in a fluid is the same in all directions

• Used in hydraulic systems to generate force or motion

• Example: Hydraulic car lift operates based on Pascal's law
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Reasoning and assertive queries

Q1. Technical related to Quality
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Q2. How much salary expected
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Q1. Family background
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Q2. Why changing organization
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Q3. Expected salary
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50*10%+60*15%= 14. If A=5,B,=6,C=7......Z=30 then sum of these word BASKET

Q1. What is the least count of Micrometer
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The least count of a micrometer is the smallest measurement that can be accurately read on the micrometer scale.
• The least count is determined by the number of divisions on the micrometer scale and the pitch of the screw.

• It is usually expressed in micrometers or millimeters.

• For example, if a micrometer has 50 divisions on the scale and the pitch of the screw is 0.5 mm, then the least count would be 0.01 mm (0.5 mm / 50
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Q2. What is type of defect in bearing?
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The types of defects in bearings include wear, corrosion, pitting, cracking, and misalignment.
• Wear: Occurs due to friction and can lead to loss of material and increased clearance.

• Corrosion: Caused by chemical reactions, leading to surface degradation and reduced performance.

• Pitting: Localized surface damage caused by fatigue or contaminants, resulting in roughness and reduced load-carrying capacity.

• Cracking: Can occur...read more
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Q3. What is the face grinding
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Face grinding is a machining process used to achieve smooth and precise surfaces on the face of a workpiece.
• Face grinding involves removing material from the face of a workpiece using a grinding wheel.

• It is commonly used in manufacturing industries to improve the flatness, parallelism, and surface finish of components.

• The process can be performed manually or using automated grinding machines.

• Face grinding is often used...read more
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Q4. What is type of bearing?
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A type of bearing is a device that supports a rotating shaft and reduces friction between moving parts.
• Bearings are used in various mechanical systems to enable smooth and efficient movement.

• There are several types of bearings, including ball bearings, roller bearings, and plain bearings.

• Ball bearings use balls to reduce friction and support radial and axial loads.

• Roller bearings use cylindrical or tapered rollers to s...read more
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Q5. Define the bearing ?
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A bearing is a mechanical component that supports the rotating shaft of a machine, allowing it to move smoothly and reduce friction.
• Bearings are used in various applications such as automobiles, industrial machinery, and household appliances.

• They consist of an inner and outer ring with rolling elements (balls or rollers) in between.

• Bearings can be classified into different types such as ball bearings, roller bearings, ...read more
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Q1. Please introduce yourself
Ans. My name is Gaurav Kumar Prajapati.I belong to Jaunpur Uttar Pradesh.I have passed Diploma in mechanical engineering in 2016 with 74% from Government Polytechnic Pratapgarh.
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Q1. Mechanical production engineer
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Q2. Navitasiya India private limited. Company
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Q1. Machine knowledge with shop floor knowledge
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Q2. All documents fill with working process and qualitywith problem-solving
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Q3. Quality assurance with quality control
Ans. 
Quality assurance focuses on preventing defects, while quality control focuses on identifying and correcting defects.
• Quality assurance involves creating processes and procedures to ensure that products or services meet specified requirements.

• Quality control involves inspecting and testing products or services to identify any defects or deviations from the specified requirements.

• Quality assurance aims to prevent defects...read more
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Q1. Tell me something about turbine.
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A turbine is a machine that converts the energy in a fluid flow into mechanical energy.
• Turbines are commonly used in power plants to generate electricity.

• There are different types of turbines such as steam turbines, gas turbines, and water turbines.

• Turbines have blades that rotate when the fluid flow passes through them, causing a shaft to spin and generate power.

• Turbines are used in various applications including airc...read more
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Q1. What is vernier caliper
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A vernier caliper is a measuring instrument used to accurately measure the dimensions of an object.
• It consists of a main scale and a sliding vernier scale.

• The main scale is fixed and provides the primary measurement.

• The vernier scale slides along the main scale and provides the fractional measurement.

• The vernier scale has finer graduations than the main scale, allowing for more precise measurements.

• To measure an object...read more
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Q2. What is micrometer
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A micrometer is a precision measuring instrument used to measure small distances or thicknesses.
• Micrometers are commonly used in mechanical engineering and manufacturing industries.

• They provide accurate measurements with high precision, typically up to 0.001mm or 0.0001 inch.

• Micrometers consist of a calibrated screw mechanism and a scale or digital display for reading the measurement.

• They are often used to measure dime...read more
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Q1. What is CNC and VMC machine
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CNC stands for Computer Numerical Control and VMC stands for Vertical Machining Center. They are machines used in manufacturing processes.
• CNC machines are automated machines that are controlled by a computer program to perform various tasks such as cutting, drilling, and shaping.

• VMC machines are a type of CNC machine that operates in a vertical orientation, allowing for precision machining of parts.

• Both CNC and VMC mac...read more
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