TVS Motor Mechanical Maintenance Engineer Interview Questions and Answers

Q1. Diploma in mechanical engineering
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Q2. Government polytechnic college
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Q1. Mechanical engineering
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Q2. Diploma in mechanical engineer
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Q3. Quality Design department
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Q1. What is the steam turbine's work?
Ans. 
Steam turbine converts thermal energy in steam into mechanical energy.
• Steam enters the turbine and expands, causing the rotor to spin

• The spinning rotor is connected to a generator, producing electricity

• Used in power plants, refineries, and other industrial applications
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Q2. What is the impulse turbine efficiency?
Ans. 
Impulse turbine efficiency is the ratio of actual work output to the theoretical work input, typically ranging from 70-90%.
• Impulse turbine efficiency is calculated as the ratio of actual work output to the theoretical work input.

• It is typically in the range of 70-90%, depending on the design and operating conditions of the turbine.

• Factors affecting impulse turbine efficiency include blade design, nozzle efficiency, and...read more
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Q3. What is the obsolete angle of impulse turbine?
Ans. 
The obsolete angle of impulse turbine is the angle at which the blades are set in relation to the direction of the water flow.
• Obsolete angle is typically around 20-22 degrees for impulse turbines.

• It determines the efficiency and performance of the turbine.

• Incorrect angle can lead to reduced power output and efficiency.

• Examples: Pelton wheel, Turgo turbine.
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Q4. What is the blade efficiency of impulse turbine?
Ans. 
Blade efficiency of impulse turbine is typically around 80-90%.
• Blade efficiency is a measure of how effectively the blades of a turbine convert the kinetic energy of the fluid into mechanical energy.

• It is calculated as the ratio of the actual work done by the blades to the work that would be done if the fluid were to expand isentropically.

• Blade efficiency for impulse turbines is generally higher than reaction turbines,...read more
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Q5. What is the efficiency of impulse turbine?
Ans. 
The efficiency of an impulse turbine is typically around 70-90%.
• Efficiency is calculated as the ratio of actual work output to the theoretical work input.

• Impulse turbines have high efficiency due to the fact that the energy transfer occurs in stages.

• Efficiency can be affected by factors such as blade design, operating conditions, and maintenance.

• Examples of impulse turbines include Pelton wheel and Turgo turbine.
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45 minutes, moderate level questions

Q1. Types of pumps and which pumps are used for which purpose
Ans. 
Types of pumps include centrifugal, reciprocating, rotary, and diaphragm pumps. Each pump is used for specific purposes based on its design and capabilities.
• Centrifugal pumps are commonly used for water and sewage systems.

• Reciprocating pumps are suitable for high-pressure applications like hydraulic systems.

• Rotary pumps are used for viscous fluids like oils and chemicals.

• Diaphragm pumps are ideal for handling corrosive
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Q2. Difference between otto and diesel cycle
Ans. 
Otto cycle is used in gasoline engines while diesel cycle is used in diesel engines.
• Otto cycle is a constant volume cycle while diesel cycle is a constant pressure cycle.

• In Otto cycle, fuel-air mixture is ignited by a spark plug while in diesel cycle, fuel is injected into the combustion chamber at high pressure.

• Otto cycle has a higher thermal efficiency compared to diesel cycle.

• Examples of engines using Otto cycle inc...read more
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Q1. What are you doing
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Q2. Why there was career gap
Ans. 
Took time off to care for a sick family member and focus on personal health.
• Took a break to care for a sick family member

• Needed time to focus on personal health and well-being

• Used the time to pursue further education or training
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Q1. From which college do u have do engining ?
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Q2. How much i learned from college
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Q1. What is Motors Principal
Ans. 
Motor's principal refers to the basic operating principle of an electric motor.
• Electric motors work on the principle of electromagnetic induction.

• They convert electrical energy into mechanical energy.

• The basic components of a motor include a stator, rotor, and commutator.

• Examples of motors include AC motors, DC motors, and brushless motors.
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Q2. What is function of controller
Ans. 
The controller is a device that manages the operation of a system or machine by receiving input and sending output signals.
• Controls the operation of a system or machine

• Receives input signals

• Sends output signals

• Regulates and coordinates the functions of different components

• Examples: temperature controller in HVAC system, speed controller in a motor
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Q1. Questions about job applied and asked some technical questions and any work experience
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