Thermax Limited Interview Questions, Process, and Tips for Experienced

Basic & technical details of vote field

Q1. Indian standard codes, details, general work practice
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Q2. Soil liquid & plastic limit criteria and compaction test requirement
Ans. 
Soil liquid & plastic limit criteria and compaction test requirement
• Soil liquid limit is the moisture content at which soil transitions from a plastic to a liquid state

• Soil plastic limit is the moisture content at which soil can be rolled into a thread of a specific diameter without breaking

• Compaction test is used to determine the optimal moisture content and maximum dry density of soil for construction
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Q1. Only salary discussion
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Q1. Regarding previous role
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Normal as normal competitive exam apptiude from rs agrawal

Q1. Good question from work experience
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Q2. Tell me about yourself What have you faced major challenge
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Q1. Efficiency calculation of fired boilers.
Ans. 
Efficiency of fired boilers can be calculated by dividing the energy output by the energy input.
• Efficiency = (Energy output / Energy input) * 100%

• Energy output can be measured in terms of steam production or heat transfer to water

• Energy input is the fuel energy input to the boiler

• Efficiency can be improved by optimizing combustion, insulation, and heat recovery systems
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Q2. Heat rate of turbine.
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The heat rate of a turbine is a measure of how efficiently it converts fuel into electricity.
• Heat rate is typically measured in British thermal units (BTUs) per kilowatt-hour (kWh).

• A lower heat rate indicates higher efficiency, as less fuel is needed to generate the same amount of electricity.

• Factors affecting heat rate include turbine design, operating conditions, and maintenance practices.

• For example, a combined cycl...read more
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Q3. Fire tube and water tube boilers
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Q4. Bi drum boiler erection sequence
Ans. 
The erection sequence of a bi drum boiler involves several key steps to ensure proper installation and functionality.
• Start by preparing the foundation for the boiler to ensure stability and support.

• Next, assemble the lower drum and connect it to the foundation securely.

• Then, install the upper drum and connect it to the lower drum using appropriate fittings.

• After that, install the boiler tubes and headers to facilitate ...read more
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Q5. Safety interlock of fired boilers.
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Safety interlock of fired boilers is a crucial system that ensures safe operation by preventing unsafe conditions.
• Safety interlock system is designed to shut down the boiler if unsafe conditions are detected, such as low water level or high pressure.

• Interlocks may include sensors, alarms, and automatic shutdown mechanisms.

• Regular maintenance and testing of safety interlock systems are essential to ensure they function ...read more
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Q1. How many days Notice period
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Q1. Whats is enthalpy
Ans. 
Enthalpy is a thermodynamic property that represents the total heat content of a system.
• Enthalpy is denoted by the symbol H.

• It is defined as the sum of the internal energy of a system and the product of its pressure and volume.

• Enthalpy change (∆H) is the difference in enthalpy between the initial and final states of a system.

• Enthalpy is commonly used in chemical reactions and phase changes.

• It can be measured using calo...read more
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Q1. Properties of steam
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Steam is the gaseous state of water, formed when water boils or evaporates.
• Steam is invisible and consists of water vapor.

• It is lighter than air and rises upwards.

• Steam is produced when heat is applied to water, causing the water molecules to gain energy and turn into vapor.

• Steam is used in various applications such as power generation, cooking, and sterilization.

• It can cause severe burns if directly exposed to the ski
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Q1. Question asking from synchronisation process.
Ans. First off all wait for TG rated speed =check ready for excitation in avr panel=press excitation on button in avr panel=select breaker for synchronisation=select sync. on=select synchronisation mode in manual= adjust voltage and frequency= select synchronisation in auto mode
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