Mehra Metal Interview Questions and Answers

Q1. Genaral questions about pas work experience
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Q1. Questions related to work were asked and personal family details were also asked
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Q1. About compensation and time of joining only
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Prepare the core subjects som Thermo fluids and asked some of the manufacturing process

How we can reduce the use of non renewable resources

Q1. Hooks law, modulus of rigidity,stress strain curve
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Q2. About your industrial training
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Basic exam with some technical questions

Group of 6 were given a topic and we discussed.

Q1. Difference between structural bridge and concrete bridge?
Ans. 
Structural bridges can be made of various materials while concrete bridges specifically use concrete as the primary material.
• Structural bridges can be made of steel, wood, or other materials, while concrete bridges are primarily made of concrete.

• Concrete bridges are known for their durability and strength, making them a popular choice for infrastructure projects.

• Structural bridges may require more maintenance and upkee...read more
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Q2. Howrah bridge structure?
Ans. 
The Howrah Bridge is a cantilever bridge that spans the Hooghly River in West Bengal, India.
• Built in 1943, it is one of the busiest bridges in the world, carrying over 100,000 vehicles and countless pedestrians daily.

• The bridge does not have any nuts or bolts and is held together by rivets.

• It is a famous landmark in Kolkata and is often referred to as the 'Gateway of Kolkata'.
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Q1. Document verification
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Q1. IP configuration and Network security ,EPABX, IPABX
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Physics,chem,math,quantitative apti.. etc

Q1. Can you work with team
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Q2. What is elctrolysis,what do you know how we can prepare aluminium
Ans. 
Electrolysis is a process of breaking down a compound using electricity. Aluminium can be prepared by electrolysis of alumina.
• Electrolysis involves passing an electric current through a compound to break it down into its constituent elements.

• Aluminium is prepared by electrolysis of alumina (Al2O3) dissolved in molten cryolite (Na3AlF6).

• The process involves the use of carbon electrodes, which react with the oxygen relea...read more
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Q3. Can you work at a temp 50 degree
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Basic Maths, Science & Gk

Indian economy - 10 min

Q1. Difference between vs Refrigeration
Ans. 
Air conditioning is the process of altering the properties of air to make it more comfortable, while refrigeration is the process of removing heat from a space or substance.
• Air conditioning is used to cool and dehumidify indoor air for comfort.

• Refrigeration is used to preserve food, medicine, and other perishable items.

• Air conditioning uses a refrigerant to absorb heat from indoor air and release it outside.

• Refrigerati...read more
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Q2. Thermodynamics cycle.
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Q3. Material properties and usage in the real world
Ans. 
Material properties and usage are crucial in determining the performance and durability of products in the real world.
• Material properties such as strength, durability, and conductivity are important considerations in product design and development.

• Different materials have different properties and are suited for different applications. For example, steel is strong and durable, making it ideal for construction and manufa...read more
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Q4. Heat conduction vs Raidation
Ans. 
Heat conduction is the transfer of heat through a material, while radiation is the transfer of heat through electromagnetic waves.
• Heat conduction occurs in solids and liquids, while radiation can occur in vacuum or through transparent media.

• Heat conduction is slower than radiation.

• Examples of heat conduction include touching a hot stove or holding a warm cup of coffee, while examples of radiation include feeling the wa...read more
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Q1. Are you willing to relocate
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Q2. What is ur Expected CTC
Ans. 
My expected CTC is in line with industry standards and commensurate with my experience and skills.
• My expected CTC is based on my current salary, industry standards, and the responsibilities of the role.

• I have researched the market and have a realistic expectation for my salary.

• I am open to negotiation based on the overall compensation package.

• I am looking for a fair and competitive salary that reflects my experience an...read more
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Discussion about Industry vs agriculture

Q1. About Projects and pumps
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Q2. About Wagon tipper and mechanism
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Easy technical and aptitude questions. They follow examveda.

Peer pressure boon or bane

Q1. What is Bayer process
Ans. 
The Bayer process is a method for refining bauxite into alumina, which is the precursor to aluminum production.
• The Bayer process involves crushing and grinding bauxite ore, then mixing it with sodium hydroxide at high temperatures to dissolve the alumina content.

• The resulting solution is filtered to remove impurities, then cooled and seeded to promote the precipitation of pure alumina hydrate.

• The alumina hydrate is the...read more
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Q2. What, according to you, most important dimensionless number and why
Ans. 
The most important dimensionless number is the Reynolds number, as it determines the flow regime of a fluid and is crucial in fluid dynamics.
• Reynolds number is used to predict flow patterns in different fluid flow situations

• It is defined as the ratio of inertial forces to viscous forces in a fluid flow

• Reynolds number helps in determining whether the flow is laminar, turbulent, or transitional

• It is widely used in engine...read more
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Q3. One equation that correlates HT and Fluid flow
Ans. 
The equation that correlates HT and fluid flow is the Darcy-Weisbach equation.
• The Darcy-Weisbach equation relates the head loss due to friction in a pipe to the velocity and diameter of the pipe, as well as the friction factor.

• It is commonly used in fluid mechanics and hydraulic engineering to calculate pressure drop in pipes.

• The equation is expressed as: hL = f * (L/D) * (V^2/2g), where hL is the head loss, f is the f...read more
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Q4. Systems in thermodynamics
Ans. 
Systems in thermodynamics refer to the specific region of space or a quantity of matter under study.
• A system can be open, closed, or isolated based on the exchange of matter and energy with its surroundings.

• Examples of systems include a gas in a container, a piston-cylinder assembly, or a steam turbine.

• Thermodynamic properties such as temperature, pressure, and volume are used to describe the state of a system.

• The firs...read more
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Q5. What is dry steam and wet steam
Ans. 
Dry steam has low moisture content and high temperature, while wet steam has high moisture content and lower temperature.
• Dry steam is produced when water is heated to its boiling point and vaporizes without any liquid water droplets present.

• Wet steam contains water droplets suspended in the steam, resulting in a lower temperature compared to dry steam.

• Dry steam is commonly used in steam turbines for power generation, w...read more
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