Amara Raja Group Executive - Sales & Marketing Interview Questions and Answers

I am a recent graduate with a degree in Mechanical Engineering and a passion for problem-solving and innovation.

• Graduated with a degree in Mechanical Engineering

• Passionate about problem-solving and innovation

• Completed internships at XYZ Company and ABC Company

• Led a team project on designing a new prototype for a car engine

Vapour compression refrigeration cycle is a process used in refrigeration systems to remove heat from a space and maintain a cool temperature.

• Vapour compression refrigeration cycle is based on the principle of phase change of a refrigerant.

• The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The refrigerant enters the compressor as a low-pressure vapor and is compressed to ...read more

The differential is a device that allows the wheels of a vehicle to rotate at different speeds while maintaining traction.

• The differential is located in the center of the axle and is connected to the drive shaft.

• It consists of a set of gears that distribute power from the engine to the wheels.

• The main function of the differential is to allow the wheels to rotate at different speeds, especially when turning.

• When a vehic...read more

The propeller shaft is a component in an automobile that transmits power from the transmission to the differential.

• It is a long, cylindrical shaft made of steel or aluminum.

• It connects the transmission output shaft to the differential input shaft.

• It allows the power generated by the engine to be transferred to the wheels.

• It is commonly used in rear-wheel drive vehicles.

• In four-wheel drive vehicles, there are usually tw...read more

The number of joints in a propeller shaft depends on the design and type of the shaft.

• The number of joints can vary depending on the length and complexity of the propeller shaft.

• A typical propeller shaft may have one or two joints.

• Some propeller shafts may have more joints if they are designed for flexibility or to accommodate changes in length.

• The joints in a propeller shaft are usually universal joints or constant ve...read more

Universal joints are mechanical devices used to connect two shafts that are not in line with each other.

• Universal joints are also known as U-joints or Cardan joints.

• They are commonly used in automotive applications to transmit power from the engine to the wheels.

• Universal joints allow for the transmission of rotational motion at different angles and speeds.

• They consist of a cross-shaped component with needle bearings a...read more

The gears used in a differential are bevel gears and pinion gears.

• Bevel gears are used to transfer power from the drive shaft to the differential housing.

• Pinion gears are used to transfer power from the differential housing to the axle shafts.

• The bevel gears and pinion gears work together to allow the wheels to rotate at different speeds while maintaining power distribution.

• The bevel gears are typically spiral bevel ge...read more

The boiling point of a substance decreases with decreasing pressure in a vacuum.

• Boiling point is the temperature at which a substance changes from a liquid to a gas.

• In a vacuum, the pressure is significantly lower than atmospheric pressure.

• Lower pressure in a vacuum reduces the intermolecular forces holding the substance together.

• As a result, less energy is required to overcome these forces and the boiling point decrea...read more

One tonnage of refrigeration is equal to approximately 3.5169 kilowatts (KW).

• One ton of refrigeration is the amount of heat required to melt one ton (2000 pounds) of ice in 24 hours.

• It is a unit used to measure the cooling capacity of refrigeration systems.

• The conversion factor from tonnage of refrigeration to KW is approximately 3.5169.

• To convert tonnage of refrigeration to KW, multiply the tonnage by 3.5169.

There are several types of heat exchangers, including shell and tube, plate, and finned tube heat exchangers.

• Shell and tube heat exchangers consist of a shell with multiple tubes inside, allowing for efficient heat transfer.

• Plate heat exchangers use a series of plates to separate the hot and cold fluids, maximizing heat transfer surface area.

• Finned tube heat exchangers have fins attached to the tubes, increasing the he...read more

There are 2.54 centimeters in one inch.

• 1 inch is equal to 2.54 centimeters.

• The conversion factor between inches and centimeters is 2.54.

• To convert inches to centimeters, multiply the number of inches by 2.54.

• To convert centimeters to inches, divide the number of centimeters by 2.54.

The unit operations used in the plant during summer training.

• Distillation

• Filtration

• Crystallization

• Extraction

• Drying

• Mixing

Heat transfer coefficient changes with baffle spacing in heat exchangers. Other important factors include fluid properties, flow rate, and surface roughness.

• Heat transfer coefficient increases with decreasing baffle spacing

• Fluid properties such as viscosity and thermal conductivity affect heat transfer

• Higher flow rates can increase heat transfer coefficient

• Surface roughness can affect heat transfer by creating turbulen

Viscosity Index of lube measures its resistance to change in viscosity with temperature.

• Viscosity Index (VI) is an important property of lubricating oils.

• It measures the oil's ability to maintain its viscosity under different temperature conditions.

• Higher VI means the oil's viscosity changes less with temperature, indicating better performance.

• VI is calculated using kinematic viscosity measurements at two different tem...read more

Different kinds of distillation include simple distillation, fractional distillation, steam distillation, and vacuum distillation.

• Simple distillation is used to separate liquids with different boiling points.

• Fractional distillation is used to separate liquids with similar boiling points.

• Steam distillation is used to extract essential oils from plants.

• Vacuum distillation is used to separate liquids with high boiling poi...read more

Factors to consider for checking evaporator efficiency

• Temperature difference between inlet and outlet air

• Airflow rate

• Refrigerant flow rate

• Frost buildup on evaporator coils

• Cleanliness of evaporator coils

• Type of refrigerant used

I am a highly motivated individual with a passion for learning and a strong work ethic.

• I have a Bachelor's degree in Computer Science

• I have completed several internships in software development

• I am proficient in multiple programming languages including Java and Python

• I enjoy working in a team environment and collaborating on projects

• I am always looking for new challenges and opportunities to grow

Gujarat offers a rich cultural heritage, diverse cuisine, and a thriving business environment.

• Gujarat is home to several UNESCO World Heritage Sites such as the Rani ki Vav stepwell and the Champaner-Pavagadh Archaeological Park.

• The state is known for its delicious cuisine, including dishes like dhokla, thepla, and fafda.

• Gujarat has a strong economy, with a focus on industries such as textiles, chemicals, and pharmaceu...read more

Yes, I believe I can inspire others through my actions and words.

• I have a positive attitude and outlook on life

• I am passionate about my work and hobbies

• I enjoy helping others and sharing my knowledge and experiences

• I have received positive feedback and recognition for my leadership and motivational skills

I have the skills, experience, and passion to excel in this role.

• I have a proven track record of success in similar roles.

• I am highly motivated and dedicated to achieving results.

• I have excellent communication and interpersonal skills.

• I am a quick learner and adaptable to new situations.

• I am passionate about this industry and eager to contribute my expertise.

• I am confident that I can make a valuable contribution to you

Gibbs free energy is called free energy because it is the energy available to do work at constant temperature and pressure.

• Gibbs free energy is the maximum amount of work that can be obtained from a system at constant temperature and pressure.

• It takes into account both the enthalpy and entropy of a system.

• If the Gibbs free energy is negative, the reaction is spontaneous and can do work.

• Examples include the combustion o...read more

Maxwell's equations describe the behavior of electromagnetic fields.

• There are four equations: Gauss's law, Gauss's law for magnetism, Faraday's law, and Ampere's law with Maxwell's addition.

• Together, these equations explain how electric and magnetic fields interact and propagate through space.

• Maxwell's equations are fundamental to the study of electromagnetism and have many practical applications, such as in the design...read more

Designing of Distillation Column

• Determine the desired separation

• Select the appropriate column type

• Calculate the number of theoretical plates

• Determine the feed location and reflux ratio

• Design the reboiler and condenser

• Select appropriate materials of construction

• Consider safety and environmental factors