20+ BDO India LLP Interview Questions and Answers

Parameters to consider when building a cooling tower

• Size and capacity requirements

• Location and environmental factors

• Design and construction materials

• Water source and quality

• Cooling tower type and configuration

• Safety and regulatory compliance

Parameters considered while building a boiler

• Boiler type and size

• Fuel type and availability

• Operating pressure and temperature

• Efficiency and emissions

• Safety features and regulations

• Maintenance requirements

• Cost and budget constraints

A pump is a mechanical device used to move fluids from one place to another. There are various types of pumps.

• Pumps are used in various industries such as oil and gas, water treatment, and manufacturing.

• Types of pumps include centrifugal pumps, reciprocating pumps, and rotary pumps.

• Centrifugal pumps are commonly used for low viscosity fluids, while reciprocating pumps are suitable for high-pressure applications.

• Examples of pumps include water pumps, fuel pumps, and air compre...read more

Boilers are vessels that heat water or other fluids to generate steam or hot water for various applications.

• Boilers are used in industries, commercial buildings, and residential homes.

• They work by transferring heat from a fuel source to water or other fluids.

• The steam or hot water produced by boilers can be used for heating, power generation, or process applications.

• There are different types of boilers, including fire-tube boilers, water-tube boilers, and electric boilers.

• Fir...read more

Questions related to pumps, boilers, and refrigeration cycle.

• Types of pumps include centrifugal, positive displacement, and axial flow pumps.

• Mechanical seals are commonly used to stop leakage in pumps.

• Types of boilers include fire-tube, water-tube, and electric boilers.

• Boiler efficiency can be calculated using the formula: efficiency = (heat output / fuel input) x 100%.

• Vapour compression refrigeration cycle is a common refrigeration cycle used in air conditioning and refriger...read more

Answers to various chemistry-related questions including pH, exothermic and endothermic reactions, Grignard reaction, normality, molarity, and molality.

• pH is a measure of the acidity or alkalinity of a solution, with a range of 0-14.

• Exothermic reactions release heat energy, while endothermic reactions absorb heat energy.

• Grignard reaction involves the addition of an organomagnesium compound to a carbonyl group.

• Normality is the concentration of a solution expressed as the equiv...read more

The formula of benzene is C6H6.

• The molecular formula of benzene is C6H6.

• It consists of a ring of six carbon atoms, each bonded to one hydrogen atom.

• The structure of benzene is often represented as a hexagon with a circle inside to show delocalized electrons.

• Benzene is a common organic compound used in various industries.

A cooling tower is a device that removes heat from a process or building by transferring it to the atmosphere.

• Cooling towers are commonly used in industrial processes and HVAC systems.

• They work by evaporating a small portion of the water being circulated, which removes heat from the remaining water.

• The cooled water is then recirculated back into the system.

• Cooling towers can be classified into different types, such as natural draft, forced draft, and induced draft towers.

• Exam...read more

A boiler is a closed vessel used to generate steam. A cooling tower is a heat rejection device. A pump is a device used to move fluids.

• Boiler is used to generate steam by heating water.

• Cooling tower is used to reject heat from a process.

• Pump is used to move fluids from one place to another.

• Types of pump include centrifugal, positive displacement, and axial flow pumps.

Effective coordination with relevant vendors is crucial for smooth operations.

• Establish clear communication channels with vendors

• Maintain regular contact to stay updated on orders and deliveries

• Address any issues or concerns promptly to avoid delays

• Negotiate terms and agreements to ensure mutual benefit

• Provide feedback to vendors for continuous improvement

• Example: Setting up regular meetings with key vendors to discuss upcoming orders and address any potential issues

Benzoic acid can be prepared by oxidizing toluene or benzyl alcohol.

• Prepare a mixture of toluene or benzyl alcohol with potassium permanganate or chromic acid.

• Heat the mixture under reflux to facilitate oxidation.

• After completion of the reaction, cool the mixture and extract the benzoic acid using a suitable solvent.

• Purify the extracted benzoic acid through recrystallization.

• Alternatively, benzoic acid can also be prepared by hydrolyzing benzaldehyde with a strong base.

Motor current formulas can be found using basic electrical principles and motor specifications.

• Use Ohm's Law (I = V / R) to calculate current based on voltage and resistance.

• For AC motors, use the formula I = P / (sqrt(3) * V * cos(theta)), where P is power, V is voltage, and theta is the power factor angle.

• Refer to motor datasheets for specific current ratings and calculations.

• Consider factors like efficiency, power factor, and starting current when determining motor current...read more

Production requests are processed by reviewing the request, checking inventory levels, preparing materials, and coordinating with production team.

• Review the production request to understand the requirements

• Check inventory levels to ensure availability of materials

• Prepare materials needed for production

• Coordinate with the production team to schedule and fulfill the request

PH stands for potential of hydrogen. It is a measure of the acidity or alkalinity of a solution.

• PH is a scale ranging from 0 to 14.

• A pH of 7 is considered neutral, below 7 is acidic, and above 7 is alkaline.

• The pH of common substances: lemon juice (2), water (7), baking soda (9).

Toluene can be prepared by the catalytic reforming of petroleum naphtha.

• Toluene is commonly produced by the catalytic reforming of petroleum naphtha.

• The process involves heating the naphtha to high temperatures in the presence of a catalyst.

• The resulting mixture is then distilled to separate out the toluene.

• Another method involves the methylation of benzene using methanol in the presence of a catalyst.

Overall standard enthalpy change delta H is a measure of the heat energy released or absorbed during a chemical reaction.

• Overall standard enthalpy change delta H is denoted by the symbol delta H.

• It represents the difference in enthalpy between the products and reactants in a chemical reaction.

• A negative delta H indicates an exothermic reaction, where heat is released.

• A positive delta H indicates an endothermic reaction, where heat is absorbed.

Reactors are vessels designed to contain chemical reactions. There are various types such as batch, continuous, stirred tank, and plug flow reactors.

• Reactors are vessels where chemical reactions take place

• Types of reactors include batch, continuous, stirred tank, and plug flow reactors

• Batch reactors are used for small-scale production

• Continuous reactors operate continuously with a steady flow of reactants

• Stirred tank reactors have an agitator to mix the reactants

• Plug flow rea...read more

Star delta starter is a method used to reduce the starting current of induction motors.

• Star delta starter is used for starting induction motors in applications where the starting current needs to be limited.

• In star connection, the motor windings are connected in a star configuration during starting to reduce the voltage across each winding.

• After a certain time, the windings are switched to a delta configuration to run the motor at full speed.

• This method helps in reducing the ...read more

Protection in a transformer involves measures to prevent damage from overcurrent, overvoltage, and overheating.

• Use fuses or circuit breakers to protect against overcurrent

• Install surge arresters to protect against overvoltage

• Use temperature sensors and cooling systems to prevent overheating

• Implement differential protection to detect internal faults

• Regular maintenance and testing to ensure proper functioning

Faults in a transformer can include short circuits, open circuits, overheating, and insulation breakdown.

• Short circuits can occur due to insulation failure or winding damage.

• Open circuits can result from broken connections or faulty windings.

• Overheating may be caused by overloading or poor cooling.

• Insulation breakdown can lead to arcing and short circuits.