10+ QpiAI Interview Questions and Answers

The ratio of cement, sand, and aggregate in M20 concrete is 1:1.5:3.

• The ratio of cement to sand to aggregate is 1:1.5:3 in M20 concrete.

• For every 1 part of cement, 1.5 parts of sand and 3 parts of aggregate are used.

• This ratio ensures the desired strength and workability of the concrete mix.

AC motors have a rotor and stator that are visibly different, while DC motors have a commutator and brushes.

• Look for a rotor and stator in an AC motor, which are visibly different in size and shape.

• Check for a commutator and brushes in a DC motor, which are not present in AC motors.

• AC motors typically have a simpler design compared to DC motors, which have more components like brushes and a commutator.

Electricity is produced in a generator through electromagnetic induction. Faraday's law of electromagnetic induction explains this process.

• Electricity is produced in a generator through the process of electromagnetic induction.

• When a conductor is moved through a magnetic field, or a magnetic field is moved around a conductor, it creates an electric current.

• This current is then collected and converted into usable electricity.

• Faraday's law of electromagnetic induction states th...read more

Immediate measures will be taken to ensure the safety of employees and minimize the impact on production.

• Activate the emergency response plan

• Ensure the safety of employees and evacuate if necessary

• Communicate with the striking employees to understand their demands

• Negotiate with the striking employees to reach a resolution

• Minimize the impact on production by reallocating resources or outsourcing work

• Document the incident and take steps to prevent future strikes

A thermal power plant generates electricity by converting heat energy into electrical energy through the use of steam turbines.

• Thermal power plants burn fossil fuels such as coal, natural gas, or oil to heat water and produce steam.

• The steam is then used to drive a turbine connected to a generator, which produces electricity.

• The waste heat from the turbine is usually released into the environment through cooling towers or other methods.

• Thermal power plants require large amoun...read more

Electrical motors run on the principle of electromagnetic induction.

• Electrical motors convert electrical energy into mechanical energy through electromagnetic induction

• They work based on Faraday's law of electromagnetic induction

• Examples include AC motors, DC motors, and brushless motors

Immediate action will be taken to ensure the safety of all employees and visitors.

• The individual will be immediately detained and disarmed by security personnel.

• Law enforcement will be notified and the individual will be handed over to them.

• An investigation will be conducted to determine the motive and any potential threats.

• Additional security measures may be implemented to prevent future incidents.

• All employees and visitors will be informed of the incident and any necessary ...read more

Conductors diameter can be calculated using the formula: diameter = sqrt((4 * area) / pi)

• Calculate the area of the conductor (usually circular) using the formula: area = pi * (radius^2)

• Determine the radius of the conductor

• Use the formula: diameter = sqrt((4 * area) / pi) to calculate the diameter

Thermal power plants generate electricity by converting heat energy into electrical energy.

• Fuel (coal, oil, gas) is burned to produce heat

• Heat is used to boil water and produce steam

• Steam drives a turbine connected to a generator, producing electricity

• Cooling water is used to condense the steam back into water for reuse

• Electricity is then transmitted through power lines to consumers

The bled meter measures the amount of fluid that has been bled off from a system.

• The bled meter is used to monitor the bleeding of fluid from a system.

• It helps in determining the amount of fluid that has been removed from the system.

• The bled meter readings are important for maintaining the proper fluid levels in the system.

Oil is used in transformers for insulation and cooling purposes.

• Oil provides insulation to prevent electrical breakdown

• Oil helps in dissipating heat generated during operation

• Mineral oil is commonly used in transformers for its dielectric properties

• Transformer oil also helps in protecting the transformer from moisture and oxidation

Current is the flow of electric charge in a circuit.

• Current is measured in Amperes (A).

• It is the rate of flow of electric charge through a conductor.

• Current flows from the positive terminal to the negative terminal in a circuit.

• There are two types of current - direct current (DC) and alternating current (AC).

Rankine cycle is a thermodynamic cycle used in steam power plants to generate electricity.

• Rankine cycle involves four processes: compression, heating, expansion, and cooling.

• Steam is compressed in a pump, heated in a boiler, expanded in a turbine, and cooled in a condenser.

• The cycle aims to maximize the efficiency of converting heat into mechanical work.

• It is commonly used in power plants to generate electricity.

• Efficiency of Rankine cycle can be improved by increasing the te...read more

TG rolling procedure and bed material specification are important for Operations Engineer.

• TG rolling procedure refers to the process of rolling the turbine generator to ensure smooth operation.

• Bed material specification refers to the type and quality of material used in the fluidized bed boiler.

• Both are crucial for efficient and safe operation of power plants.

• TG rolling procedure involves checking alignment, clearance, and bearing temperature.

• Bed material specification includ...read more

A wind power plant motor is a device that converts wind energy into electrical energy.

• Wind power plants use turbines to capture the kinetic energy of the wind.

• The wind turns the blades of the turbine, which are connected to a generator.

• The generator converts the rotational energy into electrical energy.

• The electrical energy is then transmitted through power lines for distribution.

• Wind power plants can have different types of motors, such as induction motors or synchronous gen...read more

Wind power plant maintenance involves regular inspections, repairs, and servicing to ensure optimal performance and longevity.

• Regular inspections are conducted to identify any issues or potential problems.

• Repairs and replacements are carried out as needed to fix any faulty components.

• Servicing includes cleaning, lubricating, and adjusting various parts of the wind turbines.

• Maintenance also involves monitoring and analyzing data to optimize performance and efficiency.

• Examples ...read more

A wind power plant is a facility that harnesses the power of wind to generate electricity.

• Wind power plants consist of wind turbines that convert the kinetic energy of wind into electrical energy.

• The turbines are typically mounted on tall towers to capture the stronger and more consistent winds at higher altitudes.

• The blades of the turbine rotate when the wind blows, which in turn rotates a generator to produce electricity.

• The electricity generated by the wind power plant is ...read more