10+ Sree Ji Sai Plast Ind. Interview Questions and Answers

Turbine erection alignment and commissioning procedure involves the process of aligning and commissioning a turbine for optimal performance.

• Turbine erection alignment involves ensuring the turbine is properly aligned with the foundation and other components.

• Commissioning procedure includes testing and verifying the functionality of the turbine.

• Alignment is typically done using laser alignment tools to ensure precise positioning.

• Commissioning involves conducting performance te...read more

The process for calculating HVAC requirements involves determining the heating and cooling loads for a space based on factors like size, insulation, occupancy, and climate.

• Calculate the heating load by considering factors such as the size of the space, insulation levels, number of occupants, and desired temperature.

• Calculate the cooling load by taking into account factors like solar heat gain, equipment heat output, and ventilation requirements.

• Use software tools like Manual ...read more

Control valves regulate fluid flow by adjusting the size of the valve opening.

• Control valves are used in various industries such as oil and gas, chemical, and power generation.

• They work by adjusting the size of the valve opening to regulate the flow of fluid.

• The valve opening is controlled by a signal from a controller, which can be manual or automated.

• Control valves can be classified into different types such as globe, butterfly, and ball valves.

• They can also have different ...read more

A pressure switch is a device that monitors pressure levels and triggers an action when a certain pressure is reached.

• Pressure switch consists of a sensing element, switch mechanism, and a pressure port.

• When the pressure reaches a certain level, the sensing element triggers the switch mechanism to open or close an electrical circuit.

• Pressure switches are used in various applications such as HVAC systems, water pumps, and air compressors.

Bag filters typically use fabric filters, cartridge filters, and HEPA filters.

• Fabric filters are commonly used in bag filters to capture larger particles.

• Cartridge filters are used to capture smaller particles that may pass through fabric filters.

• HEPA filters are high-efficiency filters used for capturing very fine particles and allergens.

• Bag filters may also use activated carbon filters for odor control or gas removal.

DCS is used for continuous processes while PLC is used for discrete processes.

• DCS stands for Distributed Control System and is used for continuous processes like oil refining, power generation, etc.

• PLC stands for Programmable Logic Controller and is used for discrete processes like assembly lines, packaging machines, etc.

• DCS is designed to handle large amounts of data from multiple sources and control multiple processes simultaneously.

• PLC is designed to handle simple logic op...read more

The turbine erection sequence refers to the specific order in which the components of a turbine are assembled and installed.

• The foundation is prepared and the anchor bolts are installed.

• The base frame is positioned and aligned with the anchor bolts.

• The turbine tower sections are lifted and assembled on top of the base frame.

• The nacelle, which houses the turbine's generator and other components, is installed on top of the tower.

• The rotor, including the blades, is mounted on th...read more

Absolute humidity is the measure of water vapor in the air regardless of temperature.

• Absolute humidity is the actual amount of water vapor present in a unit volume of air.

• It is expressed in grams of water vapor per cubic meter of air.

• Unlike relative humidity, absolute humidity does not change with temperature.

• Absolute humidity is an important factor in determining air quality and comfort levels.

• For example, a room with high absolute humidity may feel muggy and uncomfortable.

ESHF stands for Energy Saving Heat Recovery in HVAC systems.

• ESHF is a technology used in HVAC systems to recover waste heat and reuse it to improve energy efficiency.

• It helps in reducing energy consumption and operating costs of HVAC systems.

• Examples of ESHF technologies include heat exchangers, heat pumps, and thermal storage systems.

Time limited projects have fixed deadlines while resource limited projects have fixed resources.

• Time limited projects require completion by a specific deadline.

• Resource limited projects have a fixed amount of resources available.

• Balancing time and resources is crucial for project success.

• Example: A construction project with a deadline to finish before winter (time limited) vs a project with a fixed budget (resource limited).