Right Answer: A Ton of Refrigeration is a unit of measurement that represents the cooling capacity of a refrigeration system. It is defined as the amount of heat required to melt one ton (2,000 pounds) of ice in 24 hours, which is equivalent to 12,000 British Thermal Units (BTUs) per hour.
Right Answer: To determine utilities sizing for steam, chilled water, and RT (reclaimed treated) water, you need to conduct a detailed analysis based on the following factors:
1. **Steam**: Calculate the total heat load required for processes, considering equipment specifications and operational hours. Use the formula:
[
text{Steam Required (lbs/hr)} = frac{text{Total Heat Load (BTU/hr)}}{text{Enthalpy of Steam (BTU/lb)}}
]
2. **Chilled Water**: Assess the cooling load by evaluating the heat gain from equipment, lighting, and occupancy. Use the formula:
[
text{Chilled Water Required (GPM)} = frac{text{Cooling Load (BTU/hr)}}{500 times Delta T}
]
where (Delta T) is the temperature difference (in °F) across the chiller.
Site selection is the process of choosing the best location for a business, factory, or project. It depends on factors like cost, accessibility, resources, transport, and local laws.
Right Answer: Molarity is the number of moles of solute per liter of solution (mol/L). Normality is the number of equivalents of solute per liter of solution (eq/L). Molality is the number of moles of solute per kilogram of solvent (mol/kg).
Right Answer: The atmospheric pressure at sea level is typically around 1013.25 hPa (hectopascals) or 1 atm (atmosphere). However, it can vary based on altitude and weather conditions. Please check a local weather source for the exact pressure at your specific location.
Ques:- What is the diatom column if we double the feed flow rate ?
Asked In :-
Right Answer: If you double the feed flow rate, the diatom column will require a larger surface area or a longer column to maintain effective filtration and separation, as the increased flow can lead to reduced contact time and potential clogging.
Right Answer: Site execution involves the implementation of construction plans on-site, ensuring that work is carried out according to design specifications, safety standards, and project timelines. It includes managing resources, coordinating with subcontractors, monitoring progress, and maintaining quality control throughout the construction process.
Right Answer: A turbine is a mechanical device that converts fluid energy (from water, steam, gas, or air) into mechanical energy through the rotation of its rotor. The rotor is designed with blades that are shaped to efficiently capture the energy from the fluid flow, optimizing the angle and curvature to maximize performance and minimize losses. The design also considers factors like material strength, weight, and aerodynamics to ensure durability and efficiency.
Right Answer: The various parts of a turbine rotor include:
1. **Rotor Blades**: These are the moving blades that convert fluid energy into mechanical energy.
2. **Rotor Disc**: The central part that holds the blades and transmits the rotational force.
3. **Shaft**: Connects the rotor to the generator or other machinery, transferring the rotational energy.
4. **Seal Rings**: Prevent leakage of working fluid and maintain pressure.
The casing parts include:
1. **Casing Shell**: The outer structure that houses the rotor and provides support.
2. **Inlet and Outlet Nozzles**: Allow the working fluid to enter and exit the turbine.
3. **Diffuser**: Slows down the fluid and converts kinetic energy into pressure before it exits.
Moving blades work by the fluid passing over them, creating lift due to pressure differences, which causes the rotor to spin.
Right Answer: The criteria for the selection of an impeller include:
1. **Fluid Properties**: Viscosity, density, and temperature of the fluid.
2. **Flow Rate**: Required flow rate and pressure head.
3. **Pump Type**: Compatibility with the type of pump (centrifugal, positive displacement, etc.).
4. **Operating Conditions**: Temperature, pressure, and environment.
5. **Efficiency**: Desired hydraulic efficiency and performance characteristics.
Types of impellers include:
1. **Open Impeller**: No shroud, suitable for fluids with solids.
2. **Closed Impeller**: Shrouded on both sides, better efficiency for clean fluids.
3. **Semi-Open Impeller**: Partially shrouded, used for a range of applications.
4. **Mixed Flow Impeller**: Combines axial and radial flow, used in specific applications.
5. **Radial Flow Impeller**: Moves fluid outward, commonly used in
Right Answer: I would first communicate with the contractor to identify the issues and understand their perspective. Then, I would review the drawings and specifications with them to clarify expectations. If the problem persists, I would document the non-compliance, issue a formal notice, and work with the project team to develop a corrective action plan. If necessary, I would escalate the issue to higher management or consider alternative actions as per the contract terms.
Right Answer: No, it is not advisable to put all the reinforcing steel at the top of the beam because beams primarily experience bending moments that cause tension at the bottom and compression at the top. Placing all the steel at the top would not effectively resist the tensile forces, leading to structural failure.
