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Actual work refers to the physical or mental tasks that an individual performs in order to complete a job or project. This can include activities such as designing, creating, analyzing, or delivering a product or service. Actual work is essential for achieving goals and producing results in the workplace.

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1y ago

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How is a machines mechanical efficiency is calulated?

Mechanical efficiency of a machine is calculated by dividing the actual output of work by the theoretical output of work, and then multiplying by 100 to express it as a percentage. It is expressed as: efficiency = (Actual output / Theoretical output) * 100%. A higher mechanical efficiency indicates that the machine is operating more effectively with less energy loss.


What is the significance of isentropic efficiency in thermodynamics and how is it calculated?

Isentropic efficiency is important in thermodynamics because it measures how well a process can convert energy without any heat loss. It is calculated by comparing the actual work output of a system to the maximum work output that could be achieved in an ideal, reversible process. The formula for isentropic efficiency is: (actual work output / ideal work output) 100.


Enables the Government to see how much work was planned to be done compared to how much work was actually done?

Earned value management is a project management technique that enables the government to measure project performance by comparing planned work (budgeted cost of work scheduled) with actual work completed (budgeted cost of work performed). This allows the government to assess if the project is on track, over budget, or behind schedule.


What is actual mechanical advantage in physics?

Actual mechanical advantage in physics is the ratio of the output force to the input force in a mechanical system, taking into account factors such as friction and inefficiencies in the system. It is a measure of how much a machine multiplies the force applied to it, and is always less than the ideal mechanical advantage due to these losses.


What is the back work ratio formula and how is it used in engineering applications?

The back work ratio formula is used in engineering to measure the efficiency of a turbine or compressor. It is calculated by dividing the actual work output by the work input. A high back work ratio indicates that a significant portion of the work input is being used to overcome losses, while a low ratio indicates better efficiency. This formula helps engineers optimize the performance of turbines and compressors in various applications, such as power generation and HVAC systems.