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Question 1. Briefly explain the following concepts related to exposure thresholds: time-weighted average, short-term exposure limit, exposure ceiling, and biological exposure indices.(Your response must be at least 200 words in length.) Question 2. What is the difference between noise and sound? Describe the three main types of noise-control strategies, and give at least two examples of each type. (Your response must be at least 200 words in length.)
Determine the maximum work that can be extracted from a pond containing 105 kg of water at 350 K when the temperature of the surroundings is 300 K. Notice that the temperature of water in the pond will be gradually decreasing as energy is extracte..
aat t1000 k caclulate kp and delta gsubstance mole co2 27.1 h227.1 co 22.9 h2o 22.9b given the answer to part a and
steam at t1600 degrees c p115 mpa enters a reversible and adiabatic turbine at a flow rate of 300 kgs. the steam exits
in a single-flash geothermal power plant geothermal water enters the flash chamber a throttling valve at 230 dgrees c
airplane takeoff from an aircraft carrier is assisted by a steam driven pistoncylinder device with an average pressure
a if the pressure in the tank is 1.5 bar and atmospheric pressure is 1 bar determine l in m for water with density of
for each of the following cases determine the internal energy and the enthalpy using the compressed liquid tables and
Air is compressed from 23 C to 100 kPa to 500 kPa in a gas turbine. The air is heated to 520 C in the regenerator and then to 1200 C before entering the turbine. The isentropic efficiency is 100% for both the compressor and turbine. Please draw and l..
An Ocean Thermal Energy Conversion (OTEC) power plant built in Hawaii in 1987 was designed to operate between the temperature limits of 86°F at the ocean surface and 41°F at a depth of 2100 ft.
A solution in which the analytical concentrations of Cu2+ amd A2- are 2.15 ×10-4 M and 4.00×10-4 M, respectively, has an absorbance of .654 when measured under the same conditions. Use this information to calculate the formation constant kt for th..
a stationary gas turbine power plant operates on a simple ideal brayton cycle with air as the working fluid. the air
consider the flow of air over a vertical flat plate at a low velocity u1 in ambient pressure p1. the plate surface
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