When working with ammonia, what safety equipment must be available?
What will be an ideal response?
Gloves, safety glasses, and a self-contained breathing apparatus for each worker.
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Which of the following is a disadvantage of a solenoid actuator when compared with a piezo actuator?
A. mechanical movement is limited B. are more bulky in size C. slow response D. high cost
How is NPSH calculated with regards to the performance pump curve?
A. NPSH is the maximum flow rate at zero flow. B. NPSH is the ratio of the liquid horsepower to the brake horsepower. C. NPSH is normally based on evaluation with water. D. NPSH is calculated using atmospheric pressure, vapor pressure, liquid height, and pressure drop.
One-thousand moles of an ideal gas is compressed isothermally at 400 K from 100 kPa to 1000 kPa in a piston-cylinder arrangement. Calculate the entropy change of the gas, the entropy change of the surroundings and the total entropy change of the process for the following two cases:
(a) The process is mechanically reversible and the surroundings consist of a heat reservoir at 400 K. (b) The process is mechanically reversible and the surroundings consist of a heat reservoir at 300 K.
How can shading be produced?
What will be an ideal response?