Provide some suggestions as to how the following processes could have lower amounts of irreversibility:
(a) liquid water flowing through a pipe;
(b) steam expanding through a turbine;
(c) the tire of an automobile rolling down a road.
What will be an ideal response?
(a) Smooth the walls of the pipe, and minimize any bends in the pipe. Insulate the pipe.
(b) Insulate the turbine, minimize the amount of liquid in the turbine, smooth turbine blades.
(c) Smooth the road and the tire to reduce friction.
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According to the National Electrical Code®, lead-in conductors for transmitting stations must be mounted at least ________ clear of the surface of the building.
A. 3 inches B. 12 inches C. 3 ft. D. 6 ft.
Fifth wheel height is defined as:
A. The distance from fifth wheel plate to the roof of the trailer when coupled B. The distance from ground level to the fifth wheel top plate C. The distance from ground level to the base of the fifth wheel D. The distance from the base of the fifth wheel to the fifth wheel top plate
Round 6.25 to the nearest tenth
What will be an ideal response?
On a residential construction site, what is commonly called a "saw pole"?
A) Service utility pole B) Local utility hookup C) Permanent power source D) Temporary power pole