What is/are the source(s) of hydraulic fluid pressure that operates typical brake boosters?
A. power steering pump
B. dedicated hydraulic pump
C. reserve electric motor and pump
D. all of the above
Answer: D
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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?
The ignition system needs the most maintenance
Indicate whether the statement is true or false.
The most widely applied use of genetic engineering is in which area?
a. Animal production c. Human reproduction b. Crop production d. Mineral synthesis
A cylindrical solid shape is shortened to save space in the drawing. Which of the following is (are) true?
A. The cylinder must have a constant shape throughout the entire length and cylindrical break lines are used. B. A short, thick, slightly irregular break line is drawn to show that the cylinder has been shortened. C. A jagged, thick, very irregular break line is drawn to show that the cylinder has been shortened. D. both a and b E. none of the above