The recommended minimum pressure for water coming from a fire hydrant is:
A. 115 psi.
B. 80 psi.
C. 50 psi.
D 20 psi.
Answer: D 20 psi.
You might also like to view...
Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on.
A vat holds 2.25(10³) kg of a 22.0 percent solution of ethylene glycol and water. How much must be drained from the tank and replaced with an 85.0 percent ethylene glycol solution to obtain a 33.0 percent concentrate? Assume percentage values are based on mass.
The compressor in a refrigeration system ____.
A. raises the boiling point of the refrigerant B. pumps the refrigerant throughout the system C. Both a and b. D. None of the above.
Referring to Fig. 4.91, use source transformation to determine the current and power absorbed by the 8-? resistor.
 FIGURE 1.png)
Which of these functions is possible on a 74194 Universal Shift Register?
A) It can be a Johnson or Ring counter. B) It can shift or count. C) It can shift left or right. D) It can count up or down.