REFER TO FIGURE 2-11 OF YOUR TEXTBOOK IN ANSWERING  QUESTIONS  1-29  AND  1-30,  WHICH DEAL  WITH  THE  MULTIPLICATION  OF  FORCES IN POWER SYSTEMS. 1-29. Assume that the input piston has an area of 3 square inches with a force of 45 pounds. What is the pressure in the system? 1. 5 psi 2. 10 psi 3. 15 psi 4. 20 psi 1-30. Assume  that  the  output  piston  has a diameter of 6 inches and is subject to a pressure of 10 pounds per square inch. What is the force exerted on the output piston? 1. 28.26 pounds 2. 31.4  pounds 3. 282.6 pounds 4. 314.0 pounds Refer to figure 1A in answering questions 1-31 and 1-32. The rule applying to the action of the piston states that the force acting on the piston surface area from chamber C is proportional  to  the  pressure  in  chamber C times the area of the piston head. The force acting on the piston from chamber D is proportional to the pressure in chamber D times the effective area of the piston head (which is the cross-sectional area of the piston  minus  the  cross-sectional  area  of the piston shaft.) The  piston  surface in chamber C is 25 square inches, and the effective area in chamber D is 20 square inches. 1-31. The pressure in line A is 200 psi. No force is exerted on shaft S. How much pressure will be required in line B to prevent the piston from moving? 1. 160 psi 2. 200 psi 3. 250 psi 4. 500 psi 1-32. Lines A and B are pressurized to 50 psi. How much force is applied  to  each  surface  and  which way will the piston move? 1. C = 1250 pounds, D = 1000 pounds, piston will move to the right 2. C = 1250 pounds, D = 1000 pounds, piston will move to the left 3. C = 1000 pounds, D = 1250 pounds, piston will move to the right 4. C = 1000 pounds, D = 1250 pounds, piston will move to the left 1-33. For two pistons in the same fluid power system,   the distances moved are  inversely  proportional  to  the 1. pressure of the fluid 2. volume of fluid moved 3. expansion of the fluid 4. areas of the pistons Learning Objective: Recognize the  characteristics  and  behavior of fluids in motion,    including methods  for  measuring  volume  and velocity,    and relate the dynamic and  static  factors  involved  with fluid  flow. 1-34. In fluid power syetems using liquids,    the measurement of the volume of fluid flow is made in units  of 1. cubic inches per minute 2. gallons per minute 3. cubic feet per minute 4. cubic yards per minute Figure 1A 4