Technician a says that one reason to use several small valves instead of two larger valves is to increase the size of the open port when the valves are open. technician b says that the area of two small valves added together is often smaller than the area of one larger valve. who is right? a. both technicians a and b b. technician b only c. neither technician a nor b d. technician a only

solution:

yes it is a true statement that if we use several smaller valves instead of two larger valve size of open port increases.

but it totally depends on which kind of valves are being used.

also, it is   true that when we add area of two smaller valves it is smaller than area of one larger valve. consider two circles having radii 4 cm and one having radii 8 cm.the total area of two smaller circle will be 32π and area of larger circle will be 64 π.

option a.   both technicians a and b   are right.