Which of the following statements is true for cascade method which is used to draw a pneumatic circuit?

signal processing valves are connected in parallel

when the number of signal processing valves are greater than 4, the signals are strong

cascade method does not consider the cost factor

Which of the following statements is true for cascade method which is

1.	Which of the following statements is true for cascade method which is used to draw a pneumatic circuit?
A.	signal processing valves are connected in parallel
B.	when the number of signal processing valves are greater than 4, the signals are strong
C.	cascade method does not consider the cost factor
D.	all of the above
Answer» D. all of the above