Chapter 1.1: Introduction to Hydraulic Power

Question 1

reasons for hydraulic systems

Answer 1

1) light weight
2) minimum maintenance required
3) simple inspection
4) ease of installation

Question 1

mechanical advantage formula

Answer 1

F / f = A / a

F & A - output force & area
f & a - input force & area

Question 2

what does hydraulic pumps create?

Answer 2

flow

Question 3

how is pressure created from hydraulics?

Answer 3

resistance to flow creates pressure

Question 4

what determines actuator speed?

Answer 4

flow

Question 5

what determines actuator force?

Answer 5

pressure

Question 6

fluid under pressure takes which path?

Answer 6

the path with least resistance

Question 7

what happens when fluid moves from high pressure to low pressure without performing useful work?

Answer 7

heat is generated

Question 8

fundamental laws of hydraulic

Answer 8

1) hydraulic pump creates flow not pressure
2) resistance to flow creates pressure
3) flow determines actuator speed
4) pressure determines actuator force
5) fluid under pressure takes least resistance path

Question 9

Which component is installed upstream of the case drain filter?

Answer 9

engine driven pump