403 - Chapter 10 & 11

Question 1

Types of Pressure Control Valves

Answer 1

Pressure Relief Valve
Pressure Reducing Valve
Sequence Valve
Counterbalance Valve
Brake Valve

Question 2

Pressure Relief Valve

Answer 2

Relieves pressure when it exceeds a certain amount

Question 3

Pressure Reducing Valve

Answer 3

reduces pressure

Question 4

Sequence Valves

Answer 4

makes sure things happen in order

Question 5

Counterbalance valves

Answer 5

keeps control of a cylinder when gravity acts upon it

Question 6

Brake valve

Answer 6

sefety approach to stop a load quickly

Question 7

Three factors that affect flow rate through an orifice:

Answer 7

Pressure Drop
Fluid temp/viscosity
Orifice size

Question 8

Flow control methods:

Answer 8

Meter-In
Meter-Out
Bleeding

Question 9

Meter-In

Answer 9

flow control valve is between pump and actuator.

Doesn’t protect against a runaway.

Question 10

Meter-Out

Answer 10

flow control is on outlet side of actuator to control flow coming out.
Used if a load tends to runaway.