IDIS 403 CH 6 EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026
In a directional control valve, port __ receives fluid flow from the pump, while port __ returns fluid
flow to the reservoir. - Answers P, T
A __ center position directional control valve allows a hydraulic system to operate with more than
one actuator and with each actuator operating independently of the others. - Answers closed
A __ is an internal component of a directional control valve that is used to control fluid flow and to
connect internal passages and ports. - Answers spool
There are __ different subplate designs - Answers seven
A __ center position directional control valve is used to hold the piston in a cylinder in the desired
position while allowing fluid flow to be directed back to the reservoir without the need to activate a
relief valve. - Answers tandem
__ mounting is a method that uses tubing or threaded pipes that connect directly to a directional
control valve. - Answers In-line
A directional control valve __ is a mechanism that is used to move the position of the spool in a
directional control valve. - Answers actuator
Solenoids alone are not strong enough to move a directional control valve spool when the fluid flow is
greater than __ gpm - Answers 25
In a directional control valve schematic symbol __ the position boxes depict the direction of fluid flow
for each spool position. - Answers internal arrows inside
A hydraulic system that does not have a variable displacement, pressure compensated pump typically
uses a __ centered or __ center position directional control valve so that the hydraulic fluid can be
returned to the reservoir - Answers Open, tandem
__ pressure is the amount of pressure required to slightly unseat a ball or poppet and start to allow
fluid flow through a check valve. - Answers Cracking
A __ is a schematic representation of the direction in which a spool forces fluid to flow. - Answers
position
__ pressure is initiated when the fluid pressure in a fluid power system shifts the spool into the
desired position. - Answers Pilot
A __ check valve allows fluid flow in one direction and restricts fluid flow in the opposite direction
until it receives a pressure signal through a pilot line applied to the port against the piston - Answers
pilot to open
The advantage of a three position, four way directional control valve is that it has __ different center
positions that can preform __ different operations. - Answers four, four
A __ valve allows or prevents fluid flow to specific piping or system actuators - Answers directional
control valve
A __ subplate can be used to mount multiple directional control valves of the same configuration. -
Answers manifold
A __ is an actuator that is used to hold a directional control valve spool in selected positions. -
Answers detent
A __ is the section of a directional control valve that connects a pipe, hose, or tube to the internal
passages of the directional control valve. - Answers port
__ and __ logic valves have two input and a sinle output - Answers AND, Shuttle valve
A __ valve allows fluid flow from the pump port to an actuator port in the spring actuated (normal)
position - Answers normally open
A t-shaped symbol within the schematic symbol of a directional control valve is used to represent a __
- Answers closed port
In a __ centered position directional control valve the cylinder cannot move because there is no fluid
flow to or from the cylinder. - Answers closed
Directional control valves actuators are categorized as __ and __. - Answers manual, automatic
Right angle check valves are are available within a range of flow rates up to __ gpm - Answers 400
__ mounting is a mounting method where a directional control valve is mounted to a plate that
attaches to system piping. - Answers Subplate
The __ centered position is used to hold a cylinder in a stable position while fluid flows back to the
reservoir from the pump under low pressure. - Answers tandem
A __ is a solid state control device that can be programmed and reprogrammed to automatically
control electrical systems in commercial and industrial facilities. - Answers PLC
In a directional control valve, port __ receives fluid flow from the pump, while port __ returns fluid
flow to the reservoir. - Answers P, T
A __ center position directional control valve allows a hydraulic system to operate with more than
one actuator and with each actuator operating independently of the others. - Answers closed
A __ is an internal component of a directional control valve that is used to control fluid flow and to
connect internal passages and ports. - Answers spool
There are __ different subplate designs - Answers seven
A __ center position directional control valve is used to hold the piston in a cylinder in the desired
position while allowing fluid flow to be directed back to the reservoir without the need to activate a
relief valve. - Answers tandem
__ mounting is a method that uses tubing or threaded pipes that connect directly to a directional
control valve. - Answers In-line
A directional control valve __ is a mechanism that is used to move the position of the spool in a
directional control valve. - Answers actuator
Solenoids alone are not strong enough to move a directional control valve spool when the fluid flow is
greater than __ gpm - Answers 25
In a directional control valve schematic symbol __ the position boxes depict the direction of fluid flow
for each spool position. - Answers internal arrows inside
A hydraulic system that does not have a variable displacement, pressure compensated pump typically
uses a __ centered or __ center position directional control valve so that the hydraulic fluid can be
returned to the reservoir - Answers Open, tandem
__ pressure is the amount of pressure required to slightly unseat a ball or poppet and start to allow
fluid flow through a check valve. - Answers Cracking
A __ is a schematic representation of the direction in which a spool forces fluid to flow. - Answers
position
__ pressure is initiated when the fluid pressure in a fluid power system shifts the spool into the
desired position. - Answers Pilot
A __ check valve allows fluid flow in one direction and restricts fluid flow in the opposite direction
until it receives a pressure signal through a pilot line applied to the port against the piston - Answers
pilot to open
The advantage of a three position, four way directional control valve is that it has __ different center
positions that can preform __ different operations. - Answers four, four
A __ valve allows or prevents fluid flow to specific piping or system actuators - Answers directional
control valve
A __ subplate can be used to mount multiple directional control valves of the same configuration. -
Answers manifold
A __ is an actuator that is used to hold a directional control valve spool in selected positions. -
Answers detent
A __ is the section of a directional control valve that connects a pipe, hose, or tube to the internal
passages of the directional control valve. - Answers port
__ and __ logic valves have two input and a sinle output - Answers AND, Shuttle valve
A __ valve allows fluid flow from the pump port to an actuator port in the spring actuated (normal)
position - Answers normally open
A t-shaped symbol within the schematic symbol of a directional control valve is used to represent a __
- Answers closed port
In a __ centered position directional control valve the cylinder cannot move because there is no fluid
flow to or from the cylinder. - Answers closed
Directional control valves actuators are categorized as __ and __. - Answers manual, automatic
Right angle check valves are are available within a range of flow rates up to __ gpm - Answers 400
__ mounting is a mounting method where a directional control valve is mounted to a plate that
attaches to system piping. - Answers Subplate
The __ centered position is used to hold a cylinder in a stable position while fluid flows back to the
reservoir from the pump under low pressure. - Answers tandem
A __ is a solid state control device that can be programmed and reprogrammed to automatically
control electrical systems in commercial and industrial facilities. - Answers PLC
