IDIS 403 CHAPTER 3 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026
The color ______ in a color-coded cutaway diagram indicates intake flow from the reservoir through
the filters to the pump. - Answers green
A ______ valve protects a fluid power system from overpressure by setting a maximum operating
pressure. - Answers relief
The two types of mechanical accumulators include weight- and ______-loaded. - Answers spring
In a hydraulic system, fluid flow is produced by a _____. - Answers pump
_____ is the amount of fluid that passes a given point in one minute. - Answers flow rate
A(n) ____ is a vessel in which fluid is stored under pressure for future release of energy. - Answers
accumulator
_____ is the ability to hold or contain something. - Answers capacity
By controlling, ____ and pressure, hydraulic systems can produce a large amount of work. - Answers
fluid flow
For industrial applications, hydraulic fluid viscosities are typically about ____ SUS at ___C - Answers
150; 40
Pressure _______ is the pressure difference between two points in a fluid power system. - Answers
drop
_____ fluid flow is present in systems where pipes, tubes, and hoses may be too small for the system.
- Answers turbulent
A ____ flow meter has high internal resistance to fluid flow. - Answers weighted
_____ accumulators are typically small and lightweight, with capacities up to 1 gal. - Answers
diaphragm, gas-charged
A(n) ______ diagram is a graphic representation of how devices interconnect within a fluid power
system. - Answers pictorial
On a schematic diagram, _____ lines are used to represent pilot lines. - Answers dashed
A(n) ____ is a device that controls the pressure, direction and/or rate of fluid flow. - Answers valve
____ flow has an erratic, nonlayered pattern - Answers turbulent
_____ pressure is the pressure of compressed gas in an accumulator prior to the admission of
hydraulic fluid. - Answers precharge
A(n) _____ is a metal sleeve used for joining one piece of tubing to another. - Answers ferrule
A(n) ______ diagram is also referred to as a graphic diagram. - Answers schematic
________ flow has smooth and continuous layered pattern - Answers laminar
A(n) _____ is a device that converts low-pressure, high-flow-rate fluid to high-pressure, low-flow-rate
fluid. - Answers intensifier
A(n) _____ allows the force applied on one cylinder to be increased on another system. - Answers
force multiplication system
A(n) _____ measures the flow of hydraulic fluid within a system. - Answers flow meter
_____ is the size of a space or chamber measured in cubic unites - Answers volume
A(n) ______ is a self-contained unit that includes all the components required to create flow, regulate
pressure, and filter hydraulic fluid. - Answers hydraulic power unit
On a schematic diagram, _____ lines are used to represent exhaust or drain lines. - Answers dotted
A(n) _______ is a test instrument used to measure fluid viscosity. - Answers Saybolt viscometer
A(n) _____ is matter composed of atoms and is the smallest particle that a compound can be reduced
to while still possessing the chemical properties of that compound. - Answers molecule
Two categories of accumulators that can be used in hydraulic systems are gas-charged and ________.
- Answers mechanical
The color ______ in a color-coded cutaway diagram indicates intake flow from the reservoir through
the filters to the pump. - Answers green
A ______ valve protects a fluid power system from overpressure by setting a maximum operating
pressure. - Answers relief
The two types of mechanical accumulators include weight- and ______-loaded. - Answers spring
In a hydraulic system, fluid flow is produced by a _____. - Answers pump
_____ is the amount of fluid that passes a given point in one minute. - Answers flow rate
A(n) ____ is a vessel in which fluid is stored under pressure for future release of energy. - Answers
accumulator
_____ is the ability to hold or contain something. - Answers capacity
By controlling, ____ and pressure, hydraulic systems can produce a large amount of work. - Answers
fluid flow
For industrial applications, hydraulic fluid viscosities are typically about ____ SUS at ___C - Answers
150; 40
Pressure _______ is the pressure difference between two points in a fluid power system. - Answers
drop
_____ fluid flow is present in systems where pipes, tubes, and hoses may be too small for the system.
- Answers turbulent
A ____ flow meter has high internal resistance to fluid flow. - Answers weighted
_____ accumulators are typically small and lightweight, with capacities up to 1 gal. - Answers
diaphragm, gas-charged
A(n) ______ diagram is a graphic representation of how devices interconnect within a fluid power
system. - Answers pictorial
On a schematic diagram, _____ lines are used to represent pilot lines. - Answers dashed
A(n) ____ is a device that controls the pressure, direction and/or rate of fluid flow. - Answers valve
____ flow has an erratic, nonlayered pattern - Answers turbulent
_____ pressure is the pressure of compressed gas in an accumulator prior to the admission of
hydraulic fluid. - Answers precharge
A(n) _____ is a metal sleeve used for joining one piece of tubing to another. - Answers ferrule
A(n) ______ diagram is also referred to as a graphic diagram. - Answers schematic
________ flow has smooth and continuous layered pattern - Answers laminar
A(n) _____ is a device that converts low-pressure, high-flow-rate fluid to high-pressure, low-flow-rate
fluid. - Answers intensifier
A(n) _____ allows the force applied on one cylinder to be increased on another system. - Answers
force multiplication system
A(n) _____ measures the flow of hydraulic fluid within a system. - Answers flow meter
_____ is the size of a space or chamber measured in cubic unites - Answers volume
A(n) ______ is a self-contained unit that includes all the components required to create flow, regulate
pressure, and filter hydraulic fluid. - Answers hydraulic power unit
On a schematic diagram, _____ lines are used to represent exhaust or drain lines. - Answers dotted
A(n) _______ is a test instrument used to measure fluid viscosity. - Answers Saybolt viscometer
A(n) _____ is matter composed of atoms and is the smallest particle that a compound can be reduced
to while still possessing the chemical properties of that compound. - Answers molecule
Two categories of accumulators that can be used in hydraulic systems are gas-charged and ________.
- Answers mechanical
