MMET 401 TESTBANK QUESTIONS
WITH 100% CORRECT ANSWERS |
ALREADY PASSED
The velocity of fluid flow increases at any restriction in the piping if the ___ remains the
same in the system. - Answer- flow rate
A __ is a metal sleeve used for joining one piece of tubing to another - Answer- ferrule
A _ is a piece of pipe that is used to interconnect pipes and allows them to change
direction - Answer- pipe fitting
Pressure spikes that occur within a hydraulic system can be as high as ___% of the
operating pressure. - Answer- 50
The two types of __ used in hydraulic systems are black and stainless steel - Answer-
piping
__ is the highest amount of pressure at which a pump can create fluid flow - Answer-
pressure rating
A __ vane pump allows adjustment of the flow rate of the pump - Answer- variable-
displacement, pressure-compensated
Vane pump types include unbalanced, balanced, and ___. - Answer- variable
displacement
A_ is a crescent moon shapes seal between the gears and between the inlet and butler
sides of an internal gear pump. - Answer- crescent seal
A_ pump has pistons in a rotating cylinder that are at an angle to the drive shaft and
thrust plate - Answer- bent- axis
A_ pump has pistons in a rotating cylinder block parallel to the drive shaft - Answer-
axial piston
,A_ allows a technician to replace an entire assembly in a vane pump when the internal
parts need to be replaced - Answer- cartridge assembly
__ is the relationship between actual and theoretical fluid flow - Answer- volumetric
efficiency
All hydraulic hoses are constructed with a minimum of __ layers. - Answer- three
__ is a method of removing scale and rust from metal through chemical treatment. -
Answer- pickling
Piping is available in standard sizing with ODs up to __. - Answer- 12
Professional certifications are valid for up to ____ years - Answer- 5
Fluid in a closed fluid power system exerts ___ equally in all directions - Answer-
Pressure
___ system applications consist of equipment used to move light loads typically less
than 100 lbs - Answer- pneumatic
An ___ system uses gas under pressure - Answer- pneumatic
____ is environmentally nonhazardous hydraulic fluid that is composed of synthetic
chemicals and vegetable - based oil - Answer- bio-hydraulic fluid
_____ system uses liquid under pressure - Answer- hydraulic
___ is technology using fluid to transmit power from one location to another - Answer-
fluid power
___ indicates the rate that work is done - Answer- Power
Pressure is typically measured in psi, bars, and __ - Answer- kilopascals
Most pump manufacturers recommend a vacuum rating less than or equal to __ in. Hg.
- Answer- depends on pump design
A__ consist of a glass tube completely filled with mercury and closed on one end -
Answer- barometer
__ energy os the energy of motion - Answer- kinetic
A common form of inefficiency in a fluid power system is __ - Answer- Leaks, resistance
, __ is anything that changes or tends to change the state of rest or motion of a body -
Answer- Force
Fluid mechanics is comprised of static energy and ___ energy - Answer- Kinetic
Energy from gears belts or pulleys is an example of __ energy. - Answer- mechanical
the __ pressure gauge is most commonly used fluid power gauge in industry - Answer-
bourdon tube
____ pressure is amount of pressure above the existing atmospheric pressure and is
used to measure pressure inside closed fluid power system - Answer- Gauge
___ is the useful amount of output energy from a fluid power system compared to the
amount of input energy - Answer- fluid power system efficiency
____ pressure is equal to the sum of gauge pressure and atmospheric pressure -
Answer- absolute
Pressure in a hydraulic system is the resistance to ___ - Answer- fluid flow
__ is used in a hydraulic system to allow fluid from reservoir to travel into the pump -
Answer- vacuum
Hydraulic pressure is created when fluid floe from a hydraulic pump meets ___ -
Answer- resistance
___ pressure is created by the weight of the atmosphere at sea level under standard air
conditions - Answer- atmospheric
Cylinders and motors in a fluid power system are considered __ - Answer- actuators
_ is the amount of weight in pounds that a fluid power system must produce to move an
object - Answer- exerted force
__ must be overcome to perform work. - Answer- resistance
Fluid power system energy transmission is based on efficiency, power, and __ -
Answer- work
__ is the force that stops, slows, or restricts the movement of fluid - Answer- resistance
__ states that when a force is applied to a confined fluid, the force is felt throughout the
fluid undiminished - Answer- Pascal's law
WITH 100% CORRECT ANSWERS |
ALREADY PASSED
The velocity of fluid flow increases at any restriction in the piping if the ___ remains the
same in the system. - Answer- flow rate
A __ is a metal sleeve used for joining one piece of tubing to another - Answer- ferrule
A _ is a piece of pipe that is used to interconnect pipes and allows them to change
direction - Answer- pipe fitting
Pressure spikes that occur within a hydraulic system can be as high as ___% of the
operating pressure. - Answer- 50
The two types of __ used in hydraulic systems are black and stainless steel - Answer-
piping
__ is the highest amount of pressure at which a pump can create fluid flow - Answer-
pressure rating
A __ vane pump allows adjustment of the flow rate of the pump - Answer- variable-
displacement, pressure-compensated
Vane pump types include unbalanced, balanced, and ___. - Answer- variable
displacement
A_ is a crescent moon shapes seal between the gears and between the inlet and butler
sides of an internal gear pump. - Answer- crescent seal
A_ pump has pistons in a rotating cylinder that are at an angle to the drive shaft and
thrust plate - Answer- bent- axis
A_ pump has pistons in a rotating cylinder block parallel to the drive shaft - Answer-
axial piston
,A_ allows a technician to replace an entire assembly in a vane pump when the internal
parts need to be replaced - Answer- cartridge assembly
__ is the relationship between actual and theoretical fluid flow - Answer- volumetric
efficiency
All hydraulic hoses are constructed with a minimum of __ layers. - Answer- three
__ is a method of removing scale and rust from metal through chemical treatment. -
Answer- pickling
Piping is available in standard sizing with ODs up to __. - Answer- 12
Professional certifications are valid for up to ____ years - Answer- 5
Fluid in a closed fluid power system exerts ___ equally in all directions - Answer-
Pressure
___ system applications consist of equipment used to move light loads typically less
than 100 lbs - Answer- pneumatic
An ___ system uses gas under pressure - Answer- pneumatic
____ is environmentally nonhazardous hydraulic fluid that is composed of synthetic
chemicals and vegetable - based oil - Answer- bio-hydraulic fluid
_____ system uses liquid under pressure - Answer- hydraulic
___ is technology using fluid to transmit power from one location to another - Answer-
fluid power
___ indicates the rate that work is done - Answer- Power
Pressure is typically measured in psi, bars, and __ - Answer- kilopascals
Most pump manufacturers recommend a vacuum rating less than or equal to __ in. Hg.
- Answer- depends on pump design
A__ consist of a glass tube completely filled with mercury and closed on one end -
Answer- barometer
__ energy os the energy of motion - Answer- kinetic
A common form of inefficiency in a fluid power system is __ - Answer- Leaks, resistance
, __ is anything that changes or tends to change the state of rest or motion of a body -
Answer- Force
Fluid mechanics is comprised of static energy and ___ energy - Answer- Kinetic
Energy from gears belts or pulleys is an example of __ energy. - Answer- mechanical
the __ pressure gauge is most commonly used fluid power gauge in industry - Answer-
bourdon tube
____ pressure is amount of pressure above the existing atmospheric pressure and is
used to measure pressure inside closed fluid power system - Answer- Gauge
___ is the useful amount of output energy from a fluid power system compared to the
amount of input energy - Answer- fluid power system efficiency
____ pressure is equal to the sum of gauge pressure and atmospheric pressure -
Answer- absolute
Pressure in a hydraulic system is the resistance to ___ - Answer- fluid flow
__ is used in a hydraulic system to allow fluid from reservoir to travel into the pump -
Answer- vacuum
Hydraulic pressure is created when fluid floe from a hydraulic pump meets ___ -
Answer- resistance
___ pressure is created by the weight of the atmosphere at sea level under standard air
conditions - Answer- atmospheric
Cylinders and motors in a fluid power system are considered __ - Answer- actuators
_ is the amount of weight in pounds that a fluid power system must produce to move an
object - Answer- exerted force
__ must be overcome to perform work. - Answer- resistance
Fluid power system energy transmission is based on efficiency, power, and __ -
Answer- work
__ is the force that stops, slows, or restricts the movement of fluid - Answer- resistance
__ states that when a force is applied to a confined fluid, the force is felt throughout the
fluid undiminished - Answer- Pascal's law
