MICHELIN HYDRAULICS EXAM
QUESTIONS AND ANSWERS 2026
VERIFIED.
Define Hydraulics - ANS the transmission of power through the use of a confined liquid
What are the advantages of a hydraulic system? - ANS • Variable speed control
• Reversible motion of prime movers
• System overload protection
• High power output in a small package
• Power components can stall out
• Motion can be transmitted without the slack or clearances needed in mechanical equipment
• Fluids don't wear out like mechanical machines
• Versatile, smooth, uniform action for many applications
• Can span great distances
The filter element/media will be given a nominal rating if - ANS the material does not have
consistent hole or pore size, thus the nominal rating is based on an average hole/pore size.
A fluid is a substance that can... - ANS flow and possess no definite shape
@2026/2027 ALLRIGHTS RESERVED.
,A fluid may be a ___________ or
______________. - ANS liquid
or
gas
Any substance is made up of... - ANS molecules
Liquid molecules are a combination of the molecular energy of a........ - ANS solid and gas
The primary difference between a gas and a liquid is their - ANS compressibility
Pascal's Law states - ANS the force applied to a confined fluid is transmitted equally in all
directions in the form of fluid pressure.
Pressure is - ANS a measure of a force's intensity
The Major side of the cylinder is... - ANS where the full amount of surface area in the cylinder
is utilized
*as opposed to the minor side, which houses the piston rod.
Pressure formula - ANS P=F/A
The pump creates _______ in a hydraulic system - ANS flow
@2026/2027 ALLRIGHTS RESERVED.
, Velocity is.... - ANS the average speed of the fluid passing a point or the average distance it
travels over a given unit of time.
Flow rate is....... - ANS a measure of the volume of fluid passing a point in a given time
Pressure in a hydraulic system is directly related to... - ANS the degree or amount of
resistance to
flow.
All resistance to flow in a system creates... - ANS pressure
____________ relates directly to the force generated by an actuator - ANS pressure
___________________relates directly to the speed an actuator operates at. - ANS flow rate
A liquid will always travel along....... - ANS the path of least resistance
in series, the resistance to flow/pressures........ - ANS add up
What are the primary functions of petroleum based hydraulic fluid? - ANS Acts as a means of
energy transmission
Cools the system by removing heat
Seals clearances between components
@2026/2027 ALLRIGHTS RESERVED.
QUESTIONS AND ANSWERS 2026
VERIFIED.
Define Hydraulics - ANS the transmission of power through the use of a confined liquid
What are the advantages of a hydraulic system? - ANS • Variable speed control
• Reversible motion of prime movers
• System overload protection
• High power output in a small package
• Power components can stall out
• Motion can be transmitted without the slack or clearances needed in mechanical equipment
• Fluids don't wear out like mechanical machines
• Versatile, smooth, uniform action for many applications
• Can span great distances
The filter element/media will be given a nominal rating if - ANS the material does not have
consistent hole or pore size, thus the nominal rating is based on an average hole/pore size.
A fluid is a substance that can... - ANS flow and possess no definite shape
@2026/2027 ALLRIGHTS RESERVED.
,A fluid may be a ___________ or
______________. - ANS liquid
or
gas
Any substance is made up of... - ANS molecules
Liquid molecules are a combination of the molecular energy of a........ - ANS solid and gas
The primary difference between a gas and a liquid is their - ANS compressibility
Pascal's Law states - ANS the force applied to a confined fluid is transmitted equally in all
directions in the form of fluid pressure.
Pressure is - ANS a measure of a force's intensity
The Major side of the cylinder is... - ANS where the full amount of surface area in the cylinder
is utilized
*as opposed to the minor side, which houses the piston rod.
Pressure formula - ANS P=F/A
The pump creates _______ in a hydraulic system - ANS flow
@2026/2027 ALLRIGHTS RESERVED.
, Velocity is.... - ANS the average speed of the fluid passing a point or the average distance it
travels over a given unit of time.
Flow rate is....... - ANS a measure of the volume of fluid passing a point in a given time
Pressure in a hydraulic system is directly related to... - ANS the degree or amount of
resistance to
flow.
All resistance to flow in a system creates... - ANS pressure
____________ relates directly to the force generated by an actuator - ANS pressure
___________________relates directly to the speed an actuator operates at. - ANS flow rate
A liquid will always travel along....... - ANS the path of least resistance
in series, the resistance to flow/pressures........ - ANS add up
What are the primary functions of petroleum based hydraulic fluid? - ANS Acts as a means of
energy transmission
Cools the system by removing heat
Seals clearances between components
@2026/2027 ALLRIGHTS RESERVED.
