MMET 401 FINAL EXAM QUESTIONS AND ANSWERS
--------------------------------Chapter 1---------------------------------- - CORRECT ANSWER✅✅Fluid power
systems
Most professional certifications for fluid power technicians are valid for up to ____ years, at which time
they must be renewed. - CORRECT ANSWER✅✅5
_____ protective helmets protect against impacts at the top of the head only. - CORRECT
ANSWER✅✅Type 1
An OSHA-approved hearing conservation program is required whenever workers are exposed to noise
equal to our exceeding an 8 hour time-weighted average (TWA) of ____ decibels. - CORRECT
ANSWER✅✅85
____ is clothing and/or equipment worn by a worker to reduce the possibility of an injury. - CORRECT
ANSWER✅✅personal protective equipment (PPE)
ANSI Emergency Eyewash and Shower Equipment, specifies that an emergency eyewash station must be
located within ___ sec or ___ feet of hazards. - CORRECT ANSWER✅✅10; 55
All professional certifications for fluid power technicians are available through the ____. - CORRECT
ANSWER✅✅International Fluid Power Society (IFPS)
An ear protection device with an NRR of 33 means that in an area where the noise level is at 101 dB, the
level of noise entering the ear would be at ___ dB. - CORRECT ANSWER✅✅68
____ law states that fluid in a closed system takes shape of the container that it occupies and exerts
pressure equally in all directions. - CORRECT ANSWER✅✅Pascal's
____ protective helmets protect against top and side impacts. - CORRECT ANSWER✅✅Type 2
,___ are an eye and face protection device that covers the entire face with a plastic shield and is used for
protection from flying objects. - CORRECT ANSWER✅✅Face shields
Fluid in a closed fluid power system exerts ____ equally in all directions. - CORRECT
ANSWER✅✅Pressure
____ system applications consist of equipment used to move light loads that are typically less than 100
lb. - CORRECT ANSWER✅✅pneumatic
A ___ is an ear protection device worn over the ears to reduce the level of noise reaching the eardrum. -
CORRECT ANSWER✅✅earmuff
___ are an eye protection device with a flexible frame that is secured on the face with an elastic
headband. - CORRECT ANSWER✅✅goggles
___ are used to protect a worker's head by resisting penetration and absorbing the blow of an impact. -
CORRECT ANSWER✅✅protective helmets
A ____ system uses gas under pressure to create movement. - CORRECT ANSWER✅✅pneumatic
___ is the process of attaching a danger tag to the source of power to indicate that the equipment may
not be operated until the tag is removed. - CORRECT ANSWER✅✅tagout
___ protective helmets protect against impact hazards and contact with high voltages up to 20000 V. -
CORRECT ANSWER✅✅Class E (electrical)
___ is environmentally nonhazardous hydraulic fluid that is composed of synthetic chemicals and
vegetable based oil. - CORRECT ANSWER✅✅bio-hydraulic fluid
In an emergency, only ___ may remove a lockout/tagout, and only upon notification of the authorized
person who installed it. - CORRECT ANSWER✅✅supervisory personnel
,A ___ system uses liquid under pressure to create movement. - CORRECT ANSWER✅✅hydraulic
Class ___ protective helmets are the most common class of helmets used in manufacturing, mining, and
construction industries. - CORRECT ANSWER✅✅G
____ are an eye protection device with special impact-resistant glass or plastic lenses, reinforced
frames, and side shields. - CORRECT ANSWER✅✅safety glasses
An ____ number indicates how many decibels a noise level is reduced by. - CORRECT ANSWER✅✅NRR
(noise reduction rating)
___ is the technology of using a fluid to transmit power from one location to another. - CORRECT
ANSWER✅✅fluid power
------------------------------Chapter 2----------------------------------- - CORRECT ANSWER✅✅fluid power system
principles
____ indicates the rate that work is done. - CORRECT ANSWER✅✅Power
If 225 kg of force is exerted on a hydraulic cylinder, it is equal to ___ lb of force. - CORRECT
ANSWER✅✅495
Pressure is typically measured in psi, bars, and ___. - CORRECT ANSWER✅✅kilopascals (kPa)
If a hydraulic cylinder needs to lift a bridge beam that weighs 60000 lb and the piston in the cylinder has
a surface area of 113.10 sq. in, then the hydraulic system must produce system pressure of ___ psi. -
CORRECT ANSWER✅✅530.5
Most pump manufacturers recommend a vacuum rating less than or equal to ___ in Hg. - CORRECT
ANSWER✅✅vacuum rating depends on pump design and manufacturer specifications
, A ___ consists of a glass tube that is completely filled with mercury and closed on one end. - CORRECT
ANSWER✅✅mercury barometer
___ energy is the energy of motion. - CORRECT ANSWER✅✅kinetic
A common form of inefficiency in a fluid power system is ___. - CORRECT ANSWER✅✅leaks, resistance
to movement of mechanical devices, resistance in pipes and hoses (all of the above)
___ is anything that changes or tends to change the state of rest or motion of a body. - CORRECT
ANSWER✅✅force
Fluid mechanics is comprised of static energy and ___ energy. - CORRECT ANSWER✅✅kinetic
Horsepower is a mechanical unit of measure equal to the force required to move 550 lb, ___ ft in ___
sec. - CORRECT ANSWER✅✅1;1
Energy from gears, belts, or pulleys is an example of ___ energy. - CORRECT ANSWER✅✅mechanical
The ___ pressure gauge is the most commonly used fluid power pressure gauge in industry. - CORRECT
ANSWER✅✅bourdon tube
___ pressure is the amount of pressure above the existing atmospheric pressure and is used to measure
pressure inside a closed fluid power system. - CORRECT ANSWER✅✅gauge
___ is the useful amount of output energy from a fluid power system compared to the amount of input
energy. - CORRECT ANSWER✅✅fluid power system efficiency
____ pressure is equal to the sum of gauge pressure and atmospheric pressure. - CORRECT
ANSWER✅✅absolute
Pressure in a hydraulic system is the resistance to ___. - CORRECT ANSWER✅✅fluid flow
--------------------------------Chapter 1---------------------------------- - CORRECT ANSWER✅✅Fluid power
systems
Most professional certifications for fluid power technicians are valid for up to ____ years, at which time
they must be renewed. - CORRECT ANSWER✅✅5
_____ protective helmets protect against impacts at the top of the head only. - CORRECT
ANSWER✅✅Type 1
An OSHA-approved hearing conservation program is required whenever workers are exposed to noise
equal to our exceeding an 8 hour time-weighted average (TWA) of ____ decibels. - CORRECT
ANSWER✅✅85
____ is clothing and/or equipment worn by a worker to reduce the possibility of an injury. - CORRECT
ANSWER✅✅personal protective equipment (PPE)
ANSI Emergency Eyewash and Shower Equipment, specifies that an emergency eyewash station must be
located within ___ sec or ___ feet of hazards. - CORRECT ANSWER✅✅10; 55
All professional certifications for fluid power technicians are available through the ____. - CORRECT
ANSWER✅✅International Fluid Power Society (IFPS)
An ear protection device with an NRR of 33 means that in an area where the noise level is at 101 dB, the
level of noise entering the ear would be at ___ dB. - CORRECT ANSWER✅✅68
____ law states that fluid in a closed system takes shape of the container that it occupies and exerts
pressure equally in all directions. - CORRECT ANSWER✅✅Pascal's
____ protective helmets protect against top and side impacts. - CORRECT ANSWER✅✅Type 2
,___ are an eye and face protection device that covers the entire face with a plastic shield and is used for
protection from flying objects. - CORRECT ANSWER✅✅Face shields
Fluid in a closed fluid power system exerts ____ equally in all directions. - CORRECT
ANSWER✅✅Pressure
____ system applications consist of equipment used to move light loads that are typically less than 100
lb. - CORRECT ANSWER✅✅pneumatic
A ___ is an ear protection device worn over the ears to reduce the level of noise reaching the eardrum. -
CORRECT ANSWER✅✅earmuff
___ are an eye protection device with a flexible frame that is secured on the face with an elastic
headband. - CORRECT ANSWER✅✅goggles
___ are used to protect a worker's head by resisting penetration and absorbing the blow of an impact. -
CORRECT ANSWER✅✅protective helmets
A ____ system uses gas under pressure to create movement. - CORRECT ANSWER✅✅pneumatic
___ is the process of attaching a danger tag to the source of power to indicate that the equipment may
not be operated until the tag is removed. - CORRECT ANSWER✅✅tagout
___ protective helmets protect against impact hazards and contact with high voltages up to 20000 V. -
CORRECT ANSWER✅✅Class E (electrical)
___ is environmentally nonhazardous hydraulic fluid that is composed of synthetic chemicals and
vegetable based oil. - CORRECT ANSWER✅✅bio-hydraulic fluid
In an emergency, only ___ may remove a lockout/tagout, and only upon notification of the authorized
person who installed it. - CORRECT ANSWER✅✅supervisory personnel
,A ___ system uses liquid under pressure to create movement. - CORRECT ANSWER✅✅hydraulic
Class ___ protective helmets are the most common class of helmets used in manufacturing, mining, and
construction industries. - CORRECT ANSWER✅✅G
____ are an eye protection device with special impact-resistant glass or plastic lenses, reinforced
frames, and side shields. - CORRECT ANSWER✅✅safety glasses
An ____ number indicates how many decibels a noise level is reduced by. - CORRECT ANSWER✅✅NRR
(noise reduction rating)
___ is the technology of using a fluid to transmit power from one location to another. - CORRECT
ANSWER✅✅fluid power
------------------------------Chapter 2----------------------------------- - CORRECT ANSWER✅✅fluid power system
principles
____ indicates the rate that work is done. - CORRECT ANSWER✅✅Power
If 225 kg of force is exerted on a hydraulic cylinder, it is equal to ___ lb of force. - CORRECT
ANSWER✅✅495
Pressure is typically measured in psi, bars, and ___. - CORRECT ANSWER✅✅kilopascals (kPa)
If a hydraulic cylinder needs to lift a bridge beam that weighs 60000 lb and the piston in the cylinder has
a surface area of 113.10 sq. in, then the hydraulic system must produce system pressure of ___ psi. -
CORRECT ANSWER✅✅530.5
Most pump manufacturers recommend a vacuum rating less than or equal to ___ in Hg. - CORRECT
ANSWER✅✅vacuum rating depends on pump design and manufacturer specifications
, A ___ consists of a glass tube that is completely filled with mercury and closed on one end. - CORRECT
ANSWER✅✅mercury barometer
___ energy is the energy of motion. - CORRECT ANSWER✅✅kinetic
A common form of inefficiency in a fluid power system is ___. - CORRECT ANSWER✅✅leaks, resistance
to movement of mechanical devices, resistance in pipes and hoses (all of the above)
___ is anything that changes or tends to change the state of rest or motion of a body. - CORRECT
ANSWER✅✅force
Fluid mechanics is comprised of static energy and ___ energy. - CORRECT ANSWER✅✅kinetic
Horsepower is a mechanical unit of measure equal to the force required to move 550 lb, ___ ft in ___
sec. - CORRECT ANSWER✅✅1;1
Energy from gears, belts, or pulleys is an example of ___ energy. - CORRECT ANSWER✅✅mechanical
The ___ pressure gauge is the most commonly used fluid power pressure gauge in industry. - CORRECT
ANSWER✅✅bourdon tube
___ pressure is the amount of pressure above the existing atmospheric pressure and is used to measure
pressure inside a closed fluid power system. - CORRECT ANSWER✅✅gauge
___ is the useful amount of output energy from a fluid power system compared to the amount of input
energy. - CORRECT ANSWER✅✅fluid power system efficiency
____ pressure is equal to the sum of gauge pressure and atmospheric pressure. - CORRECT
ANSWER✅✅absolute
Pressure in a hydraulic system is the resistance to ___. - CORRECT ANSWER✅✅fluid flow
