USPS 955 || Acknowledged Answers 100%.
Which one of the following CANNOT be used as self-lubricating bushings? correct answers
Sleeved bushings consist of metal, plastic, or reinforced fibers composites sleeves that reduce
noise and vibrations by reducing the friction between moving mechanical parts.
Oil (lubricants) foaming in gear mechanism is caused by: correct answers Contamination of
lubricants with water
Which are the three main factors to consider when choosing a lubricant? correct answers
Temperature, workload, speed of moving parts
The benefit/benefits of dynamic balancing are: correct answers Low vibrations, low noise, and
higher bearing life
____________ roller bearings are available in cylindrical, barrel and taper shaped rollers. correct
answers staggered
When pressing a bearing into the housing, you should press against _________. correct answers
the outer race only
The purpose of a cylindrical roller bearing is to _________. correct answers Contain redial
motion of the shaft
The three basic shapes of roller bearings are: correct answers cylindrical, barrel, and tapered
The purpose of a thrust bearing is to: correct answers Contain axial motion of the shaft
_____________ cause overheating in the bearing and reduces the bearing life. correct answers
insufficient lubrication and speed
, In order to remove a bearing from a steel shaft, ___________ can be used without damaging the
bearing or the shaft. correct answers Dry ice and liquid nitrogen
____________ load is acting on the plane of the bearings' axis of rotation. correct answers Axial
Which of the following statements is true? correct answers Zero-film are sliding bearing which
are lubrication-free
The characteristic number of the bearing is given by:
Z=absolute viscosity of the lubricant, N= speed of journal, p=bearing pressure correct answers
ZN/p
Also called eccentrically loaded bearing is: correct answers Offset bearing
Reducing noise from sprockets and chain can be done by: correct answers Choosing sprockets
with more teeth, using a lighter chain, lubricating the bottom of the sprocket tooth
What is the advantage of bushing? correct answers Self-lubricating, less noise, less vibration
Which of the following lubrication system is used in two stroke engines? correct answers Mist
system
Thrust ball bearing are used to __________. correct answers Counteract axial force
Which one of the following CANNOT be used as self-lubricating bushings? correct answers
Sleeved bushings consist of metal, plastic, or reinforced fibers composites sleeves that reduce
noise and vibrations by reducing the friction between moving mechanical parts.
Which one of the following CANNOT be used as self-lubricating bushings? correct answers
Sleeved bushings consist of metal, plastic, or reinforced fibers composites sleeves that reduce
noise and vibrations by reducing the friction between moving mechanical parts.
Oil (lubricants) foaming in gear mechanism is caused by: correct answers Contamination of
lubricants with water
Which are the three main factors to consider when choosing a lubricant? correct answers
Temperature, workload, speed of moving parts
The benefit/benefits of dynamic balancing are: correct answers Low vibrations, low noise, and
higher bearing life
____________ roller bearings are available in cylindrical, barrel and taper shaped rollers. correct
answers staggered
When pressing a bearing into the housing, you should press against _________. correct answers
the outer race only
The purpose of a cylindrical roller bearing is to _________. correct answers Contain redial
motion of the shaft
The three basic shapes of roller bearings are: correct answers cylindrical, barrel, and tapered
The purpose of a thrust bearing is to: correct answers Contain axial motion of the shaft
_____________ cause overheating in the bearing and reduces the bearing life. correct answers
insufficient lubrication and speed
, In order to remove a bearing from a steel shaft, ___________ can be used without damaging the
bearing or the shaft. correct answers Dry ice and liquid nitrogen
____________ load is acting on the plane of the bearings' axis of rotation. correct answers Axial
Which of the following statements is true? correct answers Zero-film are sliding bearing which
are lubrication-free
The characteristic number of the bearing is given by:
Z=absolute viscosity of the lubricant, N= speed of journal, p=bearing pressure correct answers
ZN/p
Also called eccentrically loaded bearing is: correct answers Offset bearing
Reducing noise from sprockets and chain can be done by: correct answers Choosing sprockets
with more teeth, using a lighter chain, lubricating the bottom of the sprocket tooth
What is the advantage of bushing? correct answers Self-lubricating, less noise, less vibration
Which of the following lubrication system is used in two stroke engines? correct answers Mist
system
Thrust ball bearing are used to __________. correct answers Counteract axial force
Which one of the following CANNOT be used as self-lubricating bushings? correct answers
Sleeved bushings consist of metal, plastic, or reinforced fibers composites sleeves that reduce
noise and vibrations by reducing the friction between moving mechanical parts.
