Mechanical Systems Flashcards
1
Q
What is the purpose of gears?
A
Transmit torque
2
Q
Two or more gears working in tandem is called a:
A
Transmission
3
Q
Gear ratio is:
A
Drive gear/other gear..
4
Q
Gears can change 3 things:
A
Magnitude
Speed
Direction
5
Q
Common motions permitted by bearings:
A
Axial
Linear
Spherical
Hinge
6
Q
What are causes for wear and deterioration of bearings?
A
Excessive load
Initial fitting
High Temperature
Vibration
Contamination
Excessive Speed
7
Q
WHat is the purpose of liquid lubricants?
A
Reduce friction and heat
Prevent corrosion
8
Q
When is lubricating oil used?
A
High and low temperatures where greese would become solid or liquid.
9
Q
Define corrosion
A
The wearing away of metals due to a chemical reaction
10
Q
What are methods of preventing corrosion?
A
Greese
Oil
Cathodic protection
Sacrificial Anode
