Advanced Manufacturing I Mechanisms 3 Question Preview (ID: 24208)
Mechanisms Set 3.
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A gear is
a) a mechanical part with teeth cut into the edge; the teeth fit with teeth on another part to transmit motion and force
b) any device that changes the input movements or forces into another set of output movements or forces
c) any tool that relies solely on the person using it to provide power
d) the strength of motion at any particular time
A mechanism is defined as
a) any device that changes the input movements or forces into another set of output movements or forces
b) a mechanical part with teeth cut into the edge; the teeth fit with teeth on another part to transmit motion and force
c) a series of gears working together
d) any tool that relies solely on the person using it to provide power
Mechanical advantage is
a) the measure of how a tool or machine changes the force put into it
b) a series of gears working together
c) a mechanical part with teeth cut into the edge; the teeth fit with teeth on another part to transmit motion and force
d) any tool that relies solely on the person using it to provide power
A gear train is
a) a series of gears working together
b) any tool that relies solely on the person using it to provide power
c) a mechanical part with teeth cut into the edge; the teeth fit with teeth on another part to transmit motion and force
d) the most elementary devices that provide mechanical advantage; the building blocks upon which other, more complicated devices
Hand tool is defined as
a) any tool that relies solely on the person using it to provide power
b) the most elementary devices that provide mechanical advantage; the building blocks upon which other, more complicated devices
c) the amount of matter in an object
d) a mechanical part with teeth cut into the edge; the teeth fit with teeth on another part to transmit motion and force
Friction
a) occurs anytime two bodies come in contact with each other
b) occurs when a force moves or displaces an object
c) the resistance of two stationary objects when you try to move one of them
d) any device that changes the input movements or forces into another set of output movements or forces
A simple machine is
a) the most elementary devices that provide mechanical advantage; the building blocks upon which other, more complicated devices
b) the measure of how a tool or machine changes the force put into it
c) any device that changes the input movements or forces into another set of output movements or forces
d) a device that uses several mechanisms together
Gears can accomplish which of the following?
a) Increase speed, decrease speed, change the direction of motion
b) increase speed, wear, rise
c) change the direction of motion only
d) increase speed only
A ball is rolling in a straight line over the hardwood floor of a hallway. Suddenly the ball is struck from the right by a running cat. The ball is now rolling left. This is an example of which of Newton's laws of motion in action?
a) Newton's first law of motion
b) Newton's third law of motion
c) Newton's second law of motion
d) Newton's fifth law of motion
Friction causes heat. What else does it cause?
a) wear
b) change in direction
c) loss of turn
d) steam
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