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Test your basic knowledge |
Mechanical Gears
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. For a crown and pinion - the direction of ____ is reversible
Cam and follower
travel
Increased
Opposite - back & forth - in one direction
2. For a bevel gear assembly - is the _____ is constant
Torque
Linear - 2 inches
direction
travel
3. For a crank and slider - the flow of power...
Rotary
Is reversible
Constant
4:1
4. For a lead screw - which is increased in the output? force or speed?
Speed
The flow of power is reversible
Constant
Increased
5. For a simple gear with idler - predict what the direction of travel would be between the input and output gears if the idler gear is eliminated from the mechanism.
Turns of output gear = number of teeth on output gr turns of output gear = number of teeth on input gr
Rotary
Decrease - increase
The output gear would turn the opposite way
6. For a simple gear with idler - is the torque increased - decreased - or constant?
Rotary
Turns of output gear = number of teeth on output gr turns of output gear = number of teeth on input gr
Speed - torque
Increased
7. For a lead screw - what is the type of output movement?
90<x<270
90 degrees
Parallel
Linear
8. For a rack and pinion - the flow of power is...
Decreased
Reversible
Is crossed
Linear - 2 inches
9. For a crown and pinion - what is the gear ratio?
Decreased
Rotary
3.2:1
Longer
10. For a cam and follower - the ______ of travel is reversible
travel
Torque
direction
Is reversible
11. For a simple gear with idler - the ______ is reversible
Increased
Longer
flow of power
Torque
12. For a universal joint...
Cam and follower
The flow of power is reversible
4:1
travel
13. For a worm and wheel - is the torque increased - decreased - or constant?
Decreased
bevel
Increased
The flow of power
14. For a rack and pinion - what is the type of output movement? what distance does the rack move with one revolution of the crank?
bevel
Rotary
90<x<270
Linear - 2 inches
15. For a pulley and belt - what is the position of the input shaft compared to the output shaft?
The flow of power
Longer
Rotary
Parallel
16. For a simple gear with idler - is the speed increased - decreased - or constant?
Decreased
Speed
20:1
6
17. For a _____ gear assembly - the flow of power is reversible
Decreased
Decreased
90 degrees
bevel
18. For a rack and pinion - the ___________ is reversible
Decreased
The flow of power
direction of travel
Increased
19. For a pulley and belt - what is the input to output ratio?
The output gear would turn the opposite way
direction of travel
1:2.5
1:1
20. For a worm and wheel - the flow of power is...
Rotary
They're perpendicular
not reversible
Decreased
21. For a crank and slider - the input to this system is what type of motion?
Speed
3.2:1
Rotary
Torque
22. For rack and pinion - if the diameter of the pinion gear were increased - would the rack move a shorter or longer distance?
Same direction
The flow of power
Longer
Rotary
23. For a pulley and belt - the input shaft turn in the _____ direction as the output shaft
Reciprocating
The output gear would turn the opposite way
Perpendicular
Same
24. For a pulley and belt - the input shaft does not turn in the same direction as the output shaft if the belt...
Is crossed
Perpendicular
90 degrees
Increased
25. For a worm and wheel - what is the gear ratio?
Reversible
Increased
6
20:1
26. The difference between linear and reciprocating mechanisms is that in a linear mechanism - in order to make the output move in the opposite direction - you have to turn the input... In a reciprocating mechanism - the mechanism moves...... when the in
Is crossed
Increased
Opposite - back & forth - in one direction
Reversible
27. For a crank and slider - how far does the slider move each revolution of the crank?
Once - 1:1
Parallel
Perpendicular
90 degrees
28. In a mechanism - when the input goes from a small gear to an output which is a larger gear - the speed will... When this happens - the amount of torque will....
bevel
Longer
Decrease - increase
not reversible
29. For a crank and - if the diameter of the crank gear were increased - would the slider move a shorter or longer distance?
travel
bevel
20:1
Longer
30. For a simple gear with idler - what is the gear ratio?
4:1
Perpendicular
Same
Is constant
31. For a crown and pinion - _______ is reversible
not
Reversible
Linear - 2 inches
The flow of power
32. Gear ratio formula
Is reversible
Turns of output gear = number of teeth on output gr turns of output gear = number of teeth on input gr
Parallel
Decreased
33. For a crown and pinion - is the speed increased - decreased - or constant?
Reversible
The flow of power is reversible
Increased
Rotary
34. For a lead screw - what is the type of input movement?
1:1
bevel
Once - 1:1
Rotary
35. For a simple gear with idler - compare the direction of travel between input and output gears.
Reciprocating
Linear
They turn the same way
3.2:1
36. In the pulley and belt mechanism - you held onto the output of the mechanism and tried to stop movement to test for the mechanism's...
Same direction
Rotary
Torque
Rotary
37. For a lead screw - is the direction of travel...
Increased
Is reversible
Once - 1:1
Reciprocating
38. For a universal joint - what is the angular range between the input shaft and the output shaft in which this mechanism will work?
Rotary
90<x<270
Is constant
Increased
39. For a worm and wheel - the direction of travel is...
Is reversible
Reversible
They turn the same way
Is reversible
40. For a pulley and belt - is the torque increased - decreased - or constant?
Decreased
Linear
Increased
1:1
41. For a crown and pinion - what is the angle of the input shaft compared to the output shaft?
Decrease - increase
Perpendicular
Is reversible
Cam and follower
42. For a cam and follower - what is the type of output movement?
Reciprocating
Parallel
Is reversible
The flow of power
43. When a big gear turns a small one - the output provides more... but less... than the input.
Torque
Speed - torque
90<x<270
Torque
44. For a rack and pinion - what is the type of input movement?
Is crossed
Rotary
Increased
Is reversible
45. For a bevel gear assembly - what is the gear ratio?
90<x<270
1:1
Speed - torque
direction
46. For a bevel gear assembly - what is the angle of the input shaft compared to the output shaft?
Is reversible
90 degrees
Torque
not
47. For a crown and pinion - is the torque increased - decreased - or constant?
Decreased
They turn the same way
Rotary
direction
48. For a cam and follower - what is the type of input movement?
Rotary
flow of power
Input shaft
Turns of output gear = number of teeth on output gr turns of output gear = number of teeth on input gr
49. For a universal joint - what is the speed ratio of the input shaft to the output shaft?
1:1
Is constant
The flow of power is reversible
Constant
50. For a __________- the flow of power is not reversible
The flow of power
Cam and follower
Opposite - back & forth - in one direction
Is crossed