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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 cam and follower - how many times does the follower move up and down with one revolution of the crank?
Torque
Once - 1:1
1:1
Rotary
2. For a universal joint...
not reversible
flow of power
The flow of power is reversible
Rotary
3. For a simple gear with idler - compare the direction of travel between input and output gears.
Once - 1:1
They turn the same way
Decreased
Speed - torque
4. For a worm and wheel - is the torque increased - decreased - or constant?
1:1
Is reversible
Increased
Decreased
5. For a crank and slider - the flow of power...
Is reversible
Once - 1:1
1:2.5
Same
6. For a cam and follower - what is the type of output movement?
direction
Reciprocating
Linear
Perpendicular
7. For a crank and - if the diameter of the crank gear were increased - would the slider move a shorter or longer distance?
1:2.5
Reciprocating
Increased
Longer
8. For a simple gear with idler - what is the gear ratio?
bevel
Decreased
travel
4:1
9. For a worm and wheel - the flow of power is...
Is reversible
Constant
Longer
not reversible
10. For a worm and wheel - what is the angle of the input shaft compared to the output shaft?
11. For a rack and pinion - what is the type of input movement?
1:1
3.2:1
Is reversible
Rotary
12. For a crank and slider - how far does the slider move each revolution of the crank?
Once - 1:1
flow of power
Rotary
Decreased
13. For a crown and pinion - the direction of ____ is reversible
Is reversible
Turns of output gear = number of teeth on output gr turns of output gear = number of teeth on input gr
direction
travel
14. For a cam and follower - what is the type of input movement?
Rotary
not
Constant
90<x<270
15. For a crown and pinion - what is the gear ratio?
Is reversible
They're perpendicular
3.2:1
Reciprocating
16. For a rack and pinion - the flow of power is...
Perpendicular
Decreased
Reversible
3.2:1
17. Which of the following mechanisms moved more quickly - the lead screw or the rack and pinion? consider the gear ratio. which mechanism moved the farthest with one turn of the crank handle?
Reversible
3.2:1
Lead screw - rack and pinion
Torque
18. For a crank and slider - the output of this system is what type of motion?
Input shaft
Reciprocating
Longer
Increased
19. For a rack and pinion - what is the type of output movement? what distance does the rack move with one revolution of the crank?
Linear - 2 inches
Speed
6
Rotary
20. For a lead screw - the flow of power is ____reversible
Decrease - increase
not
Input shaft
Reversible
21. For a cam and follower - the ______ of travel is reversible
direction of travel
Longer
direction
Is reversible
22. 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....
Constant
Decrease - increase
Is reversible
1:2.5
23. For a bevel gear assembly - is the _____ is constant
travel
Torque
Linear
Once - 1:1
24. 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...
The flow of power
They're perpendicular
Torque
Torque
25. For a simple gear with idler - the position of the ________ compared to the output shaft is parallel.
Reversible
Is constant
Input shaft
Opposite - back & forth - in one direction
26. For a simple gear with idler - is the torque increased - decreased - or constant?
Increased
They turn the same way
90<x<270
Opposite - back & forth - in one direction
27. For a bevel gear assembly - what is the angle of the input shaft compared to the output shaft?
bevel
Linear - 2 inches
90 degrees
Increased
28. For a pulley and belt - the input shaft does not turn in the same direction as the output shaft if the belt...
Constant
20:1
Is crossed
Decreased
29. For a lead screw - is the direction of travel...
Rotary
Is reversible
Decreased
Is crossed
30. For a universal joint - do the input and output shafts turn in the...
Increased
They're perpendicular
Same direction
Constant
31. When a big gear turns a small one - the output provides more... but less... than the input.
Torque
Is reversible
bevel
Speed - torque
32. For a universal joint - what is the angular range between the input shaft and the output shaft in which this mechanism will work?
Input shaft
Parallel
90<x<270
Constant
33. For a simple gear with idler - the ______ is reversible
Increased
Is reversible
flow of power
They're perpendicular
34. For a pulley and belt - is the flow of power is...
Cam and follower
Increased
Reversible
Decreased
35. For a worm and wheel - is the speed increased - decreased - or constant?
Is constant
Decreased
Reversible
direction of travel
36. For a rack and pinion - the ___________ is reversible
Once - 1:1
4:1
direction of travel
3.2:1
37. For a crown and pinion - _______ is reversible
The flow of power
Decreased
Decreased
Increased
38. For a bevel gear assembly - what is the gear ratio?
Is constant
Constant
1:1
They turn the same way
39. For a lead screw - what is the type of output movement?
Same
Linear
90<x<270
Increased
40. For a pulley and belt - the input shaft turn in the _____ direction as the output shaft
Same
Lead screw - rack and pinion
90<x<270
Turns of output gear = number of teeth on output gr turns of output gear = number of teeth on input gr
41. For a universal joint - is the speed increased - decreased - or constant?
They turn the same way
Rotary
Constant
The flow of power
42. For a pulley and belt - what is the position of the input shaft compared to the output shaft?
Parallel
Speed - torque
Input shaft
1:1
43. For a universal joint - what is the speed ratio of the input shaft to the output shaft?
Increased
Longer
Constant
1:1
44. 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
90 degrees
Opposite - back & forth - in one direction
3.2:1
Speed - torque
45. For a lead screw - what is the type of input movement?
Rotary
travel
flow of power
They're perpendicular
46. For a universal joint - the torque...
The flow of power
Is constant
1:1
20:1
47. For a bevel gear assembly - is the speed increased - decreased - or constant?
Speed
Input shaft
Decreased
Constant
48. Gear ratio formula
Perpendicular
They turn the same way
Turns of output gear = number of teeth on output gr turns of output gear = number of teeth on input gr
Rotary
49. For a crown and pinion - is the torque increased - decreased - or constant?
Rotary
20:1
Decreased
The flow of power is reversible
50. For a pulley and belt - is the torque increased - decreased - or constant?
Turns of output gear = number of teeth on output gr turns of output gear = number of teeth on input gr
They turn the same way
90<x<270
Decreased