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