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