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