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