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