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