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