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