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