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