# Mechanical Gears

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 crown and pinion - what is the angle of the input shaft compared to the output shaft?

2. For a rack and pinion - what is the type of input movement?

3. For a cam and follower - what is the type of output movement?

4. For a bevel gear assembly - is the _____ is constant

5. For a worm and wheel - is the torque increased - decreased - or constant?

6. For a simple gear with idler - what is the gear ratio?

7. For a bevel gear assembly - is the speed increased - decreased - or constant?

8. For a simple gear with idler - is the torque increased - decreased - or constant?

9. For a simple gear with idler - the ______ is reversible

10. Gear ratio formula

11. 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

12. For a __________- the flow of power is not reversible

13. For a crank and - if the diameter of the crank gear were increased - would the slider move a shorter or longer distance?

14. For a pulley and belt - is the torque increased - decreased - or constant?

15. For a simple gear with idler - is the speed increased - decreased - or constant?

16. For a bevel gear assembly - what is the angle of the input shaft compared to the output shaft?

17. For a universal joint - do the input and output shafts turn in the...

18. For a lead screw - is the direction of travel...

19. For a pulley and belt - what is the position of the input shaft compared to the output shaft?

20. For a cam and follower - the ______ of travel is reversible

21. For a lead screw - which is increased in the output? force or speed?

22. For a worm and wheel - is the speed increased - decreased - or constant?

23. 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.

24. For a simple gear with idler - compare the direction of travel between input and output gears.

25. For a rack and pinion - the flow of power is...

26. For a worm and wheel - what is the gear ratio?

27. For a worm and wheel - the direction of travel is...

28. For a pulley and belt - what is the input to output ratio?

29. For a lead screw - the flow of power is ____reversible

30. For a cam and follower - how many times does the follower move up and down with one revolution of the crank?

31. 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....

32. 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?

33. For a crown and pinion - what is the gear ratio?

34. For a crown and pinion - is the speed increased - decreased - or constant?

35. 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...

36. For a rack and pinion - the ___________ is reversible

37. For a cam and follower - what is the type of input movement?

38. For a universal joint...

39. For a lead screw - how many revolutions of the crank are needed to move the screw block 1 inch?

40. For a crown and pinion - is the torque increased - decreased - or constant?

41. For a crank and slider - how far does the slider move each revolution of the crank?

42. For a universal joint - what is the speed ratio of the input shaft to the output shaft?

43. For a pulley and belt - is the flow of power is...

44. For a crank and slider - the output of this system is what type of motion?

45. For a crown and pinion - _______ is reversible

46. For a worm and wheel - the flow of power is...

47. For rack and pinion - if the diameter of the pinion gear were increased - would the rack move a shorter or longer distance?

48. For a _____ gear assembly - the flow of power is reversible

49. For a pulley and belt - is the speed increased - decreased - or constant?

50. For a rack and pinion - what is the type of output movement? what distance does the rack move with one revolution of the crank?