simple machines four bar linkage flywheels power transmission belts clutches gears governors cams bearings - Question Bank
1. Which of the following is a disadvantage of using cams for motion transmission?
2. In a Class 3 lever, the effort is always:
3. Which of the following is a type of sliding-contact bearing?
4. A cam mechanism where the follower moves in a circular arc is called a:
5. Which of the following is a characteristic of a Watt governor?
6. An 'involute' profile is commonly used for the teeth of which machine element?
7. Which type of belt is known for its positive drive, meaning it does not slip?
8. The 'period of fluctuation of energy' in a flywheel is related to the:
9. In a slider-crank mechanism, which link is typically fixed?
10. A wheelbarrow is an example of which class of lever?
11. Which type of bearing is characterized by a high load-carrying capacity and is suitable for heavy radial loads?
12. A 'dwell' period in a cam mechanism refers to a phase where the follower:
13. Which governor is characterized by a parabolic path of the balls?
14. Bevel gears are used to transmit power between shafts that are:
15. A cone clutch is a type of friction clutch where the friction surfaces are shaped like:
16. Which of the following is a disadvantage of belt drives?
17. The coefficient of fluctuation of speed for a flywheel is defined as the ratio of the difference between maximum and minimum speeds to the:
18. In a Grashof linkage, the condition for it to be a Grashof mechanism is that the sum of the longest and shortest link lengths must be less than the sum of the other two link lengths. If this condition is met, what is a possible motion?
19. A simple machine that consists of a grooved wheel on an axle, used to change the direction of a force or to gain mechanical advantage is a:
20. Which type of bearing uses a fluid film to separate the moving surfaces?
21. In a cam-follower mechanism, the displacement of the follower is a function of the cam's:
22. The sensitivity of a governor is defined as the ratio of the range of speed to the:
23. What is the primary advantage of a worm gear drive?
24. A sprag clutch is a type of clutch that allows rotation in only one direction. This is also known as a:
25. The maximum angle through which the cam rotates while the follower is in contact with the nose of the cam is called the:
26. Which belt drive system allows for a change in speed ratio by using stepped pulleys?
27. A flywheel's effectiveness in reducing speed fluctuations depends on its mass and its:
28. The energy stored in a flywheel due to its rotation is:
29. Which specific type of four-bar linkage is used in the steering mechanism of most automobiles?
30. A Class 1 lever has the fulcrum positioned:
31. In a simple lever, the effort arm is the distance between the fulcrum and the:
32. Which of the following is a type of rolling-contact bearing?
33. A bearing is a machine element that constrains relative motion to only the desired motion and reduces friction between moving parts. What is its primary function?
34. Which type of follower reciprocates in a direction parallel to the cam's axis of rotation?
35. The path traced by the follower as the cam rotates is called the:
36. A cam is a rotating or oscillating machine element which transforms motion by directly engaging with a:
37. Which type of governor uses centrifugal force to control the engine speed?
38. A governor is a device used to regulate the:
39. The number of teeth on a gear divided by the number of teeth on its pinion is called the:
40. Gears are used to transmit power between shafts that are:
41. Which type of clutch uses friction material to transmit torque?
42. A clutch is a device used to connect or disconnect:
43. The ratio of the tight side tension to the slack side tension in a belt drive is known as the:
44. Which of the following is NOT a type of power transmission belt?
45. The moment of inertia of a flywheel is a measure of its:
46. What is the primary function of a flywheel in an engine?
47. Which type of four-bar linkage has one link completely rotating relative to another link?
48. A four-bar linkage consists of how many links and joints?
49. Which of the following is the most fundamental example of a simple machine?