simple machines four bar linkage flywheels power transmission belts clutches gears governors cams bearings - One Line Questions

1. A four-bar linkage consists of how many links and joints? — 4 links, 4 joints
2. Gears are used to transmit power between shafts that are: — Can be parallel, intersecting, or non-parallel and non-intersecting
3. The maximum angle through which the cam rotates while the follower is in contact with the nose of the cam is called the: — Angle of action
4. Which type of bearing uses a fluid film to separate the moving surfaces? — Fluid bearing
5. Which type of bearing is characterized by a high load-carrying capacity and is suitable for heavy radial loads? — Cylindrical roller bearing
6. Which of the following is a type of sliding-contact bearing? — Journal bearing
7. A Class 1 lever has the fulcrum positioned: — Between the effort and the load
8. An 'involute' profile is commonly used for the teeth of which machine element? — Gear
9. The path traced by the follower as the cam rotates is called the: — Pitch curve
10. A wheelbarrow is an example of which class of lever? — Class 2
11. The ratio of the tight side tension to the slack side tension in a belt drive is known as the: —
12. In a slider-crank mechanism, which link is typically fixed? — Frame
13. A cone clutch is a type of friction clutch where the friction surfaces are shaped like: — Cones
14. A flywheel's effectiveness in reducing speed fluctuations depends on its mass and its: — Moment of inertia
15. In a cam-follower mechanism, the displacement of the follower is a function of the cam's: — Angular position
16. Which type of belt is known for its positive drive, meaning it does not slip? — Timing belt
17. Which belt drive system allows for a change in speed ratio by using stepped pulleys? — Variable speed belt drive
18. Which type of four-bar linkage has one link completely rotating relative to another link? — Drag-link mechanism
19. Which type of governor uses centrifugal force to control the engine speed? — All of the above
20. What is the primary advantage of a worm gear drive? — Self-locking capability
21. Which of the following is a disadvantage of using cams for motion transmission? — Complex manufacturing
22. Which of the following is a characteristic of a Watt governor? — It has a higher equilibrium speed than a Porter governor for the same height.
23. Which type of clutch uses friction material to transmit torque? — Friction clutch
24. Which of the following is a type of rolling-contact bearing? — Ball bearing
25. In a Class 3 lever, the effort is always: — Greater than the load
26. 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: — Pulley
27. In a simple lever, the effort arm is the distance between the fulcrum and the: — Effort
28. The coefficient of fluctuation of speed for a flywheel is defined as the ratio of the difference between maximum and minimum speeds to the: — Average speed
29. The 'period of fluctuation of energy' in a flywheel is related to the: — Work done during one cycle of fluctuation
30. The sensitivity of a governor is defined as the ratio of the range of speed to the: — Mean speed
31. A 'dwell' period in a cam mechanism refers to a phase where the follower: — Remains stationary
32. A sprag clutch is a type of clutch that allows rotation in only one direction. This is also known as a: — Overrunning clutch
33. Bevel gears are used to transmit power between shafts that are: — Intersecting
34. The number of teeth on a gear divided by the number of teeth on its pinion is called the: — Gear ratio
35. Which governor is characterized by a parabolic path of the balls? — Wilson-Hartnell governor
36. The energy stored in a flywheel due to its rotation is: — Kinetic energy
37. Which of the following is the most fundamental example of a simple machine? — Lever
38. Which type of follower reciprocates in a direction parallel to the cam's axis of rotation? — In-line follower
39. The moment of inertia of a flywheel is a measure of its: — Resistance to angular acceleration
40. 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? — All of the above
41. A cam is a rotating or oscillating machine element which transforms motion by directly engaging with a: — Follower
42. A governor is a device used to regulate the: — Speed of an engine
43. Which of the following is a disadvantage of belt drives? — They can slip under heavy loads
44. 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? — To reduce friction
45. What is the primary function of a flywheel in an engine? — To smooth out fluctuations in speed
46. A cam mechanism where the follower moves in a circular arc is called a: — Oscillating cam
47. A clutch is a device used to connect or disconnect: — Two rotating shafts
48. Which of the following is NOT a type of power transmission belt? — Chain belt
49. Which specific type of four-bar linkage is used in the steering mechanism of most automobiles? — Ackermann steering mechanism
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