Review Linkages, Cams, and
Turnbuckles Quiz
1 A windshield wiper is one application of the __________ linkage.
- Single rocker
- Three bar
- Double rocker
- Crank rocker - ✔✔Double rocker
2. Friction is resistance
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Review Linkages, Cams, and
Turnbuckles Quiz
1 A windshield wiper is one application of the __________ linkage.
- Single rocker
- Three bar
- Double rocker
- Crank rocker - ✔✔Double rocker
2. Friction is resistance caused by two __________ rubbing against each other.
- Bearings
- Wheels
- Hands
- Surfaces - ✔✔Surfaces
3. One application that takes advantages of both high and low amounts of friction is a(n)
__________.
- Ice skater
- Belt sander
- Automobile brake
- Axle grease - ✔✔Belt sander
4. The crank rocker linkage is one type of __________ linkage.
- Three bar
- Four bar
- Slider rocker
- Double rocker - ✔✔Four bar
5. A turnbuckle is a device commonly used to tighten __________.
- Linkages
- Cam followers
- Inclined planes
- Ropes or cables - ✔✔Ropes or cables
6. An inclined plane is a flat surface set at an angle above the __________.
- Horizontal
- Vertical
- Conical
- Spherical - ✔✔Horizontal
7 A wheel reduces friction because __________ friction is less than sliding friction.
- Kinetic
- Static
- Grazing
- Rolling - ✔✔Rolling
8. The mechanical advantage of an inclined plane is the ratio of the __________ of the
inclined plane divided by its __________.
- Load, width
- Height, load
- Force applied, length
- Length, height - ✔✔Length, height
9. A __________ linkage changes rotary motion into reciprocating (back and forth)
motion.
- Slider crank
- Double rocker
- Crank rocker
- Double crank - ✔✔Slider crank
The coefficient of friction is the ratio of the force of friction divided by the __________.
- Mass of the load
- Normal force
- Angle of the inclined plane
- None of the above - ✔✔Normal force
11. The two types of friction are static friction and __________ friction.
- Stationary
- Non-moving
- Coefficient
- Kinetic - ✔✔Kinetic
A turnbuckle has two bolts, where __________.
- Both have right-hand threads
- Both have left-hand threads
- One has left-hand threads and the other has right-hand threads
- None of the above - ✔✔One has left-hand threads and the other has right-hand
threads
13. The double rocker linkage is one type of __________ linkage.
- Three bar
- Four bar
- Crank rocker
- Slider rocker - ✔✔Four bar
14. The four properties of a cam are: rise, fall, __________, and constant velocity.
- Roundness
- Dwell
- Ebb
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