AUTRY TECH DRAFTING/DESIGN

Read Chapter 20 on page 668. Answer the question below and enter it to OPEN LMS under 3M10W

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1. Flat belt drives offer

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A. low cost

B. shock absorption 

C. resistance to abrasive environment

D.  efficient power transmission at high speeds

E. all of the above

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2. _____ belts are the best basic workhorse of industry

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A. flat

B. V-

C. Groved

D. Positive-drive 

E. Crowned 

 

3. The grooved wheels of pulleys are referred to as 

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A. power whhels

B. sheaves 

C. idlers

D. transmission 

E. shunts 

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4. The toothed drive wheel used in chain drives is known as a 

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A. pintle 

B. sprocket 

C. pinion 

D. roller 

E. prawl

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5. Chains are used in applications where ______ compared to the application of V-belts 

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A. slower speeds are needed 

B. faster speeds are needed 

C. less efficient power transmission is needed 

D. more efficient power transmission is needed 

E. there are severe environmental conditions 

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6. Chain sag should be equivalent to approximately _____ percent of the center distance.

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A. 1

B. 2

C. 3

D. 5

D. 7

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7. ______ gears connect shafts whose axes intersect.

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A. Bevel 

B. Worm

C. Spur

D. Pinion

E. Miter

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8. The Smaller of the two gears in mesh is called the ____ gear.

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A. bevel

B. worm

C. spur

D. pinion

E. miter

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9. The factor to be considered in a selecting a spur gear is the 

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A. class of service 

B. required horsepower and service factor 

C. size of the spur gear pinion

D. size of the drive spur gear

E. any of the above 

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10. The gears are used to transfer power between perpendicular shafts without a change in revolutions are _____ gears. 

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A. bevel

B. worm 

C. spur 

D. pinion 

E. miter 

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11. The revolutions of a gear can be transferred into linear motion by a 

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A. prawl

B. idler

C. spur gear

D. pinion

E. racks 

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12. Pinion gears are often made of strong materials becasue they

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A. are smaller 

B. are longer 

C. have more tooth contact

D. have less tooth contact

E. run at variable speeds

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13. Detailed representation of gear teeth may be used for gears shown in drawings. 

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A. detail

B. Assembly 

C. fabrication 

D. any of the above

E. none of the above

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14. The maximum speed for operation of a gear drive is usually _____ a chain drive.

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A. lower than

B. higher than

C. equal to

D. not compared to

E. variable when compared 

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