Question 1

The projection from one or both faces that occurs in some gears is called the bore.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is not a basic type of cam?

Accepted Answer

A)  knife-edge cam 
B)  plate cam 
C)  face cam 
D)  drum cam 
E)  none of the above 
A)  knife-edge cam 
B)  plate cam 
C)  face cam 
D)  drum cam 
E)  none of the above

Question 3

Gears are rugged and durable and can transmit power with up to _____ efficiency with long service life.

Accepted Answer

A)  80% 
B)  90% 
C)  98% 
D)  100% 
E)  none of the above 
A)  80% 
B)  90% 
C)  98% 
D)  100% 
E)  none of the above

Question 4

Which one of the following types of gears is commonly used when a large speed reduction is required in a small space?

Accepted Answer

A)  helical gears 
B)  worm gears 
C)  hypoid gears 
D)  crossed helical gears 
E)  none of the above 
A)  helical gears 
B)  worm gears 
C)  hypoid gears 
D)  crossed helical gears 
E)  none of the above

Question 5

Simple harmonic motion and constant velocity motion can both be used at high speeds.

Accepted Answer

A) True 
 B)False

Question 6

Identify the type of motion, also known as straight-line motion, used for the feed control of some machine tools when it is required for the follower to rise and fall at a uniform rate, and is only used at slow speeds because of the abrupt change at the beginning and end of the motion period.

Accepted Answer

Constant v

Question 7

Identify the type of motion designed to reduce the abrupt change at the beginning and end of a period. It is recommended for moderate speeds, especially when associated with a dwell. The advantage of this motion is its use when constant acceleration for the first half of the rise and constant deceleration for the second half of the rise are required.

Accepted Answer

Uniform ac

Question 8

Dwell exists when a cam follower is constant without moving either up or down.

Accepted Answer

A) True 
 B)False

Question 9

The size of teeth of a gear can be found if given the proper type of information. For example, the circular pitch of the gear is equal to p (3.1416) divided by the diametrical pitch, and the outside diameter is equal to the pitch diameter added to twice the amount of the dedendum. The trick is to know which pieces of information will help find the answer in the least amount of time. If you are given values to any of the answers below, you will be able to find the size of teeth of this particular gear. Which one will give you the answer in the least amount of time?

Accepted Answer

A)  You are given the circular thickness. 
B)  You are given the addendum and the whole depth. 
C)  You are given the circular pitch and the number of teeth. 
D)  You are given the number of teeth, the pitch diameter, and the diametrical pitch. 
E)  You are given the outside diameter, the addendum, the whole depth, and the number of teeth 
A)  You are given the circular thickness. 
B)  You are given the addendum and the whole depth. 
C)  You are given the circular pitch and the number of teeth. 
D)  You are given the number of teeth, the pitch diameter, and the diametrical pitch. 
E)  You are given the outside diameter, the addendum, the whole depth, and the number of teeth

Question 10

Crossed helical gears, which provide for nonintersecting right angle shafts with low load carrying capabilities, are the only mating gears that rotate the same direction.

Accepted Answer

A) True 
 B)False

Question 11

End thrust is a disadvantage of helical gears.

Accepted Answer

A) True 
 B)False

Question 12

Bearings are dimensioned in relation to the bore diameter, outside diameter, and the width.

Accepted Answer

A) True 
 B)False

Question 13

Chordal thickness is the straight line thickness of a gear tooth on the pitch circle.

Accepted Answer

A) True 
 B)False

Question 14

There is a gear ratio of 3:1 between a pair of gears. The pinion gear has 18 teeth. How many teeth does the other gear have?

Accepted Answer

A)  6 teeth 
B)  9 teeth 
C)  36 teeth 
D)  54 teeth 
E)  both a and d 
A)  6 teeth 
B)  9 teeth 
C)  36 teeth 
D)  54 teeth 
E)  both a and d

Question 15

When two gears are in mesh, the larger is called the pinion and the smaller is called the gear.

Accepted Answer

A) True 
 B)False

Question 16

Bevel gears are similar to hypoid gears in that the gear shaft axes in both types intersect.

Accepted Answer

A) True 
 B)False

Question 17

Cluster gears always turn in the same direction.

Accepted Answer

A) True 
 B)False

Question 18

Mating spur gear teeth have the same diametrical pitch.

Accepted Answer

A) True 
 B)False

Question 19

Mechanical devices and machines have arrangements of parts called mechanisms.

Accepted Answer

A) True 
 B)False

Question 20

What is a gear and for what is it used?

Accepted Answer

Toothed wheels used

The projection from one or both faces that occurs in some gears is called the bore.

Which of the following is not a basic type of cam?

Gears are rugged and durable and can transmit power with up to _____ efficiency with long service life.

Which one of the following types of gears is commonly used when a large speed reduction is required in a small space?

Simple harmonic motion and constant velocity motion can both be used at high speeds.

Identify the type of motion, also known as straight-line motion, used for the feed control of some machine tools when it is required for the follower to rise and fall at a uniform rate, and is only used at slow speeds because of the abrupt change at the beginning and end of the motion period.

Dwell exists when a cam follower is constant without moving either up or down.

Crossed helical gears, which provide for nonintersecting right angle shafts with low load carrying capabilities, are the only mating gears that rotate the same direction.

End thrust is a disadvantage of helical gears.

Bearings are dimensioned in relation to the bore diameter, outside diameter, and the width.

Chordal thickness is the straight line thickness of a gear tooth on the pitch circle.

There is a gear ratio of 3:1 between a pair of gears. The pinion gear has 18 teeth. How many teeth does the other gear have?

When two gears are in mesh, the larger is called the pinion and the smaller is called the gear.

Bevel gears are similar to hypoid gears in that the gear shaft axes in both types intersect.

Cluster gears always turn in the same direction.

Mating spur gear teeth have the same diametrical pitch.

Mechanical devices and machines have arrangements of parts called mechanisms.

What is a gear and for what is it used?

Introduction to Engineering and Manufacturing Technology Print Reading

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Reading Sections, Revolutions, and Conventional Breaks

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Exam 12: Reading Linkage, Cam, Gear, and Bearing Prints

The projection from one or both faces that occurs in some gears is called the bore.

Which of the following is not a basic type of cam?

Gears are rugged and durable and can transmit power with up to _____ efficiency with long service life.

Which one of the following types of gears is commonly used when a large speed reduction is required in a small space?

Simple harmonic motion and constant velocity motion can both be used at high speeds.

Identify the type of motion, also known as straight-line motion, used for the feed control of some machine tools when it is required for the follower to rise and fall at a uniform rate, and is only used at slow speeds because of the abrupt change at the beginning and end of the motion period.

Dwell exists when a cam follower is constant without moving either up or down.

Crossed helical gears, which provide for nonintersecting right angle shafts with low load carrying capabilities, are the only mating gears that rotate the same direction.

End thrust is a disadvantage of helical gears.

Bearings are dimensioned in relation to the bore diameter, outside diameter, and the width.

Chordal thickness is the straight line thickness of a gear tooth on the pitch circle.

There is a gear ratio of 3:1 between a pair of gears. The pinion gear has 18 teeth. How many teeth does the other gear have?

When two gears are in mesh, the larger is called the pinion and the smaller is called the gear.

Bevel gears are similar to hypoid gears in that the gear shaft axes in both types intersect.

Cluster gears always turn in the same direction.

Mating spur gear teeth have the same diametrical pitch.

Mechanical devices and machines have arrangements of parts called mechanisms.

What is a gear and for what is it used?

Introduction to Engineering and Manufacturing Technology Print Reading

Communicating with a Sketch

Scales and Precision Measurement

Reading Lines and Lettering on a Print

Reading Multiviews

Reading Auxiliary Views

Manufacturing Materials and Processes

Reading Dimensions

Reading Prints With Fasteners and Springs

Reading Sections, Revolutions, and Conventional Breaks

Reading Geometric Dimensioning and Tolerancing

Reading Precision Sheet Metal Prints

Reading Prints of Working Drawings

Welding Processes and Reading Welding Representations

Reading Prints of Pictorial Drawings

Reading Electrical Diagrams and Schematics

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