The Size of Teeth of a Gear Can Be Found

question 49

Multiple Choice

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?

• 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

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Definitions:

Standard Error

A measure of the statistical accuracy of an estimate, reflecting the standard deviation of the sampling distribution of a statistic.

Sampling Distribution

The distribution of a statistic (e.g., mean) computed from samples of a specific size drawn from a particular population.

Sampling Distribution

The probability distribution of a statistic obtained through a large number of samples drawn from a specific population.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a low standard deviation indicates that the values tend to be close to the mean.