Measurement
Decimal/Fractions
Terminology
Technical Info
Sara's Choice
100

List 4 types of micrometers

inside, outside, depth, thread pitch, Vernier, standard

100

1/16

.0625

100

Describe the term "feel" in reference to precision measurement.

slight metal to metal contact
100


Explain each of the following items: (6 points) 1/4-20 UNC RH-1A

  1. 1/4-__________________________________________

  2. 20__________________________________________

  3. UNC_________________________________________

  4. RH-__________________________________________

  5. 1__________________________________________

6. A_________________________________________



major diameter

tpi

unified national course

right hand

class of fit

external

100
What % of coco content is the minimum requirement to Sara's liking?

dark chocolate (minimum 60 % coco content), it can be in combination with nuts, coffee, peanut butter, but not fruit or bacon

200

The universal dial caliper can be used to take 4 types of measurements. List them:

outside

inside

depth

step

200

.093

3/32

200

Explain the difference between direct and indirect measurement

direct reading tools read directly from a graduated tool

indirect tools are a comparison or transfer measurement

200

what is the national standard for measurement and inspection in Fahrenheit and Celsius?

68 degrees F

20 degrees C

200

What is Sara's Philosophy about helping students outside of class?

1. Schedule an appointment

2.  She will put as much effort into helping you, as you do yourself

300

Name the parts of a micrometer

300

5/16

.3125

300

give an example of a direct reading measurement tool

steel rule, dial calipers, micrometer

300

how many mm equal 1 inch

25.4mm = 1 inch

300

What is the motto for this hairstyle?


business in the front, party in the back

400

Name 5 semi-precise measurement tools:

protrator

combination set

steel rule

screw pitch gage

radius or fillet gages

400

.9375

15/16

400

give an example of an indirect reading measurement tool

comparison or transfer measurement, small hole gages, telescoping gages, screw pitch gage, fillet gage

400

What trigonometric function do you use to solve a gage block build up?

sine of an angle

400

What is the longest running sitcom of all time?

google says: the simpsons (1989-present)

500

Name 5 precise measurement tools:

micrometers

telescoping gages

small holes gages

pin gages

gage blocks

height gage

optical comparitor

500

11/16

.6875

500

What is meant by the term reliability and repeatability in reference to precision measurement

reliability-ability of the measuring tool to give you the same measurement over and over

repeatability- ability of the person measuring to obtain the same measurement over and over

500

List two criteria in how to select the proper size for an outside micrometer in terms of how they are classified.

accuracy (standard or vernier)

range (0-1, 1-2 etc)

500

What is the largest coal mine in United States?

 Black Thunder, Wright Wyoming

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