Term
| What is the unit symbol for Degrees? Minutes? Seconds? |
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Definition
Degrees = °
Minutes = '
Seconds = " |
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Term
| How do you read a plate protractor? |
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Definition
| Read the scale by noting where the index line on the rule crosses the protractor scale. Be careful to choose the appropriate scale. |
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Term
| What is the discrimination of a universal bevel protractor? What scale does it use to reach this degree of accuracy? |
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Definition
| The universal bevel protractor can read to 5 minutes of a degree. It uses a vernier scale to achieve this accuracy. |
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Term
| How is a universal bevel protractors vernier scale read? |
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Definition
| In the same direction you read the main scale (clockwise/counter-clockwise) |
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Term
| How are continuous dial indicators read? |
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Definition
| In one direction. They are ready when the plunger moves in and out from the dial. |
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Term
| How are balanced (aka dial test) indicators read? |
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Definition
| In two directions. They read when the arm rotates up or down from the pivot point. |
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Term
| What are the 3 grades of gauge blocks? |
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Definition
AA/Grade 1 - Lab/Master Set
A /Grade 2 - Inspection
B /Grade 3 - Working Set |
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Term
| What is the typical thickness of wear blocks? |
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Definition
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Term
| What are the steps for setting up gauge blocks? |
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Definition
Step 1: Use two wear blocks of either 0.1000 each or 0.0500 each.
Step 2: Use the first series to eliminate the last digit.
Step 3: Use the second series to eliminate the second and third digit if possible, or at the very least make the second digit a 5.
Step 4: Use the third series to remove the first and second digit if it is still a 5.
Step 5: Use the last series to remove the last digit.
Step 6: Add the gauge blocks together and double check your math. |
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Term
| How do you put gauge blocks together? |
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Definition
| By wringing them tightly against eachother |
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Term
| What are precision squares used for? |
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Definition
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Term
| What is the most accurate square? |
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Definition
| A master precision square. Either a standard cylindrical square or a direct reading cylindrical square. |
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Term
The acute angle attachment on the universal bevel protractor is:
a) used for angles less than 90 degrees
b) used for angles between 90 degrees and 180 degrees
c) where the vernier is read
d) able to give accurate readings |
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Definition
| a) The acute angle attachment on the universal bevel protractor is used for angles less than 90 degrees |
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Term
The discrimination of the universal bevel protractor is:
a) 5 degrees
b) 1 degree
c) 5 inches
d) 5 minutes |
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Definition
| d) The discrimination of the universal bevel protractor is 5 minutes. |
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Term
The discrimination of a bevel protractor is:
a) 5 degrees
b) 1 degree
c) 5 inches
d) 5 minutes |
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Definition
| b) The discrimination of a bevel protractor is 1 degree. |
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Term
Sine bar cylindrical rollers are:
a) usually not hardened
b) only used when accuracy is required
c) 6" or 12" between centres
d) 5" or 10" between centres |
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Definition
| d) Sine bar cylindrical rollers are 5" or 10" between centres. |
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