What is the primary purpose of the Rockwell Hardness Test?
Rockwell Hardness Test Quiz

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University
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Julio Cesar Dutra
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To measure the color of a material
To determine the weight of a material
To calculate the temperature of a material
To measure the permanent depth of indentation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of indenter is used in the Rockwell Hardness Test Scale C?
A steel ball
A rounded cone made of diamond
A flat plate
A cylindrical rod
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the minor force applied in the first step of the Rockwell Hardness Test?
100 kilo pawns
10 kilo pawns
50 kilo pawns
20 kilo pawns
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much is the test force increased by in the second step of the Rockwell Hardness Test?
100 kilo pawns
200 kilo pawns
140 kilo pawns
50 kilo pawns
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for calculating Rockwell Hardness HRC?
HRC = 0.1 - permanent depth of indentation in millimeters times 600
HRC = 0.3 - permanent depth of indentation in millimeters times 400
HRC = 0.5 - permanent depth of indentation in millimeters times 200
HRC = 0.2 - permanent depth of indentation in millimeters times 500
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in setting up the testing machine?
Adjusting the test piece
Rotating the microscope lens
Installing the conical diamond indenter
Picking up the gear wheel
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be done after placing the gear wheel on the support table?
Increase the test force
Rotate the microscope lens to its vertical position
Start the test immediately
Remove the gear wheel
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