Brinell Hardness Test Procedures

The video tutorial explains the Brenel hardness test, focusing on measuring the hardness of a turbocharger housing. It covers familiarization with the testing machine, including its components like the control panel, microscope lens, and indentor. The tutorial details the procedure for conducting the test, from selecting the indentor to measuring the indentation and calculating the hardness value. The process involves pressing a spherical indentor onto the test piece, observing the indentation, and using the machine to compute the hardness value, which is displayed on the screen.

What is the primary purpose of the Brinell hardness test?

• To assess the thermal conductivity of a material

• To calculate the density of a material

• To determine the hardness of a material

• To measure the elasticity of a material

Which components are located in the upper part of the testing machine?

• The microscope lens and digital camera

• The support table and indentor

• The power supply and cooling system

• The monitor and control panel

What is the function of the microscope lens in the testing machine?

• To rotate the test piece

• To focus on the test piece surface

• To measure the temperature of the test piece

• To apply force to the test piece

What must be done before starting the Brinell hardness test?

• Adjust the room temperature

• Replace the microscope lens

• Select a suitable spherical indentor

• Calibrate the digital camera

How is the test piece positioned correctly for the Brinell hardness test?

• By rotating the control panel

• By adjusting the support table height

• By moving the digital camera

• By changing the indentor

What happens when the start button is pressed during the test?

• The test piece is removed

• The hardness value is displayed

• The test procedure begins

• The machine shuts down

How is the test force applied to the test piece?

• Suddenly and with a shock

• Gradually and shock-free

• Intermittently and with pauses

• Rapidly and with high pressure

What is used to measure the diameter of the indentation?

• A digital caliper

• A laser pointer

• A control knob

• A ruler

How is the Brinell hardness value calculated?

• By dividing the test force by the indentation area

• By multiplying the test force by the indentation area

• By adding the test force to the indentation area

• By subtracting the test force from the indentation area

Where is the Brinell hardness result displayed?

• On the bottom left corner of the screen

• On the bottom right corner of the screen

• On the top right corner of the screen

• On the center of the screen