20 Questions
What is the main target of using measuring devices in the context of this text?
To determine the load-deformation relationship
Which device is used to apply the load on the test specimen and measure this load with the required accuracy?
Load Cells
What is the purpose of a dial gauge in the context of this text?
To measure the deflection or deformation of different elements
What type of testing machine is used for measuring tension and compression?
Universal testing machine
Which device has two scales and is used to measure the deflection or deformation of different elements?
Dial Gauges
What is the function of an LVDT in laboratory testing?
To measure the axial deformations of axially loaded elements
What is the primary purpose of a strain gauge in laboratory testing?
To measure small deformations within a certain gauge length
What does an extensometer measure in laboratory testing?
Axial deformations of axially loaded elements
What is the purpose of the metallic part in an LVDT?
To obtain output voltage when moved across a magnetic field
What are the advantages of using an electrical strain gauge over a mechanical dial gauge?
Small device and very high accuracy and precision
What is the purpose of a strain gauge in laboratory testing?
To measure the electric resistance changes proportionally as the surface deforms
Which device is used to measure the axial deformations of axially loaded elements?
Extensometer
What is the main function of an LVDT in laboratory testing?
To measure the metallic part moving across a magnetic field
Which device is used to detect the change in resistance as the surface deforms?
Strain Gauge
What is the purpose of the metallic core in an LVDT?
To move across a magnetic field and generate an output voltage
What is the role of a load cell in laboratory testing?
Applying the load on the test specimen and measuring this load with the required accuracy
Which type of testing machine is designed for applying load in a bending test?
Compression testing machine
What is the primary function of an LVDT in laboratory testing?
Measuring the deformation of different elements
What is the purpose of a proving ring in laboratory testing?
Calibrating dial gauges
What is the main target of using dial gauges in laboratory testing?
Measuring the deflection of different elements
This quiz covers the structures and properties of materials relating to the use of measuring devices in engineering. It includes topics such as laboratory testing devices like testing machines, dial gauges, LVDT, strain gauges, and proving rings, and their functions in determining load-deformation relationships and material mechanical properties.
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