Importance of Studying Atomic Structure in Engineering Materials

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What is the electrical charge of a neutron?

1.602 × 10-19 C

0 C (correct)

-1.602 × 10-19 C

1 C

Which subatomic particle has the smallest mass?

Proton

They all have the same mass

Electron (correct)

Neutron

What is the atomic mass of an atom?

Number of protons plus number of neutrons

Number of protons plus number of electrons (correct)

Number of protons

Number of electrons

Which subatomic particle is responsible for the atomic number of an atom?

Proton Signup and view all the answers

How does atomic structure affect the properties and behavior of engineering materials?

It affects the types of bonds in materials Signup and view all the answers

What is the maximum number of electrons that can be held in the third shell of an atom?

18 Signup and view all the answers

Which bond type involves the transfer of electrons from one elemental atom to another, resulting in ions?

Ionic bond Signup and view all the answers

What is the atomic number of uranium?

92 Signup and view all the answers

What are the electrons in the outermost filled shell called?

Valence electrons Signup and view all the answers

What is Avogadro’s number?

$6.023 \times 10^3$ (atoms/mole) Signup and view all the answers

What is the main target of using all the laboratory testing devices mentioned?

To determine the load-deformation relationship for calculating material mechanical properties Signup and view all the answers

What is the function of a proving ring among the laboratory testing devices?

To apply the load on the test specimen and measure the load with required accuracy Signup and view all the answers

What is the purpose of a dial gauge in laboratory testing devices?

To measure the deflection or deformation of different elements Signup and view all the answers

What is the role of an LVDT (Linear Variable Differential Transformer) in laboratory testing devices?

To measure the axial deformations of the axially loaded elements Signup and view all the answers

In which laboratory testing device are most gauges attached to frames or holders, and most have two scales?

Dial Gauges Signup and view all the answers

What is the purpose of an LVDT?

To measure small movements or deformations of test specimens Signup and view all the answers

What is the relationship between the core position and output voltage in an LVDT?

Proportional Signup and view all the answers

What is the main factor affecting the electric resistance of a strain gauge?

The gauge's cross-sectional area Signup and view all the answers

In what scenario can a mechanical dial gauge be used?

Reading measurements from both static and dynamic loads Signup and view all the answers

What is the function of the non-magnetic shell in an LVDT?

To contain the primary and secondary electric coils Signup and view all the answers