MATSE 259 - Exam 1 with Questions and Correct Answers Latest Update 2025.

MATSE 259 - Exam 1 with Questions and
Correct Answers Latest Update 2025




What ,,are ,,atoms ,,made ,,up ,,of? ,,- ,,CORRECT ,,ANSWER-Electrons, ,,protons, ,,and
,,neutrons


Property ,,of ,,a ,,material ,,that ,,would ,,help ,,in ,,an ,,electrical ,,application ,,-
,,CORRECT ,,ANSWER-Electrical ,,conductivity


In ,,compression ,,test, ,,the ,,strain ,,that ,,develops ,,in ,,the ,,loading ,,axis ,,is
,,(positive/negative/neutral) ,,- ,,CORRECT ,,ANSWER-negative


How ,,to ,,calculate ,,axial ,,stress ,,"S" ,,- ,,CORRECT ,,ANSWER-S=E*e

What ,,is ,,engineering ,,stress? ,,- ,,CORRECT ,,ANSWER-Engineering
,,Stress=Force/instantaneous ,,area


What ,,is ,,true ,,stress? ,,- ,,CORRECT ,,ANSWER-True ,,stress=S(1+e)

What ,,is ,,engineering ,,strain? ,,- ,,CORRECT ,,ANSWER-engineering ,,strain=dL/L

What ,,is ,,True ,,Strain? ,,- ,,CORRECT ,,ANSWER-true ,,strain=ln(1+e)

What ,,point ,,on ,,the ,,stress ,,strain ,,curve ,,does ,,necking ,,start ,,to ,,occur? ,,-
,,CORRECT ,,ANSWER-Ultimate ,,tensile ,,strength ,,(UTS)


What ,,are ,,Luder's ,,Bands? ,,- ,,CORRECT ,,ANSWER-The ,,generation ,,of
,,approximate ,,constant ,,stress ,,at ,,yield ,,point ,,for ,,some ,,strain ,,length ,,due ,,to
,,pinning ,,and ,,unpinning ,,effects. ,,Thisresults ,,in ,,non-uniform ,,deformation.


If ,,a ,,material ,,is ,,subjected ,,to ,,two ,,incremental ,,true ,,strains ,,namely ,,e1 ,,and ,,e2,
,,then ,,the ,,total ,,true ,,strain ,,is: ,,- ,,CORRECT ,,ANSWER-e1+e2


Which ,,one ,,of ,,the ,,following ,,is ,,a ,,secondary ,,bond?

Ionic
Permanent ,,Dipole ,,Bond
Covalent ,,Bond

, Metallic ,,Bond ,,- ,,CORRECT ,,ANSWER-Permanent ,,Dipole ,,Bond

A ,,mechanical ,,property ,,that ,,measures ,,the ,,degree ,,of ,,plastic ,,deformation ,,-
,,CORRECT ,,ANSWER-Ductility


How ,,do ,,metallic ,,bonds ,,form? ,,- ,,CORRECT ,,ANSWER-The ,,non-valence
,,electrons ,,and ,,the ,,nucleus ,,form ,,ion ,,cores ,,and ,,have ,,positive ,,charge.


What ,,is ,,elastic ,,recovery? ,,- ,,CORRECT ,,ANSWER-After ,,a ,,load ,,is ,,removed
,,from ,,a ,,specimen, ,,the ,,specimen ,,begins ,,to ,,return ,,to ,,it's ,,original ,,position.


Which ,,bonds ,,are ,,directional? ,,- ,,CORRECT ,,ANSWER-Covalent

What ,,are ,,the ,,properties ,,of ,,Ionic ,,Bonds? ,,- ,,CORRECT ,,ANSWER-High ,,Bond
,,NRG
High ,,Melting ,,temperature
Hard
Brittle
Insulator

What ,,are ,,the ,,properties ,,of ,,Covalent ,,Bonds? ,,- ,,CORRECT ,,ANSWER-Similar
,,electronegativity
High ,,melting ,,temp/bond ,,NRG
Brittle
Insulator

What ,,are ,,the ,,properties ,,of ,,Metallic ,,Bonds? ,,- ,,CORRECT ,,ANSWER-Conductor
Ductile
Hard
Varying ,,melting ,,temp

Strongest ,,secondary ,,bonds ,,- ,,CORRECT ,,ANSWER-Permanent ,,dipole ,,bonds

Weakest ,,secondary ,,bonds ,,- ,,CORRECT ,,ANSWER-Fluctuating ,,Induced ,,Dipole
,,Bonds


Are ,,metallic ,,crystal ,,structures ,,densely ,,packed? ,,- ,,CORRECT ,,ANSWER-Yes

4 ,,types ,,of ,,crystal ,,structures ,,- ,,CORRECT ,,ANSWER-Simple ,,Cubic ,,(SC)
Body-Centered ,,Cubic ,,(BCC)
Face-Centered ,,Cubic ,,(FCC)
Hexagonal ,,Close-Packed ,,(HCP)

Density ,,of ,,ceramics, ,,polymers, ,,and ,,metals ,,- ,,CORRECT ,,ANSWER-
p_metals>p_ceramics>p_polymers