Top 1000+ Solved Material Science MCQ Questions Answer
Q. dummy pointer on load - cell is used toindicate
a. yield load
b. breaking load
c. ultimate load
d. none of theabove
Q. after ultimate stress, stress goes on
a. reducing
b. increasing
c. stabilised
d. all of the above
Q. all the calculations in tensile test are carried out on a particular distance which is called as
a. gauge length
b. gause length
c. gase length
d. none of theabove
Q. any sudden change in cross section leads to the formaiton of area
a. stiff
b. stres concentratio n
c. any one ofabove
d. none of theabove
Q. the graphical representation of results of tensile test is known as
a. stress straincurve
b. s-n curve
c. creep curve
d. none of theabove
Q. in engineering stress we consider
a. original crosssection
b. instantaneou s cross section
c. cross section after the test
d. none of theabove
Q. during the tensile test, the length of specimen and its cross section area
a. increases, increases
b. decreases, increases
c. increases, decreases
d. decreases, decreases
Q. the test which come under the group of destructive tests is
a. dye penetrant test
b. ultrasonictest
c. eddy currenttest
d. none of theabove
Q. the tests which come under the group of destructive tests are
a. tensile and compressive test
b. shear and bend test
c. impact and fatigue test
d. any one ofabove
Q. the material which does not show the predefined yield stress, the yield stress can be determined by
a. prone stress method
b. proof stress method
c. any one ofabove
d. none of theabove
Q. the relation between true strain and engineering strain is
a. e=ln(1+et)
b. et=ln(1+2e)
c. et=ln(1-2e)
d. et=ln(1+e)
Q. property is not directly shown onthe stress strain curve
a. ductility
b. malleability
c. stiffness
d. all of the above
Q. is maximum value of stress upto which stress is directly proportional to strain
a. elastic limit
b. proportionallimit
c. yield stress
d. all of the above
Q. is the stress at which material shows a specified amount of plastic deformation
a. yirld pointstress
b. proportionallimit
c. proof stress
d. ultimate tensile stress