Top 1000+ Solved Material Science MCQ Questions Answer
Q. bend test is used to find
a. hardness of material
b. shear strength of material
c. ductility of material
d. all of the above
Q. in beam cross-sections,the axis along which the bending stresses are zero, is called as axis
a. bending
b. parallel
c. perpendicular
d. neutral
Q. in type of bend test, specimen is held at two points and load is applied at the center
a. close
b. angle
c. 1800
d. cold
Q. the diameter of punch used in cold bend test depends upon
a. thickness of specimen
b. width of specimen
c. distance betweensupporting
d. all of the above
Q. 1800 bend test is also called as
a. close bendtest
b. reverse bendtest
c. angle bendtest
d. forward bendtest
Q. the tendancy of ductile material to fail as brittle material when it is notched is called as
a. stress concentratio n
b. notch concentratio n
c. notch sensitivity
d. surface preparation
Q. the temperature at which ductlie material fails in brittle manner is called as temperature
a. recrystallization
b. creep
c. fatigue
d. transiiton
Q. the factor which is responsible for failure of ductile material in brittle manner is
a. triaxial state of stress
b. high strainrate
c. low temperature
d. all of the above
Q. the sucspectbility of material for brittle fracture under triaxia state of stress is found by test
a. fatigue
b. hardness
c. impact
d. creep