Top 1000+ Solved Material Science MCQ Questions Answer
Q. the main purpose of erichsen cupping test isto measure
a. hardness of material
b. shear strength of material
c. ductility of material
d. all of the above
Q. in erichsen cupping test, a sample of sheet metal is deep drawn and its is measured
a. diameter
b. area
c. volume
d. depth
Q. erichsen cupping test machine consists of parts
a. punch anddie
b. micrometerdial
c. mirror for cup onservation
d. all of the above
Q. in test , a specimen is in the formof sheet
a. tensile
b. compression
c. erichsen cupping
d. torsion
Q. the sheet metal thickness for erichsen cupping test is in the range of
a. 5 to 10 mm
b. 2.5 to 5 mm
c. 0.25 to 2.5mm
d. 2.5 to 7.5mm
Q. in erichsen cupping test for measuring the depth of cup is used
a. mirror
b. micrometerdial
c. extensometer
d. load dial
Q. radial and circular cracks are observed in test
a. torsion
b. tensile
c. erichsen cupping
d. compression
Q. when the metal fails with radial cracks, it indicates ability
a. good drawing
b. poor drawing
c. high stiffness
d. high rigidity
Q. when the metal fails with circular cracks, it indicates ability
a. good drawing
b. poor drawing
c. high stiffness
d. high rigidity
Q. a 40 cm long rod of diameter 0.3 cm is subjected to 2 kN load. If the diameter of rod
a. 1.44
b. 0.2
c. 0.36
d. 0.167
Q. Following point is not applicable for NDTs
a. detection of surface defects
b. detection of internal defects
c. evaluation of mechanical properties
d. seperaion of components
Q. Which of the following is true for Magneticparticle inspection
a. material must be ferromagneti c
b. plastics can be tested
c. applicabl e for all materials
d. none of theabove
Q. Longitudinal Magnetisation is used to detect
a. transeversecracks
b. longitudina l cracks
c. any typeof cracks
d. not used for detecting cracks
Q. Transeverse Magnetisation is used to detect
a. transeversecracks
b. longitudina l cracks
c. any typeof cracks
d. not used for detecting cracks