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This set of Material Science Multiple Choice Questions & Answers (MCQs) focuses on Material Science Set 27
Q1 | bend test is used to find
- hardness of material
- shear strength of material
- ductility of material
- all of the above
Q2 | in beam cross-sections,the axis along which the bending stresses are zero, is called as axis
- bending
- parallel
- perpendicular
- neutral
Q3 | for materials having high ductility, type of bend test is used
- close
- angle
- 1800
- cold
Q4 | in type of bend test, specimen is held at two points and load is applied at the center
- close
- angle
- 1800
- cold
Q5 | the diameter of punch used in cold bend test depends upon
- thickness of specimen
- width of specimen
- distance betweensupporting
- all of the above
Q6 | 1800 bend test is also called as
- close bendtest
- reverse bendtest
- angle bendtest
- forward bendtest
Q7 | impact test is also called as test
- dynamic
- fatigue
- creep
- static
Q8 | the tendancy of ductile material to fail as brittle material when it is notched is called as
- stress concentratio n
- notch concentratio n
- notch sensitivity
- surface preparation
Q9 | the temperature at which ductlie material fails in brittle manner is called as temperature
- recrystallization
- creep
- fatigue
- transiiton
Q10 | the factor which is responsible for failure of ductile material in brittle manner is
- triaxial state of stress
- high strainrate
- low temperature
- all of the above
Q11 | impact test is used for measuring the
- hardness
- toughness
- stiffness
- all of the above
Q12 | the sucspectbility of material for brittle fracture under triaxia state of stress is found by test
- fatigue
- hardness
- impact
- creep
Q13 | in impact test, specimens are used
- notched
- bend
- circular
- all of the above
Q14 | the notch provided on impact test specimenis of shape
- i
- t
- v
- l
Q15 | in charpy impact test, the weight of pendulum is
- 21.79 kg
- 20.93 kg
- 31.25 kg
- 18.73 kg
Q16 | in izod imapct test, the weight of pendulum is
- 21.79 kg
- 20.93 kg
- 31.25 kg
- 18.73 kg
Q17 | the length of arm of pendulum in izod test is
- 0.825 m
- 0.758 m
- 0.953 m
- 0.625 m
Q18 | the length of arm of pendulum in charpy testis
- 0.825 m
- 0.758 m
- 0.953 m
- 0.625 m
Q19 | in charpy impact test, the pendulum is released from an angle of degree
- 120
- 130
- 140
- 85
Q20 | in izod impact test, the pendulum is released from an angle of degree
- 120
- 130
- 140
- 85
Q21 | in charpy test, the size of specimen is mm
- 10x10x75
- 10x10x35
- 10x10x55
- 10x10x45
Q22 | in izod imapct test, the size of specimen is mm
- 10x10x75
- 10x10x35
- 10x10x55
- 10x10x45
Q23 | during the imapct test the toughness of material is given by
- w(h+h\)
- 2w(h\-h)
- 2w(h-h\)
- w(h\-h\)
Q24 | in charpy test, specimen with notch is used
- key hole
- u
- v
- all of the above
Q25 | in charpy impact test, the length of specimen between he anvils is
- 40 mm
- 47 mm
- 55 mm
- 75 mm