Top 1000+ Solved Material Science MCQ Questions Answer
Q. The horizontal cracks sre detected inmagnaflux test by
a. circular magnetizatio n
b. longitudinal magnetizatio n
c. demagnetization
d. all of theabove
Q. The circular cracks are detected in magnafluxtest by
a. circular magnetizatio n
b. longitudinal magnetizatio n
c. demagnetization
d. all of theabove
Q. The purpose of developer is to make thepenetrant
a. in the crack invisible
b. in the crackvisible
c. chemically highly reactive
d. all of theabove
Q. If the care is not taken during magnaflux testthen. .... is possible
a. local heating and sparking
b. explosion
c. harmful uvradiation
d. none
Q. Response of eddy current is depends upon
a. magnetic permeability
b. electrical conductivity
c. structural defects
d. all of theabove
Q. The result can be recorded by permanently in
a. magnafluxtest
b. eddy currenttest
c. dye penetrant test
d. radiography
Q. The crack depth measurement is possible in
a. magnafluxtest
b. eddy currenttest
c. ultrasonictest
d. both b and c
Q. Measurement of the electric cunductivity of silver plated electrical contact is possible by
a. magnaflux test
b. eddy currenttest
c. ultrasonictest
d. both b and c
Q. Flouroscent is used in NDT
a. ultrasonic
b. eddy current
c. radiography
d. dye penetrant and magnaflu x
Q. AC is used in magnaflux test to detect
a. surface defect
b. surface and sub surface defect
c. internal defects
d. subsurfacedefect
Q. DC is used in magnaflux test to detect
a. surface
b. surface and surface
c. internal
d. sub surface
Q. X-rays are produced by stricking
a. agains t surface defect
b. electrons against anode
c. magnetic field material
d. electrons against cathode
Q. Radioactive decay of radium and saltwill cause generation of
a. ultrasonic waves
b. magnetic waves
c. gamma rays
d. x-rays and gamma rays