Top 1000+ Solved Material Science MCQ Questions Answer
Q. In magnaglo, the wavelength of ultravioletlight is
a. 2500 to 3000a°
b. 3500 to 4000a°
c. 4500 to 5000a°
d. none of theabove
Q. ...........does not damage the workpiece.
a. creep and fatigue
b. brinell and rockwell
c. tensile and erichson test
d. none
Q. ...........test does not damage the workpiecewhile testing
a. magnaflu
b. hardness
c. bend
d. torsion
Q. The defects like mould shifts,surface roughness,blow holes etc can be easily detected by ......... method.
a. radiography
b. visual inspection
c. eddy current
d. ultrasonic
Q. ...........is commonly used for visual inspectionmethod
a. boroscope
b. optical microscope
c. endoscope
d. telescope
Q. ........is used to inspect the inside portion of a hollow chamber,narrow tube or a bore
a. boroscope
b. optical microscope
c. endosope
d. telescope
Q. Oil couplant used in the ultrasonic test to
a. make surfacesmooth
b. avoid air gap
c. reduce friction
d. fill the surface flaws
Q. Which type of the test is mostly used for the inspection of the grinding and fatigue cracks on tool steeel?
a. magnaflux
b. ultrasonic
c. radiography
d. eddy current
Q. Dimension and accuracy in the products maybe checked by
a. dye penetrant
b. magnaflux
c. radiography
d. eddy current
Q. Level of liquid in the sealed container may bechecked by
a. magnaflux
b. dye penetrant
c. radiography
d. eddy current
Q. Internal defects inthe steel componentcannot be detected by
a. magnaflux
b. radiography
c. ultrasonic
d. none
Q. Which one may be used as material for transducer in ultrasonic test?
a. steel
b. quartz
c. polymer
d. none
Q. Eddy current test may be used to find out
a. defect
b. type of the heat treatment given to material
c. change in chemical composition
d. all of theabove
Q. Principle of operation of eddy current test isbased on the
a. developmentof emf
b. types of current supplied to the material
c. piezoelectricity
d. ferroelectricity
Q. Which one is not a part of magnafluxprocess?
a. surface preparation
b. magnetization
c. demagnetization
d. observation under microscope