Top 150+ Solved Metrology and Measurements MCQ Questions Answer
Q. Which of the following is used to check change in ocular lines position due to column rotation in universal micrometer?
a. dial indicator
b. slip gauges
c. control shaft
d. universal microscope
Q. How 34’ can be built by using angle gauges?
a. 27’+9’-3’+1’
b. 26’+10’-2’
c. 27’+10’-3’
d. 27’+8’
Q. What is the approximate size of angle gauges?
a. 76mm long and 16 wide
b. 85mm long and 26 wide
c. 16mm long and 75 wide
d. 70mm long and 18 wide
Q. Which gauges are present in the first series (degree) of angle gauges?
a. 5°, 10°, 15°, 25° and 40°
b. 1°, 3°, 9°, 27° and 41°
c. 1°, 5°, 9°, 25° and 45°
d. 5°, 10°, 15°, 30° and 45°
Q. Statement 2: Interferometry can be used to calibrate angle gauges.
a. t, f
b. f, f
c. f, t
d. t, t
Q. What are the two grades of angle gauges?
a. master and tool room
b. precise and normal
c. standard and industrial
d. high and low
Q. How angle greater than 90° is measured?
a. by repeating gauges
b. using square plate
c. using sine bar
d. using auto collimator
Q. Which of the following is not true about metrology lasers used in laser inspection?
a. these are high-power instruments
b. used for rapid non-contact gauging of delicate parts
c. have low optical cross-talk
d. wide dynamic range
Q. What is the wavelength of light produced by He-Ne laser in laser inspection?
a. 6988 Å
b. 5328 Å
c. 5928 Å
d. 6328 Å
Q. Which technique is not suitable to measure large diameter parts or large gaps?
a. diffraction pattern technique
b. scanning laser technique
c. photodiode array imaging
d. laser triangulation sensor
Q. Which of the following is true about resolution in two frequency laser interferometer?
a. straightness resolution – 90 nm
b. angular resolution – 3 arc seconds
c. flatness resolution – 2 nm
d. linear resolution – 1 nm