Top 550+ Solved Unconventional Machine Process (UMP) MCQ Questions Answer
Q. Which of the following are necessary for best surface quality in Chemical milling?
a. fine grain size and homogenous metallurgy
b. coarse grain size and heterogeneous metallurgy
c. fine grain size and heterogeneous metallurgy
d. coarse grain size and homogenous metallurgy
Q. Which of the following are the factors, on which, surface finish depends?
a. grain size
b. heat treatment
c. induced stresses
d. all of the mentioned
Q. Which of the following defects cannot be altered or eliminated using CHM?
a. waviness
b. surface imperfections
c. scratches
d. dents
Q. Which type of etching rate, mentioned below, produces low surface roughness?
a. very low
b. low
c. medium
d. high
Q. The depth of cut tolerances increases when machining depths at high machining rates.
a. very smaller
b. smaller
c. medium
d. larger
Q. What is the value of etching rate, which can be achieved using Chemical milling?
a. 0.001 mm/min
b. 0.025 mm/min
c. 0.050 mm/min
d. 0.075 mm/min
Q. What are the tolerance values achieved in Chemical milling, which depend on work piece material and depth of cut?
a. ± 10%
b. ± 20%
c. ± 30%
d. ± 40%
Q. For what value of machining depths, surface roughness sharply increases with depth of cut?
a. <100 µm
b. <200 µm
c. <300 µm
d. <400 µm
Q. What is the value of surface roughness, which is generally obtained using Chemical milling?
a. 0.01 – 0.08 µm
b. 0.1 – 0.8 µm
c. 1 – 8 µm
d. 10 – 80 µm
Q. Which of the following can be easily removed using Chemical milling process?
a. tio2 layer
b. decarburized layer
c. recast structure
d. all of the mentioned
Q. What are the advantages when we use Chemical milling process?
a. weight reduction
b. no burrs
c. no stresses
d. all of the mentioned
Q. Weight reduction is possible, on which type of contours?
a. very simple
b. simple
c. complex
d. none of the mentioned
Q. Simultaneous material removal using Chemical milling, results in which of the following?
a. improves productivity
b. reduces wrapping
c. minimizing part distortion
d. all of the mentioned