Top 550+ Solved Unconventional Machine Process (UMP) MCQ Questions Answer
Q. Which of the following is an advantage of MAF over Electrolytic finishing?
a. disposing of electrolyte
b. cost effective
c. more flexible
d. more accuracy
Q. What are the other applications where Magnetic abrasive finishing can be used?
a. removal of oxide layers
b. removal of protective coatings
c. chamfering
d. all of the mentioned
Q. What is the frequency of mixing chamber, consisting of gas and abrasives?
a. 10 hz
b. 30 hz
c. 50 hz
d. 70 hz
Q. What are the processes where Abrasive jet machining can be used?
a. cleaning
b. cutting
c. deburring
d. all of the mentioned
Q. In machining system of AJM, which of the following controls the relative motion between work piece and nozzle?
a. cam drives
b. pantographs
c. trace mechanisms
d. all of the mentioned
Q. Masks, which are used to confine the jet stream location on work piece are made of, which type of materials?
a. copper
b. glass
c. rubber
d. all of the mentioned
Q. In AJM, what is the mechanism of removal of material from the work piece?
a. corrosion
b. abrasion
c. electron transfer
d. vaporization
Q. In AJM, abrasive jet from the nozzle follows, which type of path for a short distance?
a. parallel
b. inclined
c. perpendicular
d. none of the mentioned
Q. Which of the following components, influence the material removal rate in Abrasive jet machining?
a. nozzle
b. carrier gas
c. abrasive grains
d. all of the mentioned
Q. In the following properties of nozzle, which of them does not influence the MRR?
a. size
b. wear
c. outside temperature
d. distance from work piece
Q. In the following properties of abrasive grains, which of them changes rate of material removal?
a. size
b. strength
c. shape
d. all of the mentioned
Q. As the abrasive flow rate increases, what happens to the volumetric removal rate?
a. increases
b. decreases
c. increase and then decrease
d. decrease and then increase
Q. What is the value of abrasive grain flow rate in Abrasive jet machining?
a. 0.1 – 2 g/min
b. 3 – 20 g/min
c. 30 – 56 g/min
d. 68 – 85 g/min
Q. What is the value of carrier gas flow rate in Abrasive jet machining?
a. 6 l/min
b. 17 l/min
c. 28 l/min
d. 39 l/min