Top 550+ Solved Unconventional Machine Process (UMP) MCQ Questions Answer
Q. Which of the following is not an advantage of Water jet machining?
a. burr produced is minimal
b. no heat is produced
c. relatively low hourly rates
d. environmentally safe
Q. Which of the following secondary processes are eliminated in Water jet machining?
a. grinding of surface
b. surface treatment
c. polishing of surface
d. all of the mentioned
Q. How many parts are cut using Water jet machining, on a single blank?
a. one part
b. two parts
c. three parts
d. multiple parts
Q. Which of the following is the disadvantage of water jet machining?
a. narrow kerf width
b. small diameter of nozzle
c. not suitable for mass production
d. burr is minimal
Q. . In advanced machining processes, what is the full form of AJM?
a. automatic jet manufacturing
b. abrasive jet machining
c. automated jet machining
d. abrasive jet manufacturing
Q. In AJM, which of the following materials are used as abrasive grains?
a. al2o3
b. sic
c. glass beads
d. all of the mentioned
Q. In Abrasive jet machining, work piece material of removed by which of the following means?
a. vaporization
b. electro plating
c. mechanical abrasion
d. corrosion
Q. Which type of materials can be machined using Abrasive jet machining?
a. glass
b. ceramics
c. hard materials
d. all of the mentioned
Q. In machining system of AJM, which is the medium of carrying the abrasive grains for machining?
a. liquids
b. gases
c. any fluids
d. none of the mentioned
Q. In machining system of AJM, what is/are the gas/es used for carrying the abrasives?
a. co2
b. air
c. nitrogen
d. all of the mentioned
Q. What is the pressure of gas that is to be supplied, for carrying the abrasives?
a. 0.1 to 1.0 kg/cm2
b. 2.0 to 8.0 kg /cm2 c) 10.0 to 18.0 kg/cm2 d) 25.0 to 35.5 kg/cm2
Q. Which of the following gas, should never be used as the carrier of abrasives?
a. nitrogen
b. co2
c. oxygen
d. air
Q. Which of the following, are the other advantages of CHM?
a. design changes
b. less skilled operator
c. minor tooling costs
d. all of the mentioned
Q. Good surface quality and absence of burr eliminates which of the following?
a. cutting operations
b. finishing operations
c. drilling operations
d. none of the mentioned