Top 550+ Solved Unconventional Machine Process (UMP) MCQ Questions Answer
Q. In advanced machining processes, what is the full form of AWJM?
a. automated water jet machining
b. automated water jet manufacturing
c. abrasive water jet machining
d. abrasive water jet manufacturing
Q. What are all the types of materials, which can be machined using AWJM?
a. glass
b. ceramics
c. concrete
d. all of the mentioned
Q. When compared to the conventional machining, how much times faster, is the Abrasive water jet machining?
a. 5 times
b. 10 times
c. 15 times
d. 20 times
Q. What is the percentage of the abrasives and water in the mixture?
a. 20% water and 80% abrasives
b. 80% water and 20% abrasives
c. 30% water and 70% abrasives
d. 70% water and 30% abrasives
Q. What are the materials used for abrasives in Abrasive water jet machining?
a. sic
b. corundum
c. glass beads
d. all of the mentioned
Q. In the machining system of AWJM, which one accelerates the abrasives to remove material?
a. water only
b. water jet stream
c. feeder
d. none of the mentioned
Q. What is the grain size of abrasive particles, which are often used for Abrasive water jet machining?
a. 0.01 – 0.50 µm
b. 10 – 150 µm
c. 200 – 500 µm
d. 500 – 1000 µm
Q. How is the material removed in Abrasive water jet machining?
a. vaporization
b. electron transfer
c. corrosion
d. erosion
Q. Which of the following is not the feed mechanism of the abrasives in AWJM?
a. side feed
b. cross feed
c. central feed
d. all of the mentioned
Q. In Abrasive water jet machining, how are the abrasives fed into the water jet stream?
a. suspension
b. injection
c. all of the mentioned
d. none of the mentioned
Q. What is the use of delivery system in the machining system of AWJM?
a. to deliver colloidal solution
b. to pump water
c. to fed abrasives
d. none of the mentioned
Q. Of the following components, which one does not come under the machining system of AWJM?
a. water delivery system
b. transducer
c. cutting nozzles
d. mixing chambers
Q. In Abrasive water jet machining, intensifier is used to deliver which type of pressure?
a. very low pressure
b. low pressure
c. medium pressure
d. high pressure
Q. In mixing chamber of AWJM, which of the following are mixed?
a. abrasives and colloidal solution
b. abrasives and water jet
c. colloidal and water jet
d. none of the mentioned