Top 550+ Solved Unconventional Machine Process (UMP) MCQ Questions Answer
Q. What are the values of hole diameters obtained using Wire electro discharge grinding?
a. 1 µm
b. 3 µm
c. 5 µm
d. 7 µm
Q. What are the feed rates used in WEDG process?
a. 1 to 5 mm/min
b. 5 to 10 mm/min
c. 10 to 15 mm/min
d. 15 to 20 mm/min
Q. Which of the following is a major difficulty in the Electro discharge machining process?
a. proper sparks
b. abnormal discharges
c. optimum feed rates
d. no burr
Q. What has been done to the off time when there is a no-load voltage of electric discharge?
a. increased
b. decreased
c. reduced
d. remains same
Q. In a simple application which of the following parameters are inputs?
a. pulse duration and current
b. normal and abnormal pulses
c. all of the mentioned
d. none of the mentioned
Q. In a simple application which of the following parameters are outputs?
a. pulse duration and current
b. normal and abnormal pulses
c. all of the mentioned
d. none of the mentioned
Q. Which of the following are correlated with the machining conditions at output stage?
a. machining depth
b. surface roughness
c. accuracy
d. all of the mentioned
Q. How are EDM’s levels of integration when compared to conventional machining?
a. slower rate
b. faster rate
c. same rate
d. none of the mentioned
Q. Manufacturing of tool electrode undergoes which of the following processes?
a. milling
b. turning
c. finishing
d. all of the mentioned
Q. High temperatures produced in the working gap results in which of the following potentials?
a. hazardous smoke
b. toxic vapours
c. aerosols
d. all of the mentioned
Q. Hydro carbons present in the dielectric fluid have impact on which of the body parts?
a. eyes
b. teeth
c. skin
d. nails
Q. What happens to the Electro discharge machining process under unfavourable working conditions?
a. will remain stable
b. explosion may occur
c. machining rate increases
d. nothing happens
Q. Reduction in the electrical energy consumption will have impact on which aspects mentioned below?
a. environmental
b. economic
c. environmental & economic
d. none of the mentioned
Q. A thin metallic wire used in wire-cut EDM is kept submerged in a tank of
a. dielectric fluid
b. pure water
c. molten metal
d. kerosene