Top 550+ Solved Unconventional Machine Process (UMP) MCQ Questions Answer
Q. Which of the following are main components of EDM?
a. dielectric system
b. servomechanism
c. power supply
d. all of the mentioned
Q. What is the function of feed-control system in Electro discharge machining?
a. constant gap
b. supply power
c. dielectric fluid supply
d. work piece holding
Q. What is the use of power supply system in Electro discharge machining?
a. constant gap
b. supply power
c. dielectric fluid supply
d. work piece holding
Q. What is the function of dielectric circulation unit in Electro discharge machining?
a. constant gap
b. supply power
c. dielectric fluid supply
d. work piece holding
Q. Which of the following materials are used as electrodes in EDM?
a. graphite
b. copper
c. brass
d. all of the mentioned
Q. Metals with melting point and electrical conductivity are chosen as tools in EDM.
a. low, good
b. low, bad
c. high, good
d. high, bad
Q. Copper has Electro discharge machining wear and conductivity.
a. good, better
b. good, worse
c. bad, better
d. bad, worse
Q. Which of the following tungsten carbides are used as electrodes in EDM?
a. silver tungsten
b. copper tungsten
c. all of the mentioned
d. none of the mentioned
Q. Brass metal ensures which type of sparking conditions in Electro discharge machining?
a. stable
b. unstable
c. unsteady
d. insecure
Q. In addition to the feed of tool, Electro discharge machining tool can have which type of motion?
a. oscillatory
b. rotary
c. vibrational
d. all of the mentioned
Q. Which of the following parameters determines the size of cavities?
a. size of electrode
b. radius of orbit
c. all of the mentioned
d. none of the mentioned
Q. Electrode orbiting the flushing of dielectric fluid in Electro discharge machining.
a. improves
b. decreases
c. reduces
d. degrades
Q. Quality of hole produced by orbiting motion is to that obtained by using stationary electrode.
a. inferior
b. superior
c. lower
d. all of the mentioned
Q. In EDM, electrode polarity depends up on which of the following components?
a. work piece
b. electrode material
c. all of the mentioned
d. none of the mentioned
Q. Which one among the following, is the most important factor in determining the tool wear?
a. melting point
b. boiling point
c. power supplied
d. feed rate