Top 550+ Solved Unconventional Machine Process (UMP) MCQ Questions Answer
Q. In WEDM, the wire is held tight between
a. upper and lower nozzles
b. upper and lower diamond guides
c. upper and lower groves in the handle
d. upper and lower pulleys
Q. In the wire-cut EDM process, de-ionizing units are used for controlling the
a. feed rate
b. resistivity
c. burr formation
d. temperature of the wire
Q. In the wire-cut EDM process, water is also used for
a. cooling
b. increasing the feed rate
c. flushing away the burr
d. controlling the cutting speed
Q. The WEDM process requires
a. lower initial investment
b. lesser cutting forces
c. a skilled operator
d. a coolant pump
Q. Electrically conductive materials are cut by WEDM process by mechanism.
a. thermal
b. electro-thermal
c. electro-dynamic
d. fused metal
Q. In wire-cut EDM process, material removal takes place by a series of discrete discharges between
a. di-electric fluid and the wire electrode
b. the wire-electrode and the workpiece
c. the workpiece and the cnc-table
d. wire electrodes
Q. The di-electric fluid gets ionizes in between gap.
a. tool-electrode
b. cathode-anode
c. workpiece-electrode
d. tool-workpiece
Q. The burr or cut particles are flushed away by the
a. electrode
b. motion of the workpiece
c. di-electric fluid
d. coolant
Q. Wire-cut EDM (WEDM) process is widely used for
a. alloy steels
b. tool steels
c. stainless steels
d. carbon steels
Q. For which of the following materials wire-cut EDM is not used?
a. aluminium
b. zirconium
c. steels
d. titanium