Top 550+ Solved Unconventional Machine Process (UMP) MCQ Questions Answer
Q. Which of the following materials are machined using Wire Electro discharge machining?
a. polycrystalline diamond
b. cubic boronitride
c. matrix composites
d. all of the mentioned
Q. How much amount of burr is produce when we use Wire Electro discharge machining for machining of work pieces?
a. 10%
b. 20%
c. no burr
d. small amount
Q. Which of the following industries use wire EDM for different applications?
a. chemical industry
b. aerospace industry
c. automobile industry
d. all of the mentioned
Q. While machining insulating ceramic materials using EDM, where is the sheet metal placed?
a. over material
b. below material
c. under material
d. none of the mentioned
Q. Sparks occur between which of the following components?
a. work piece and sheet metal
b. tool electrode and sheet metal
c. work piece and electrode
d. none of the mentioned
Q. Texturing is applied to the steel sheets at which stages of cold rolling?
a. initial stages
b. middle stages
c. final stages
d. all of the mentioned
Q. What is the full form of EDT in EDM processes?
a. electro discharge tinplating
b. electro discharge texturing
c. electro discharge tapping
d. electro discharge turing
Q. Which of the following are the process variables for texturing process in EDM?
a. pulse current
b. electrode polarity
c. dielectric type
d. all of the mentioned
Q. What are the values of current amplitudes used in EDT?
a. 0.2 to 1 a
b. 2 to 10 a
c. 20 to 100 a
d. 40 to 200 a
Q. What are duration values of current amplitude in EDT?
a. 0.1 to 1 µs
b. 1 to 10 µs c) 10 to 100 µs
Q. What are the spindle rotation speeds used in EDT?
a. 1 to 4 rpm
b. 10 to 40 rpm
c. 20 to 60 rpm
d. 30 to 90 rpm
Q. What happens to the machine capital cost in EDT when there is an increase in tool quantity?
a. decreases
b. increases
c. remains same
d. none of the mentioned
Q. What is the value of depth to diameter ratio in Micro-Electro discharge machining process?
a. 10:1
b. 5:2
c. 4:3
d. 2:1
Q. What are the values of depths that can be machined using Micro-EDM?
a. 1 mm
b. 10 mm
c. 100 mm
d. 1000 mm
Q. What are the machining rates used in Micro-EDM process?
a. 0.1 to 2 mm/min
b. 1 to 20 mm/min
c. 10 to 200 mm/min
d. 100 to 500 mm/min