Unconventional Machine Process Set 10 MCQs

Q1 | Which of the following are the applications of Electro discharge machining?

holes

slots

texturing

all of the mentioned

Q2 | Which type of electrode is used for drilling in Electro discharge machining?

flat electrode

cuboidal electrode

tubular electrode

spherical electrode

Q3 | The dielectric fluid is flushed in thorough which part of the electrode in drilling in EDM?

interior hole

side gaps

all of the mentioned

none of the mentioned

Q4 | Which type of holes can be produced through drilling using Electro discharge machining?

irregular

curved

tapered

all of the mentioned

Q5 | What are the values of general feed rates used for drilling in EDM?

0.1 mm/min

0.3 m/min

0.5 mm/min

0.7 mm/min

Q6 | 10 to 0.50 mm.

0.01 to 0.05 mm

0.1 to 0.5 mm

1 to 5 mm

10 to 15 mm

Q7 | Electro discharge sawing is an application of EDM which employs as tool material.

steel band

disc

steel band & disc

none of the mentioned

Q8 | When compared to the conventional abrasive sawing, how many times faster is the MRR?

twice

thrice

four

five

Q9 | How much amount of burr is produce while machined using Electro discharge sawing?

10%

20%

50%

no burr

Q10 | 3 to 10 µm when machined using Electro discharge sawing.

0.001 to 0.022 mm

0.025 to 0.130 mm

0.236 to 0.352 mm

0.432 to 0.568 mm

Q11 | Which of the following electrodes are used for machining spherical surfaces in Electro discharge machining?

tubular electrodes

flat electrodes

cuboidal electrodes

all of the mentioned

Q12 | What are the values of dimensional accuracy obtained while machining spherical surfaces?

± 1 µm

± 3 µm

± 5 µm

± 7 µm

Q13 | What are the surface roughness values obtained while machining spherical surfaces using Electro discharge machining?

<0.1 µm

<0.3 µm

<0.5 µm

<0.7 µm

Q14 | Which motion of tool is used for machining spherical surfaces in Electro discharge machining?

oscillatory

vibratory

rotary

all of the mentioned

Q15 | Which type of electrodes are used for milling application in Electro discharge machining process?

tubular type electrodes

cylindrical type electrodes

flat type electrodes

spherical type electrodes

Q16 | Which type of cavities can be machined using milling process by Electro discharge machining?

complex cavities

simple cavities

simple & complex cavities

none of the mentioned

Q17 | The simple electrodes are rotated at which speed for milling of work pieces in Electro discharge machining?

very low

low

medium

high

Q18 | What happens to the dielectric flushing while milling tool is rotated at a high speed in EDM?

improved

worsen

reduced

all of the mentioned

Q19 | Which of the following are the steps included in the die sinking process of EDM?

cad of electrode

electrode manufacturing

programming for die sinking

all of the mentioned

Q20 | Which path of the components in wire EDM determines the path to be machined?

horizontal worktable movement

vertical worktable movement

horizontal & vertical worktable movement

none of the mentioned

Q21 | Which of the following materials are machined using Wire Electro discharge machining?

polycrystalline diamond

cubic boronitride

matrix composites

all of the mentioned

Q22 | How much amount of burr is produce when we use Wire Electro discharge machining for machining of work pieces?

10%

20%

no burr

small amount

Q23 | Which of the following industries use wire EDM for different applications?

chemical industry

aerospace industry

automobile industry

all of the mentioned

Q24 | While machining insulating ceramic materials using EDM, where is the sheet metal placed?

over material

below material

under material

none of the mentioned

Q25 | Sparks occur between which of the following components?

work piece and sheet metal

tool electrode and sheet metal

work piece and electrode

none of the mentioned