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This set of Unconventional Machine Process (UMP) Multiple Choice Questions & Answers (MCQs) focuses on Unconventional Machine Process Set 6
Q1 | If there is an increase in viscosity of slurry, what happens to MRR?
- increases
- decreases
- remains same
- none of the mentioned
Q2 | How much percent of the abrasives are recommended in general for abrasive medium?
- 10 – 15 %
- 15 – 20 %
- 25 – 30 %
- 30 – 35 %
Q3 | Machining rate can be affected by the ratio of hardness of tool to that of hardness of work piece.
- true
- false
Q4 | As the tool area increases, what happens to MRR?
- decreases
- increases
- remains same
- none of the mentioned
Q5 | When the static pressure of the feed is increases, what happens to MRR?
- increases
- decreases
- increase up to a limiting condition
- decrease up to a limiting condition
Q6 | Which of the following distribution factors, does not affect the machining parts?
- side wear of tool
- abrasive wear
- accurate feed
- form error of tool
Q7 | Which one of the following factors affects the accuracy of parts?
- steady abrasive flow
- accurate feed
- unsteady abrasive flow
- ultrasonic frequency
Q8 | While machining W4C and glass, tool over cut size when compared to mean grain size is?
- two times greater
- two times smaller
- three times greater
- three times smaller
Q9 | While machining B4C, tool over cut size when compared to mean grain size is?
- two times greater
- two times smaller
- three times greater
- three times smaller
Q10 | Conicity resulting after machining by Ultrasonic Machining can be reduced by?
- direct injection of slurry
- tools having negative taper
- high static pressure
- all of the mentioned
Q11 | Which of the following factors affect the surface finish of machined parts in Ultrasonic Machining?
- amplitude
- material
- tool surface
- all of the mentioned
Q12 | When the viscosity of liquid carrier is increased, the surface quality of the parts?
- increased
- decreased
- remained same
- none of the mentioned
Q13 | Ultrasonic Machining can be used for which of the following processes and applications?
- drilling
- sinking and contouring
- polishing
- all of the mentioned
Q14 | Drilling in Ultrasonic Machining is done, by which motion of the tool?
- only rotation
- only oscillation
- oscillation and rotation
- none of the mentioned
Q15 | In which of the following materials, Rotary Ultrasonic Machining can be used to drill holes through them?
- glass
- alumina
- ferrite
- all of the mentioned
Q16 | On which of the following features of cavity, will the penetration depth depend on?
- depth
- diameter
- size
- all of the mentioned.
Q17 | What is the value of depth in Ultrasonic sinking, after which, material removal becomes difficult?
- 1 to 2 mm
- 2 to 5 mm
- 5 to 7 mm
- 7 to 10 mm
Q18 | In production of EDM electrodes, typical ultrasonic speeds, in graphite ranges between?
- 0.01 – 0.10 cm/min
- 0.10 – 0.25 cm/min
- 0.25 – 0.40 cm/min
- 0.40 – 1.40 cm/min
Q19 | How much is the value of surface finished, achieved using Ultrasonic Polishing?
- 0.1 μm
- 0.3 μm
- 0.5 μm
- 0.7 μm
Q20 | In Micro-Ultrasonic Machining, which of the following component vibrates?
- tool
- work piece
- feed pipe
- all of the mentioned
Q21 | In Micro-USM, using WC tool, what is the value of diameter can be achieved?
- 1 μm
- 3 μm
- 5 μm
- 7 μm
Q22 | In advanced machining processes, what is the full form of EDM?
- electro discharge machining
- electro discharge manufacturing
- electrical dimensioning machining
- electrode dimensions manufacturing
Q23 | Machining speeds have gone up to how many times after the invention of EDM?
- ten
- twenty
- thirty
- fifty
Q24 | After invention of EDM, surface finish have improved by how much factor?
- 10
- 15
- 20
- 25
Q25 | Cavities with, which of the following factors can be produced using Electro discharge machining?
- thin walls
- fine features
- thin walls & fine features
- none of the mentioned