Unconventional Machine Process Set 5

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This set of Unconventional Machine Process (UMP) Multiple Choice Questions & Answers (MCQs) focuses on Unconventional Machine Process Set 5

Q1 | Abrasive flow value in Abrasive water jet machining will range between which of the following values?
  • 0.01 – 0.1 kg/min
  • 0.1 – 1.0 kg/min
  • 1.0 – 10 kg/min
  • 10 – 100 kg/min
Q2 | Of the following values, between which values traverse speed will range?
  • 0.1 to 5 m/min
  • 5 to 100 m/min
  • 100 to 500 m/min
  • 500 to 1000 m/min
Q3 | Depth of cut values in Abrasive water jet machining ranges between which values?
  • 0.01 to 2 mm
  • 2 to 250 mm
  • 300 to 500 mm
  • 650 to 900 mm
Q4 | Who discovered USM?
  • balamuth
  • paul o flawer
  • turing
  • steve john
Q5 | What is the full form of USM in advanced machining process?
  • ultrasound manufacturing
  • ultrasonic machining
  • uv spectrum manufacturing
  • ultra sonar machining
Q6 | USM removes materials using the                          tool.
  • perpendicularly rotating
  • perpendicularly oscillating
  • axially oscillating
  • inclined oscillating
Q7 | Which is softer material in USM?
  • tool
  • work piece
  • tool & work piece
  • none of the mentioned
Q8 | Frequency of tool’s oscillation in USM ranges between                    
  • 5-10 khz
  • 10-15 khz
  • 18-20 khz
  • 25-50 khz
Q9 | The machining system of USM contains which of the following components?
  • magnetostrictor
  • concentrator
  • tools and slurry
  • all of the mentioned
Q10 | In Ultrasonic Machining, Magnetostrictor is energized at ultrasonic frequency.
  • true
  • false
Q11 | Of the following scientists, who discovered magnetostrictor effect?
  • balamuth
  • steve o flawer
  • joule
  • turing
Q12 | In Ultrasonic Machining, magnetostrictor converts magnetic energy into which type of energy?
  • mechanical energy
  • electrical energy
  • thermal energy
  • none of the mentioned
Q13 | In USM, tool tips must have low resistance and fatigue strength.
  • true
  • false
Q14 | At what rate slurry is pumped through nozzle in USM?
  • 10 l/min
  • 25 l/min
  • 50 l/min
  • 75 l/min
Q15 | By which of the following means, material is removed in USM?
  • mechanical abrasion
  • microchipping
  • cavitation
  • all of the mentioned
Q16 | In the following mechanisms, which one is dominant in material removal?
  • hammering
  • cavitation
  • microchipping
  • none of the mentioned
Q17 | When machining porous material, which type of mechanism is introduces?
  • abrasion
  • erosion
  • corrosion
  • vaporization
Q18 | The rate of material removal depends on which of the following features?
  • frequency
  • static pressure
  • machining area
  • all of the mentioned
Q19 | The machinability of USM depends on brittleness criterion.
  • true
  • false
Q20 | Which of the following are the features of tool affecting MRR in USM?
  • hardness
  • wearability
  • accuracy
  • mounting
Q21 | What happens to MRR with increase in tool amplitude?
  • increases
  • decreases
  • remains same
  • none of the mentioned
Q22 | The vibration amplitude determines, which parameter of the abrasive particles?
  • force
  • torque
  • velocity
  • pressure
Q23 | If splashing occurs, it will result in an increase of material removal rate in USM.
  • true
  • false
Q24 | As the vibration frequency increases, what happens to material removal rate?
  • decreases
  • increases
  • increase and then decrease
  • decrease and then increase
Q25 | Which of the following can be used as an abrasive carrying medium?
  • water
  • benzene
  • glycerol
  • all of the mentioned