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This set of Unconventional Machine Process (UMP) Multiple Choice Questions & Answers (MCQs) focuses on Unconventional Machine Process Set 4
Q1 | Which of the following materials in Abrasive jet machining can be a health hazard?
- abrasive grains
- air carrier
- silica dust
- none of the mentioned
Q2 | In AJM, air filters are used to remove which of the following?
- moisture
- oil
- other dust particles
- all of the mentioned
Q3 | In advanced machining processes, what is the full form of AWJM?
- automated water jet machining
- automated water jet manufacturing
- abrasive water jet machining
- abrasive water jet manufacturing
Q4 | What are all the types of materials, which can be machined using AWJM?
- glass
- ceramics
- concrete
- all of the mentioned
Q5 | When compared to the conventional machining, how much times faster, is the Abrasive water jet machining?
- 5 times
- 10 times
- 15 times
- 20 times
Q6 | What is the percentage of the abrasives and water in the mixture?
- 20% water and 80% abrasives
- 80% water and 20% abrasives
- 30% water and 70% abrasives
- 70% water and 30% abrasives
Q7 | What are the materials used for abrasives in Abrasive water jet machining?
- sic
- corundum
- glass beads
- all of the mentioned
Q8 | In the machining system of AWJM, which one accelerates the abrasives to remove material?
- water only
- water jet stream
- feeder
- none of the mentioned
Q9 | The introduction of compressed air to the water jet enhances the deburring action.
- true
- false
Q10 | What is the grain size of abrasive particles, which are often used for Abrasive water jet machining?
- 0.01 – 0.50 µm
- 10 – 150 µm
- 200 – 500 µm
- 500 – 1000 µm
Q11 | How is the material removed in Abrasive water jet machining?
- vaporization
- electron transfer
- corrosion
- erosion
Q12 | Which of the following is not the feed mechanism of the abrasives in AWJM?
- side feed
- cross feed
- central feed
- all of the mentioned
Q13 | In Abrasive water jet machining, how are the abrasives fed into the water jet stream?
- suspension
- injection
- all of the mentioned
- none of the mentioned
Q14 | What is the use of delivery system in the machining system of AWJM?
- to deliver colloidal solution
- to pump water
- to fed abrasives
- none of the mentioned
Q15 | Of the following components, which one does not come under the machining system of AWJM?
- water delivery system
- transducer
- cutting nozzles
- mixing chambers
Q16 | In Abrasive water jet machining, intensifier is used to deliver which type of pressure?
- very low pressure
- low pressure
- medium pressure
- high pressure
Q17 | In mixing chamber of AWJM, which of the following are mixed?
- abrasives and colloidal solution
- abrasives and water jet
- colloidal and water jet
- none of the mentioned
Q18 | Of the following, which one is a type of suspension in AWJM?
- direct pumping
- indirect pumping
- bypass pumping
- all of the mentioned
Q19 | In machining system of AWJM, mixing chamber is immediately followed by which of the following component?
- focusing tube
- cutting nozzle
- intensifier
- water delivery
Q20 | Which of the following energies are absorbed using the catchers in Abrasive water jet machining?
- pressure energy
- kinetic energy of abrasives
- residual energy
- all of the mentioned
Q21 | Which of the following are different types of catchers used in AWJM?
- water basin type
- submerged steel balls type
- tib2 type
- all of the mentioned
Q22 | Which of the following is not a process parameter of Abrasive water jet machining?
- frequency of vibration
- orifice diameter
- pressure
- stand-off distance
Q23 | Which of the following come under the process parameters of the Abrasive water jet machining?
- abrasive size
- machine impact angle
- traverse speed
- all of the mentioned
Q24 | 10 – 0.30 mm.
- 1000 – 1500 bar
- 1500 – 2500 bar
- 2500 – 4000 bar
- 4000 – 10000 bar
Q25 | Surface roughness depends on which of the following parameters in Abrasive water jet machining?
- work piece material
- grit size
- abrasive type
- all of the mentioned