Q.1
Which of the following are the applications of EBM?
  • a) Hole drilling
  • b) Slotting
  • c) Perforation of thin sheets
  • d) All of the mentioned
Q.2
What is the value of largest diameter of the hole drilled on EBM?
  • a) 0.5 mm
  • b) 1.0 mm
  • c) 1.5 mm
  • d) 2.0 mm
Q.3
What is the value of maximum depth of the hole drilled on EBM?
  • a) 10 mm
  • b) 20 mm
  • c) 30 mm
  • d) 40 mm
Q.4
What is the range of depth-to-diameter ratio in Electron beam machining?
  • a) 2:5 to 2:11
  • b) 1:1 to 1:15
  • c) 3:4 to 3:20
  • d) 4:5 to 4:19
Q.5
How many holes can be produced in perforation of thin sheets using EBM?
  • a) 101 to 102
  • b) 102 to 103
  • c) 103 to 104
  • d) 104 to 105
Q.6
What is the value of energy required for bond breaking?
  • a) 10 to 20kV
  • b) 20 to 30kV
  • c) 30 to 40kV
  • d) 40 to 50kV
Q.7
What is the value of pulse time used in EBM?
  • a) 0.004 to 0.064 µs
  • b) 0.04 to 0.64 µs
  • c) 0.4 to 640 µs
  • d) 4 to 64000 µs
Q.8
What is the value of frequency used in EBM?
  • a) 0.001 – 0.016 Hz
  • b) 0.01 – 16 Hz
  • c) 0.1 – 16000 Hz
  • d) 10 – 1600 kHz
Q.9
What is the tolerance value obtained in EBM?
  • a) ± 10 %
  • b) ± 20 %
  • c) ± 30 %
  • d) ± 40 %
Q.10
Which of the following are the advantages of EBM process?
  • a) Drilling rates
  • b) No distortion
  • c) High accuracy
  • d) All of the mentioned
Q.11
There is no limitation imposed on which of the following factors in EBM?
  • a) Material ductility
  • b) Surface hardness
  • c) Surface reflectivity
  • d) All of the mentioned
Q.12
How much is the capital equipment cost of equipment used in EBM?
  • a) Very low cost
  • b) Low cost
  • c) Moderate cost
  • d) High cost
Q.13
How are the production times for a material in electron beam machining?
  • a) Very small
  • b) Small
  • c) Moderate
  • d) Long
Q.14
Which type of thin cast layer is produced when we use EBM?
  • a) Thin layer
  • b) Thick layer
  • c) No layer
  • d) All of the mentioned
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