_________________ drilling has rapidly become an inexpensive alternative to outdated mechanical hole drilling methods.(a) Laser(b) Ultrasonic(c) Radiation(d) AtomicThe question was posed to me in an interview for job.My query is from Drilling and Road Making Equipments in chapter Construction Equipments of Construction & Building Materials

_________________ drilling has rapidly become an inexpensive alternati

1.	_________________ drilling has rapidly become an inexpensive alternative to outdated mechanical hole drilling methods.(a) Laser(b) Ultrasonic(c) Radiation(d) AtomicThe question was posed to me in an interview for job.My query is from Drilling and Road Making Equipments in chapter Construction Equipments of Construction & Building Materials
Answer» Correct answer is (a) Laser Best explanation: Laser DRILLING provides consistency for MANUFACTURING specifications RELYING on tight TOLERANCE for high depth to diameter ratios. Laser drilling hole sizes vary depending on laser power, Motion Control and galvo system. Rapid prototyping is particularly adaptable to a wide range of hole sizes.

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