C nominal frequency d anti resonance frequency ii 26

  • No School
  • AA 1
  • 6

This preview shows page 5 - 6 out of 6 pages.

c) nominal frequency d) anti-resonance frequency II- 26 The repeated reflections of ultrasonic pulses from between surfaces or discontinuities within a body are [ Australian Standard ] page10 a) ghost echoes b) sing-around c) multiple echoes d) wrap-around II- 27 Instrument settings which relate a reference echo of reproducible amplitude with which other instrument settings relating to a discontinuity echo are compared is the [ Australian Standard ] page11 a) scanning level b) threshold level c) reference sensitivity
Image of page 5
d) overall system gain II- 28 Addition of suppression or reject to a display effectively [ Australian Standard ] page11 a) filters out unwanted noise b) reduces dynamic range c) increases sensitivity d) none of the above II- 29 The relationship between amplitudes of an indication in A-scan presentation and the magnitude of the corresponding received signals is used to determine [ Australian Standard ] page13 a) vertical linearity b) manual scanning speed c) longitudinal/shear mode energy ratios d) none of the above II- 30 When information is presented as a B-scan on an oscilloscope, intensity (or amplitude) of a signal is indicated by [ Ensminger ] page256 a) strobe effects for signals over a threshold amplitude b) digital readout on the corner of the screen c) brightness of the spot on the scope d) none of the above 1.C 2.A 3.A 4.B 5.D 6.D 7.B 8.C 9.C 10.C 11.D 12.C 13.D 14.D 15.D 16.A 17.C 18.A 19.A 20.B 21.C 22.A 23.B 24.D 25.A 26.C 27.C 28.B 29.A 30.C
Image of page 6

You've reached the end of your free preview.

Want to read all 6 pages?

  • Fall '19
  • 10%, 50%, 32%, 100 mm

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors