Attenuation is made up of:

Related MCQs

• Which of the following materials of the same alloy is most likely to produce the greatest amount of sound attenuation over a given distance?
• Which of the following methods might be used to reduce attenuation losses in an ultrasonic test?
• When comparing discontinuity echoes to equivalent flat bottom hole echoes in materials with similar impedance, surface finish and attenuation:
• How many decibels of attenuation correspond to an ultrasonic signal loss of from 100% to 25% on full screen height?
• In general, which of the following materials would have the least ultrasonic attenuation?
• Which of the following frequencies would probably result in the greatest ultrasonic attenuation losses?
• Which type of casting is made in a metal mould?
• Most industrial X ray machines contain targets made of:
• After the step wedge radiographs have been made, the of the image of each step is recorded on chart:
• A radiograph is made using film X with an exposure of 10 mA-min. Film density obtained in the area of interest is 1.0. If it is desired to achieve a density of 2.0 in the area of interest, what exposure is required? (Log relative exposure = 1.1 for a density of 1.0 and 1.62 for a density of 2.0)