ESTestMaker - Ultrasonics 2

estestmaker-ultrasonics-2

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Question 1 of 1

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600832

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To make useful ultrasonic holograms requires

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600833

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Pulse-echo ultrasonic testing

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600834

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Using the pulse echo method with a 0 degree probe having separate transmit and receive crystals, the pattern on a CRT of a flat steel plate would appear as

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600835

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Phantom echoes of multiples when testing thick specimens are a result of

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600836

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The main bang signal is formed as a result of the

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600837

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When an ultrasonic machine is equipped with this option, the pulse energy and pulse length can be adjusted

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600838

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The voltage of a received ultrasonic signal at the machine's receiver is typically

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600839

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In order to adequately amplify received signals an ultrasonic machine's receiver amplifier must have a gain of about

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600840

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The main disadvantage of a broadband receiver in a ultrasonic machine is

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600841

none

The zero time indicating zero depth in the tested sample when using a contact normal beam probe

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600842

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The acoustic impedance of backing material is often increased by

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600843

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A great disadvantage of the old quartz crystal transducers that used the work piece as one of the electrodes was

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600844

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A contact angle beam probe used in fixed housings occasionally requires

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600845

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Wedges used to introduce refracted waves into a test specimen are made of

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600846

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ESTestMaker - Ultrasonics 2

Question 1 of 1

Time Left

To make useful ultrasonic holograms requires

Select the correct answer(s).

(0/0)

Pulse-echo ultrasonic testing

Select the correct answer(s).

(0/0)

Using the pulse echo method with a 0 degree probe having separate transmit and receive crystals, the pattern on a CRT of a flat steel plate would appear as

Select the correct answer(s).

(0/0)

Phantom echoes of multiples when testing thick specimens are a result of

Select the correct answer(s).

(0/0)

The main bang signal is formed as a result of the

Select the correct answer(s).

(0/0)

When an ultrasonic machine is equipped with this option, the pulse energy and pulse length can be adjusted

Select the correct answer(s).

(0/0)

The voltage of a received ultrasonic signal at the machine's receiver is typically

Select the correct answer(s).

(0/0)

In order to adequately amplify received signals an ultrasonic machine's receiver amplifier must have a gain of about

Select the correct answer(s).

(0/0)

The main disadvantage of a broadband receiver in a ultrasonic machine is

Select the correct answer(s).

(0/0)

The zero time indicating zero depth in the tested sample when using a contact normal beam probe

Select the correct answer(s).

(0/0)

The acoustic impedance of backing material is often increased by

Select the correct answer(s).

(0/0)

A great disadvantage of the old quartz crystal transducers that used the work piece as one of the electrodes was

Select the correct answer(s).

(0/0)

A contact angle beam probe used in fixed housings occasionally requires

Select the correct answer(s).

(0/0)

Wedges used to introduce refracted waves into a test specimen are made of

Select the correct answer(s).

(0/0)

In order that one can operate above the critical angle of reflection of longitudinal waves, wedge material for angle beams are

Select the correct answer(s).

(0/0)

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