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1. THE SELECTION OF ONE TEST METHOD OVER ANOTHER IS USUALLY THE DECISIONOF:

A. THE EMPLOYER B. LEVEL IC. LEVEL IID. LEVEL III

2. THE PROCESS OF COMPARING AN INSTRUMENT OR DEVICE WITH A STANDARD ISCALLED

A. ANGULATIONB. CALIBRATIONC. ATTENUATIOND. CORRELATION

3. ANOTHER NAME FOR COMPRESSIONAL WAVE IS

A. LAMB WAVEB. SHEAR WAVEC. LONGITUDINAL WAVED. TRANSVERSE WAVE

4. THE PIEZOELECTRIC MATERIAL IN A SEARCH UNIT WHICH VIBRATES TO PRODUCEULTRASONIC WAVES IS CALLED

A. A BACKING MATERIALB. A LUCITE WADGEC. A TRANSDUCER ELEMENT OR CRYSTALD. A COUPLANT

5. WRITE THE SYMBOL FOR WAVELENGTH  

!. THE NUMBER OF COMPLETE WAVES WHICH PASS A GIVEN POINT IN A GIVENPERIOD OF TIME IS REFFERED TO AS THE

A. AMPLITUDEB. PULSE LENGTHC. FRE"UENCYD. WAVELENGTH

#. THE BOUNDARY BETWEEN TWO DIFFERENT MATERIALS WHICH ARE IN CONTACTWITH EACH OTHER IS CALLED

A. A RAREFACTOR B. A REFRACTOR C. AN INTERFACED. A BOND

$. WHEN PARTICLE MOTION IN A MATERIAL IS PARALLEL TO THE DIRECTION OFWAVE PROPAGATION% THE WAVE IS

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A. COMPRESSIONB. SHEAR  C. RAYLEIGHD. LAMB

&. THE VELOCITY OF SOUND WAVES IS DEPENDENT ON

A. THE PULSE LENGTHB. THE FRE"UENCYC. THE MATERIAL AND MODE OF VIBRATIOND. NONE OF THE ABOVE

1'. WHICH FRE"UENCY WILL PRODUCE THE SHORTEST WAVELENGTH PULSE IN STEEL

A. 1 MH(B. 25 MH(C. 1' MH(D. 5 MH(

11. THE PULSE APPLIED TO THE TRANSDUCER FROM THE PULSER IS

A. PIEZOELECTRICALB. MECHANICALC. ELECTRO)MECHANICALD. ELECTRICAL