function Question (qname,
type,
qstring,
response,
comment,
corrects,
explan,
score,
ifcorrect,ifwrong,ifnull,
img)
{this.qname=qname;
this.type=type;
this.qstring=qstring;
this.response=response;
this.comment=comment;
this.corrects=corrects;
this.explan=explan;
this.score=score;
this.ifcorrect=ifcorrect;
this.ifwrong=ifwrong;
this.ifnull=ifnull;
this.img=img;
}
var zin=1,top=0, mycount=0, waitTime=0, qright=0, mycomment;
var global=new Array(3);
var recent, recent2, recdone=false, opera7, opera=CheckOpera56();
function cachewrite(s,idx){global[idx]+=s;}
function CheckOpera56()
{
var version;
if (navigator.userAgent.toLowerCase().indexOf('opera') == -1) return false;
version=parseInt(navigator.appVersion.toLowerCase());
if (version>6) {opera7=true; return false;}
if (version<5) return false;
return true;
}
resp=new Array("Longitudinal waves","Shear waves","Surface waves","All of the above")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest001 = new Question(
"Question 1",
0,
"Sound can propagate as:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Surface waves","Pressure waves","Compressional waves","Both B and C are correct")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest002 = new Question(
"Question 2",
0,
"Longitudinal waves are also called:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Move in an elliptical pattern","Oscillate at a right angle to the direction of wave propagation","Oscillate parallel to the direction of wave propagation","Do not actually move")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest003 = new Question(
"Question 3",
0,
"In the transverse or shear wave, the particles:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Solids","Gases","Liquids","Both B and C are correct")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest004 = new Question(
"Question 4",
0,
"Shear waves do not propagate in:
",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("One wavelength","Two wavelengths","Three wavelengths","Infinite wavelengths")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest005 = new Question(
"Question 5",
0,
"Surface or Rayleigh waves travelling along the surface of relative thick solid material, penetrate to a depth of approximately:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A longitudinal wave","A shear wave","A surface wave","A Lamb wave")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest006 = new Question(
"Question 6",
0,
"Which of the following waves is able to follow a surface around a curve?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A longitudinal wave","A shear waves","A surface wave","A lamb wave")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest007 = new Question(
"Question 7",
0,
"Which of the following waves is only able to travel through a thin section of material?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("One-half","One","Two","0ne-quarter")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest008 = new Question(
"Question 8",
0,
"In order to have a reasonable chance at detecting a discontinuity, the reflective surface of the discontinuity must have a dimension that is at least as long as ________ wavelength.
",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Sensitivity and penetration","Space and time","Sensitivity and resolution","Frequency and size")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest009 = new Question(
"Question 9",
0,
"The terms used to describe a technique’s ability to locate flaws are:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Resolution","Sensitivity","Wavelength","Frequency")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest010 = new Question(
"Question 10",
0,
"The ability to locate a small discontinuity is called:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Resolution","Sensitivity","Effectiveness","Phase delay")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest011 = new Question(
"Question 11",
0,
"The ability to locate discontinuities that are close together within the material is called:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("With increased depth of a defect","With a decrease in the transducer frequency","When the transducer diameter is reduced","With an increase in transducer frequency")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest012 = new Question(
"Question 12",
0,
"Resolution generally increases:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Become more compressed","Scatter more from large or course grain structure","Convert to a different wave mode","Become more penetrating")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest013 = new Question(
"Question 13",
0,
"As frequency increases, sound tends to:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Its intensity diminishes with distance","It spreads perpendicular to the primary direction of wave travel","Its speed remains constant","All of the above")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest014 = new Question(
"Question 14",
0,
"When sound travels through a medium:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Shear factor","Propagation","Attenuation","Impedance")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest015 = new Question(
"Question 15",
0,
"The combined effect of scattering and absorption is called:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Z","I","V","P")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest016 = new Question(
"Question 16",
0,
"Acoustic impedance is identified by the letter:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Reflected waves","Refracted waves","Interface waves","Both A and B")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest017 = new Question(
"Question 17",
0,
"When an ultrasound wave passes through an interface between two materials at an oblique angle, and the materials have different indices of refraction, it produces:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Attenuation","Refraction","Beam spread","Beam impedance")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest018 = new Question(
"Question 18",
0,
"When a wave encounters an interface at an oblique angle, what takes place at the interface due to the different sound velocities of the two materials?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Acoustic impedance","Signal to noise ratio","Refraction","Reflection")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest019 = new Question(
"Question 19",
0,
"The measure of how a signal from a defect compared to other background reflections is called:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Lithium","Piezoelectric ceramic","Sulfide","Quartz")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest020 = new Question(
"Question 20",
0,
"The active element of most acoustic transducers used today is:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Electrical construction","Material construction","Mechanical construction","All of the above")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest021 = new Question(
"Question 21",
0,
"Which of the following could influence the behavior of a transducer?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("An acoustical impedance matching layer","A large angle of refraction","A small angle of refraction","A large angle of reflection")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest022 = new Question(
"Question 22",
0,
"Immersion transducers have:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Composite frequency adjustment","Vibration suppressor","Wear plate","Phase adjustment sensor")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest023 = new Question(
"Question 23",
0,
"Contact transducers often incorporate a:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Resin","Oil","Backing material with a similar the impedance of the transducer","Any of the above will work")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest024 = new Question(
"Question 24",
0,
"What is used to support the active element and dampen the transducers characteristics?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Better transmitters","Better receivers","Used in high temperature applications","All of the above")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest025 = new Question(
"Question 25",
0,
"Some transducers are specifically fabricated to be:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A slightly damped transducer","A small size and low frequency transducer","A highly damped transducer","All of the above")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest026 = new Question(
"Question 26",
0,
"Which type of transducer will have better resolution?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A wide frequency range","A wide resolution range","A shift in frequency range","A narrow frequency range")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest027 = new Question(
"Question 27",
0,
"Less damped transducers will exhibit:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("From a point on the active surface","From most of the active surface","From a small area in the center of the active surface","From the edges of the active surface")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest028 = new Question(
"Question 28",
0,
"The sound that emanates from a piezoelectric transducer originates:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Far field zone","Surface field zone","Near field zone","Phase shift zone")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest029 = new Question(
"Question 29",
0,
"The area in front of a transducer where there are extensive fluctuations in the sound field is called the:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Far field zone","Near field zone","Interface between the transducer and plastic wedge","Band along the central axis")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest030 = new Question(
"Question 30",
0,
"The sound energy or ultrasonic beam is more uniform in the:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("High frequency transducers","Low frequency transducers","Angle beam transducers","Larger diameter transducers")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest031 = new Question(
"Question 31",
0,
"Beam spread is greater when using:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Used with an immersion tank","Used with an automated system","Used on complicated shaped parts","Hand manipulated")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest032 = new Question(
"Question 32",
0,
"Contact transducers are used for direct contact inspections, and are generally:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Contact inspection","Weld inspection","Angle beam inspection","All of the above")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest033 = new Question(
"Question 33",
0,
"Which of the following ultrasonic techniques require the probe to be held firmly against component?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A spherically focused transducer","A cylindrically focused transducer","A shaped shoe","A large diameter transducer")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest034 = new Question(
"Question 34",
0,
"When performing a contact inspection on a curved surface, what pieced of equipment can be used to improve coupling?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Crystal mosaic transducer","Dual element transducer","Liquid crystal transducer","Bi polar transducer")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest035 = new Question(
"Question 35",
0,
"What type of transducer contains two independently operating elements in a single housing?
",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Can not start receiving reflected signals until the element has stopped ringing from its transmit function","Needs to have a high pulse rate","Should be used in the dual mode","Can only be made with lithium sulfate")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest036 = new Question(
"Question 36",
0,
"When a single element transducer is operating in the pulse echo mode, the element:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Reflected shear wave into the part","Longitudinal wave into the part","Shear wave into the part","Compression wave into the part")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest037 = new Question(
"Question 37",
0,
"Angle beam transducers and wedges are typically used to introduce a:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Mosaic transducer","Single crystal transducer of small diameter","Composite transducer","Paint brush transducer")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest038 = new Question(
"Question 38",
0,
"Which type of transducer can be used to scan wide areas when high sensitivity is not required?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Gel","Goo","Couplant","Contact paste")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest039 = new Question(
"Question 39",
0,
"What is the material called that is used to improve the transmission of ultrasonic sound energy from the transducer into the part?
",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Surface rust","Surface blemishes","Sound energy","Air")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest040 = new Question(
"Question 40",
0,
"Couplant displaces the__________ and makes it possible to get more sound energy into the test specimen.",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Water","Oil","Glycerin","All of the above")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest041 = new Question(
"Question 41",
0,
"Which of the following would make a good couplant?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Pulser","Amplifier","Transducer","Scanner")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest042 = new Question(
"Question 42",
0,
"What part of the ultrasonic machine generates short, large-amplitude pulses of controlled energy?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Attenuation","Impedance","Shielding","Resistance")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest043 = new Question(
"Question 43",
0,
"The total resistance that the cable presents to the electrical current passing through it is called:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A-scan","B-scan","C-scan","All of the above")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest044 = new Question(
"Question 44",
0,
"Which type of screen presentation displays the amount of received ultrasonic energy as a function of time?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A-scan","B-scan","C-scan","All of the above")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest045 = new Question(
"Question 45",
0,
"Which type of screen presentation displays a profile or cross-sectional view of the test specimen?
",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A-scan","B-scan","C-scan","All of the above")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest046 = new Question(
"Question 46",
0,
"Which type of screen presentation displays a plan-type view of the location and size of the test specimen features?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Tip diffraction","Immersion","Surface mode diffraction","Contact testing")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest047 = new Question(
"Question 47",
0,
"In angle-beam testing, when the geometry of the part is relatively uncomplicated and the orientation of a flaw is well known, the length of a crack can be determined by a technique known as:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Standardization","Calibration","Accuracy","Tuning")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest048 = new Question(
"Question 48",
0,
"The act of evaluating and adjusting the precision and accuracy of the measurement equipment is called:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Reference standards","Industry standards","Accuracy standards","Modeling standards")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest049 = new Question(
"Question 49",
0,
"What is used to establish a general level of consistency in measurements, and to help interpret and quantify the information contained in the received signal?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Through transmission","Pitch/catch with two transducers","Pulse echo","Both B and C")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest050 = new Question(
"Question 50",
0,
"What type of set-up can provide information about both the size of the flaw and distance between the flaw and the transducer?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Can be made from similar material as long as the velocity is the same","Should be the same material being inspected","Must have the same impedance values as the base material","Can only be used once")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest051 = new Question(
"Question 51",
0,
"The material of the reference standard used to setup for a flaw inspection:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Side drilled holes","Flat bottom holes","EDM notches","All of the above")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest052 = new Question(
"Question 52",
0,
"Artificial flaws can be produced by using:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("They are more difficult to detect with NDT methods","They are always the same size and length","It is cost prohibitive to produce them","Both A and C")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest053 = new Question(
"Question 53",
0,
"Why aren't real defects commonly used in calibration and reference standards?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("An IIW block","A DSC block","A rompus block","A shear wave calibration block")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest054 = new Question(
"Question 54",
0,
"A calibration block produced by the International Institute of Welding is called:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("An IIW block","A DSC block","A rompus block","A shear wave calibration block")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest055 = new Question(
"Question 55",
0,
"Which type of calibration block closely resembles the miniature angle-beam block and is used in a similar way?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("An IIW block","A DSC block","A rompus block","An RC block")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest056 = new Question(
"Question 56",
0,
"Which type of calibration block is used to determine the resolution of angle beam transducers per requirements of AWS and AASHTO?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Distance/Sensitivity block","A DSC block","A rompus block","A shear wave calibration block")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest057 = new Question(
"Question 57",
0,
"Which type of test block is used to check horizontal linearity and the dB accuracy per requirements of AWS and AASHTO?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Distance Application Code","Direct Amplitude Code","Distance Amplitude Correction","Divergence Application Couplant")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest058 = new Question(
"Question 58",
0,
"DAC stands for:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Distance Amplitude Correction Curve","Direct Application Correction Curve","Distance Area Correction Calculation","Distance Area Computer Controlled")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest059 = new Question(
"Question 59",
0,
"DACC stands for:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("The center frequency at which the transducer operates","The range of the transducer's operating frequency","The highest fequency produced by the transducer","None of the above")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest060 = new Question(
"Question 60",
0,
"The frequency marked on a transducer indicates:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Direct the sound out of the transducer","Provide impedance matching between the active element and the test component","Control the ringing of the active element","None of the above")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest061 = new Question(
"Question 61",
0,
"The purpose of the backing material in a transducer is to:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Reflection","Refraction","Mode conversion","Reflection and refraction")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest062 = new Question(
"Question 62",
0,
"When a longitudinal wave encounters an interface between two material with different accoustic impedances, what occurs when the angle of incidence is 90 degrees?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Wave speed","Frequency","Hertz","None of the above")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest063 = new Question(
"Question 63",
0,
"The number of cylces per second is the definition of: ",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("20,000 MHz","20,000 Hz","2 MHz","2 Hz")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest064 = new Question(
"Question 64",
0,
"Ultrasound is generally defined as sound at frequency above the threshold of human hearing, which is?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("l","o","g","None of the above")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest065 = new Question(
"Question 65",
0,
"What Greek letter is used to represent wavelength?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("
","
","
","None of the above")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest066 = new Question(
"Question 66",
0,
"What is the correct formula for calculating the wavelength when the wave velocity and frequency are known?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Is constant","Decreases with distance from the transducer","Increases with distance from the transducer","None of the above")
corr=new Array("1","0","0","0")
comm=""
valu=""
quest067 = new Question(
"Question 67",
0,
"Within a given material, the speed of sound:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Density and specific gravity","Atomic mass and density","Density and elastic properties","Acoustic impedance and atomic mass")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest068 = new Question(
"Question 68",
0,
"Which material properties affect the speed of sound within a material?",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A unit of measure used only for sound measurements","A logarithmic unit that describes a ratio of two measurements","A logarithmic unit that describes the product of two measurements","None of the above")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest069 = new Question(
"Question 69",
0,
"A decibel is:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("Six","Two","Twelve","Sixty")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest070 = new Question(
"Question 70",
0,
"A 6dB change in the measured ultrasonic signal strength indicates that the sound intensity changed by a factor of :",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("A high amount of transmitted sound energy","A small degree of refraction","A large critical angle","A high amount of reflected sound energy ")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest071 = new Question(
"Question 71",
0,
"The a large acoustic impedance mismatch at an interface will result in: ",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("The refracted angle of the wave","The reflected angle of the wave","Both A and B","None of the above")
corr=new Array("0","0","1","0")
comm=""
valu=""
quest072 = new Question(
"Question 72",
0,
"Snell's Law describes the relationship between the sound velocity and:
",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("The angle of the refracted longitudinal wave is less than 90o","The angle of the refracted longitudinal wave is exactly 90o","The angle of the refracted longitudinal wave is greater than 90o","The angle of the refracted shear wave is exactly 90o")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest073 = new Question(
"Question 73",
0,
"The first critical angle describes the condition where the:",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("One of the two materials is a liquid","The incident angle is greater than the first critical angle","The incident angle is greater than the second critical angle","The incident angle is not normal to the interface")
corr=new Array("0","0","0","1")
comm=""
valu=""
quest074 = new Question(
"Question 74",
0,
"Mode conversion, occurs when a sound wave encounters an interface between materials of different acoustic impedance and:
",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
resp=new Array("3 dB","6 dB","9 dB","12 dB")
corr=new Array("0","1","0","0")
comm=""
valu=""
quest075 = new Question(
"Question 75",
0,
"The bandwidth of a transducer is often determined by evaluating the frequency domain plot of a transduce and determining the frequences that are _______ below the amplitude of the peak frequency. ",
resp,
comm,
corr,
"",
valu,
1,
0,
0,
"");
questions = new Array (
quest001,quest002,quest003,quest004,quest005,quest006,quest007,quest008,quest009,quest010,quest011,quest012,quest013,quest014,quest015,quest016,quest017,quest018,quest019,quest020,quest021,quest022,quest023,quest024,quest025,quest026,quest027,quest028,quest029,quest030,quest031,quest032,quest033,quest034,quest035,quest036,quest037,quest038,quest039,quest040,quest041,quest042,quest043,quest044,quest045,quest046,quest047,quest048,quest049,quest050,quest051,quest052,quest053,quest054,quest055,quest056,quest057,quest058,quest059,quest060,quest061,quest062,quest063,quest064,quest065,quest066,quest067,quest068,quest069,quest070,quest071,quest072,quest073,quest074,quest075)
function doQuestion(quest)
{
var numdo;
var numord=eval(quest+1);
var i=-1, ii, type, myname, gadget;
type=questions[quest].type;
numdo=type>=3?1:questions[quest].response.length;
document.writeln ("")
document.write("\n")
document.write(" \n")
document.write(" \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write(" ")
document.write(numord)
document.write("\n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write(" | \n")
document.write(" \n")
document.write(" ")
if (questions[quest].img!="") {
document.write("\n")
document.write(" ![](\"")) \n")
document.write(" ")
}
document.write("\n")
document.write(" ")
document.writeln(questions[quest].qstring)
document.write("\n")
document.write(" | \n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" \n")
document.write(" ")
for (i=0; i=3) gadget="text";
else if (type==1) {
myname+="_"+(i<9?"0":"")+(i+1);
gadget="checkbox";}
document.write("\n")
document.write(" ")
document.write(type==7?"":"\" class=\"input\" value=\"\">\n")
if (type<3) document.write(questions[quest].response[i]);
document.write("
\n")
document.write(" ")
}
document.write("\n")
document.write(" | \n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write(" \n")
document.write(" \n")
document.write(" | \n")
document.write("
\n")
document.write(" \n")
document.write(" | | \n")
document.write("
\n")
document.write(" ")
}
function doTest() {
var count, i, newq;
questions.sort(myrandom);
newq=questions.slice(0,35);questions=newq;
for (i=0; i=l) break; else s="0"+s;
return s
}
function CheckQName(wapf,ii,i,multi,selection){
var len;
if (!multi) return(wapf.elements[ii].name==questions[i].qname);
len=questions[i].qname.length;
if (wapf.elements[ii].name.substring(0,len)!=questions[i].qname) return false;
if (wapf.elements[ii].name.substring(len,len+1)!="_") return false;
if (eval(wapf.elements[ii].name.substring(len+1,len+3))==(selection+1)) return true;
return false;
}
function errore(uno)
{
if (!errori) global[1]="You have made the following errors
";
++errori;
cachewrite(""+uno+"
This answer is not correct."+mycomment+"
",2);
mycomment="";
}
function testIE5plus(){
var pos=navigator.appVersion.lastIndexOf('MSIE ');
if (pos != -1) {
pos+=5;
if (eval(navigator.appVersion.charAt(pos))>4)
return true;}
return false;}
function correct(wapf)
{
var i, ii, t, re, tmp, selection, multi, multipage=0, type, isnull, iswrong, iscorrect, evaluation=0, total=0, udat;
errori=waitTime=0;
udat=new Array();
for (i=0, ii=0; i"+tmp.value+"
";
if (opera) tmp.value="";}}
global[0]=global[2]="";
global[1]="Congratulations, you haven't made any errors
";
cachewrite("Results",0)
now= new Date()
cachewrite(""+fill((now.getMonth()+1),2)+"/"+fill(now.getDate(),2)+"/"+now.getYear()+" "+fill(now.getHours(),2)+":"+fill(now.getMinutes(),2)+"
",0)
cachewrite("Ultrasound Quiz 1
\n",0);
if (udat.length>0) {
cachewrite("Information
\n",0);
for (i=0; i=3 && wapf.elements[ii].value!="") {
isnull=false;
if (wapf.elements[ii].value.toLowerCase()==questions[i].corrects.toLowerCase()) iscorrect=true;
else iswrong=true;
++selection;}
else if (wapf.elements[ii].checked) {
if (questions[i].score!="") evaluation+=questions[i].score[selection];
if (isnull) isnull=false;
if (questions[i].corrects[selection]=="1") iscorrect=(iswrong==false)?true:false;
else {
iswrong=true;
if (multi && questions[i].corrects!='') errore(questions[i].qname);
}
if (questions[i].comment!="" && questions[i].comment[selection]!="")
mycomment+=((iscorrect || questions[i].corrects=='')?""+questions[i].qname+"
":"")+""+questions[i].comment[selection]+"
";
} else {
if (questions[i].corrects[selection]=="1") {
iswrong=true;
if (multi && questions[i].corrects!='') errore(questions[i].qname);
}}
++selection;
}}
if (multi==false && (isnull || iswrong)) {
var okresp="", z;
if (type>=3) okresp=questions[i].corrects;
else {
for (z=0; zYou have made "+errori+" "+(errori==1?"error":"errors")+".",2);
cachewrite("
Total score: "+total+".
",2);
cachewrite("
",2)
cachewrite(aknw,2)
winr=window.open('','wapres', 'titlebar=1,location=0,directories=0,menubar=1,toolbar=0,scrollbars=1,resizable=1,status=1')
for (i=0; i<3; i++) winr.document.write(global[i]);winr.document.close()
if ((opera || opera7) && multipage) {
document.forms[0].elements[0].value='Print...';
document.forms[0].elements[1].value='Close';
for (i=0; i