Cwb Level 2 Study Guide Questions And Correct Answers

Nonrelevent Indications {Ans: Indications cause by features or design of material}during MT inspection an AC will magnetize the ______ of the part. {Ans: surface (skin effect)}typical amp output from a yoke is? {Ans: 5 to 10 amps}what is the range of applied field normally used in magnetic particle inspection? {Ans: permeability}disturbance of the eddy current because of a flaw causes a change in the voltage. this can be measured using a____? {Ans: volt meter}what range should the applied filed be applied to avoid saturation of a material? {Ans: 30 to 70%}the ability of a liquid to penetrate a narrow opening depends on the phenomenon of? a. fluorescence b. capillary action c. density d. viscosity e. surface tension {Ans: b. capillary action}how are arc strikes avoided when using Prods for MP inspection? {Ans: current is not applied until both prods are on the part.}the lines of force are _______ the strength of the applied current? a. proportional b. 2x bigger c. 2x smaller {Ans: a. proportional}true or false. the most favorable direction for detecting a crack when using prods is when the crack lies along the flux lines between the pods