QUIZ) ASNT L3 BASIC 18

341. Eddy current testing of a material cannot

a. measure to conductivity

b. detect small near-surface discontinuities

c. measure its ductility

d. measure its magnetic permeability

342. which of the following properties of Al alloys is most affected by the presence of geometric stress riser?

a. ductility

b. corrosion resistance

c. conductivity

d. endurance limits

343. which of the following weld joints is best suited to radiographic examination?

a. lap b. butt c. edge d. tee

344. the dependent strain occurring under constant stress typically at high temperature is referred to as

a. creep

b. hot cracking

c. delayed cracking

d. thermal fatigue

345. a technical specially that predicts material behavior based upon the size and location of discontinuities

material properties and stress distribution is known as

a. fracture control

b. fatigue and fracture control

c. fracture mechanics

d. failure prediction

346. a test used to determine the influence of notches on the fracture behavior of steel is known as

a. a reduced-section tensile test

b. a coupling test

c. a root bend test

d. an impact test

347. a condition resulting in embrlttlement cracking or blistering in some metals can be the result of

a. fatigue

b. creep

c. exposure to a hydrogen atmosphere

d. chromium depletion

348. a method of protecting aluminum which places an oxide coating on the surface is called

a. clad welding

b. case hardening

c. anodizing

d. paining

349. coating one metal with another metal for the purpose of protecting against stack is known as

a. anodizing

b. press fitting

c. cladding

d. austenization

350. in the casting process a metal insert embedded in the mold to increase the cooling rate is known as a

a. core support

b. cold shut

c. chill

d. chaplet

351. a steel valve body weighting more than one ton(1 ton) would most likely be formed by which of the

following processes?

a. Investment castmg

b. sand casting

c. dia casting

d. centrifugal casting

352. which of the following conditions would exctusively indicate intentional degass of a weld

a. slugging

b. undercut

c. scalping

d. crater cracks

353. crater cracks in welds are caused by

a. delayed breaking of the welding arc

b. promature breaking of the welding arc

c. voltage and current too low during weldings

d. heat input too high

354. if an angle-beam shear-wave is used to emamine plate material the type of discontinuity that most likely

will go undedtected is

a. a lamination parallel to the plate surface

b. a randomly oriented oxide surface

c. a crack normal to the plate surface

d. an edge crack

355. during a cold rolling process on carbon steel ductility in the direction of flow of the rolled material will

a. decrease

b. become anisolropic

c. be unaffected

d. increase

356. in an aluminum-boron composite matrix bonds are formed by

a. thermal bonding

b. adhesive bonding

c. diffusion bonding

d. fusion bonding

357. electromagnetic induction is the principle underlying

a. RT b. UT c. AE d. ET

358. a common precaution used for avoiding static marks on radiographic film is to

a. place lead screens on both side of the film

b. discontinuities which adversely affect use of the part

c. structural and mechanical weaknesses

d. slide film out of the box sloppy

359. eddy current testing provides a basis for detecting cracks and inclusions as well as changes in the materials

a. retentivity b. conductivity c. resistance d. magnetism

360. a joining prodess that does not melt the steel interfaces to be joined and the melting range of the filler metal

does not exceed 450℃(840℉) is

a. electrogas welding b. induction welding

c. ultrasonic welding d. soldering

 

 

 

 

 

 

 

ANSWER

341	342	343	344	345	346	347	348	349	350
C	D	B	A	A	D	C	C	C	C
351	352	353	354	355	356	357	358	359	360
B	A	B	A	A	C	D	D	D	D