Top 150+ Solved Ultrasonic Testing Level 2 MCQ Questions Answer
Q. A focused sound beam is produced by a:
a. Convex mirror
b. Concave transducer
c. Convex lens
d. None of the above
Q. A divergent sound beam is produced by:
a. Concave mirror
b. Convex mirror
c. Convex lens
d. None of the above
Q. A type of cast iron which has ultrasonic properties similar to steel is:
a. White
b. Gray
c. Lamellar
d. Ductile
Q. What effect does hardening have on acoustic velocity in steel?
a. Increases
b. Decreases
c. No effect
d. Any of the above
Q. Variation in acoustic velocity from one type of steel to another is usually less than:
a. 1%
b. 2%
c. 5%
d. 10%
Q. In general, which of the following materials would have the least ultrasonicattenuation?
a. Aluminium
b. Silver
c. Lead
d. Tungsten
Q. The velocity of lamb waves depends on:
a. Elastic constants of test material
b. Plate thickness
c. Frequency
d. All of the above
Q. Which of the following is the most durable piezoelectric material?
a. Barium titanate
b. Quartz
c. Dipotassoium tartrate
d. Rochelle salt
Q. Which of the following methods are used to produce ultrasonic waves?
a. Magnetostrictive methods
b. Magnetoinductive methods
c. Piezoelectric elements
d. All of the above
Q. Spurious indications may be caused by which of the following?
a. Test piece edges
b. Mode conversions
c. Multiple reflections from a single interface
d. All of the above
Q. A reason for using a dual element search unit is:
a. Improving near surface resolution
b. Improving penetration
c. Eliminating wear on the crystal faces
d. None of the above
Q. A wheel transducer is normally considered:
a. A contact method
b. A dynamic scanning method
c. An immersion method
d. A static scanning method
Q. Which of the following is not an advantage of a focused transducer?
a. High sensitivity to small flaws
b. Deep penetration
c. High resolving power
d. Not much affected by surface roughness