In general, shear waves are more sensitive to small discontinuities than longitudinal waves for a given frequency and in a given material because:
a. the
... [Show More] wavelength of shear waves is shorter than the wavelength of longitudinal waves.
b. shear waves are not as easily dispersed in the material.
c. the direction of particle vibration for shear waves is more sensitive to discontinuities.
d. the wavelength of shear waves is longer than the wavelength of longitudinal waves.
...
Common sources of neutrons for neutron radiography are:
a. electron linear accelerators.
b. isotopes of cobalt (e.g., Co-60).
c. nuclear reactors.
d. betatrons.
...
Which of the following statements is true concerning the usage of SNT-TC-IA?
a. SNT-TC-1A is intended for use by a limited set of industrial segments.
b. SNT-TC-1A was generated to satisfy the specification requirements of ASME.
c. SNT-TC-1A was last revised in 1988.
d. SNT-TC-1A is not intended to be used as a strict specification.
d. SNT-TC-1A is not intended to be used as a strict specification.
The SNT-TC-1A Interpretation Panel will respond to inquires about SNT-TC-1A. The inquiry must be:
a. written and stated in general terms.
b. written including specific details of the case, e.g., names, places, dates, and other pertinent facts.
c. considered by the ASNT Board of Directors if it involves decisions that would place ASNT in a position between buyer and seller.
d. ruled upon the Technical and Education Council of ASNT befor the SNT-TC-1A Interpretation Panel prepares a response.
a. written and stated in general terms.
Which of the following statements is true?
a. ASNT has been providing certification examinations for Level III personnel since the late 1960s.
b. SNT-TC-1A was first published in the late 1960s.
c. SNT-TC-1A requires that Level III personnel be qualified and certified by ASNT.
d. SNT-TC-1A was developed to satisfy requirements for NDT personnel qualification and certification set fourth in pats of the ASME Boiler and Pressure Vessel Code.
b. SNT-TC-1A was first published in the late 1960s.
With regard to the training of NDT personnel, the employer:
a. must conduct all of the training on the premises.
b. may engage an outside service who must conduct the training on the employers premises.
c. should not conduct the training, being too close to the company's problems.
d. may engage an outside service but is, nevertheless, responsible for the certification of the company's NDT personnel.
d. may engage an outside service but is, nevertheless, responsible for the certification of the company's NDT personnel.
SNT-TC-1A is intended as a guideline for employers:
a. to establish their own written practice that must be used as a strict specification.
b. to establish their own written practice for the qualification and certification of their NDT personnel.
c. to define training, course requirements for contractors performing outside training services.
d. who are corporate members of ASNT.
b. to establish their own written practice for the qualification and certification of their NDT personnel.
The following is a statement in SNT-TC-1A: "It is recognized that these guidelines may not be appropriate for certain employers, circumstances, and/or applications." What should be done if the guidelines are not appropriate?
a. The employer must change its operations to conform the guidelines.
b. The employer must seek relief from ASNT for inappropriate applications.
c. The employer should review the detailed recommendations and modify them, as necessary, to meet its particular needs.
d. The employer shall submit an inquiry in writing directed to the SNT-TC-1A Interpretation Panel.
c. The employer should review the detailed recommendations and modify them, as necessary, to meet its particular needs.
Which of the following statements is not true?
a. Certification is written testimony of qualification.
b. Qualification is the skill, training, and experience required for personnel to properly perform the duties of a specific job.
c. The employer is the corporate or private entity that employs personnel for wages or salary.
d. A certifying agency is any organization used by an employer in training NDT personnel.
d. A certifying agency is any organization used by an employer in training NDT personnel.
Who should be responsible to assess whether or not an individual should be qualified and certified who does not perform NDT, but monitors and evaluates NDT?
a. ASNT
b. The individual's employer.
c. A government regulatory agency.
d. The customer's auditor.
b. The individual's employer.
To which of the following NDT methods is SNT-TC-1A currently not applicable?
a. Visual testing
b. Thermal/infrared testing
c. Acoustic emission testing
d. Holographic testing.
d. Holographic testing.
ASNT intended that the recommendation of SNT-TC-1A be applied:
a. with flexibility and reason.
b. precisely as written.
c. as minimum requirements.
d. as maximum requirements.
a. with flexibility and reason.
Of the following, which is most appropriate to determine the needs to qualify and certify personnel whose only NDT function is to operate digital thickness equipment?
a. ASNT
b. ASME
c. The employer
d. The customer
c. The employer
Certification is:
a. the skill, training, and experience required for personnel to properly perform the duties of a specific job.
b. written testimony of qualification.
c. intended to be conferred by an organization independent from the employer.
d. intended to be conferred by an organization hired by the employer.
b. written testimony of qualification.
Use of SNT-TC-1A is mandatory when:
a. the material being tested is for a U.S. Air Force contract.
b. the material being tested is for a U.S. Navy contract.
c. it has been specified by the customer.
d. the material being tested is for a U.S. Army contract that requires certification of NDT personnel.
c. it has been specified by the customer.
The basic levels of qualification recommended by SNT-TC-1A are:
a. Trainee, Level I, Level II and Level III.
b. Trainee, Apprentice, Level I, Level II, and Level III.
c. Level I, Level II, and Level III.
d. Level I, Level II, Level III, and Instructor.
c. Level I, Level II, and Level III.
Should personnel that operate ultrasonic digital thickness measurement equipment be qualified and certified?
a. Yes, because SNT-TC-1A requires that all personnel performing NDT be qualified and certified.
b. No, because SNT-TC-1A does not cover that specific operation.
c. Only if required by industry codes, standards and specifications.
d. Whether any NDT personnel should be qualified and certified depends solely upon the needs of the employer and the requirements of the employer's customers or clientele.
d. Whether any NDT personnel should be qualified and certified depends solely upon the needs of the employer and the requirements of the employer's customers or clientele.
According to the recommendations of SNT-TC-1A, which of the following is true concerning a Trainee's activities?
a. The Trainee may not conduct nondestructive tests independently and may not report test results.
b. The Trainee may not conduct nondestructive tests independently, but may interpret test results if acting under written instructions.
c. The Trainee should work along with a certified individual and my be considered a Level I, provided that the certified individual co-signs any test reports.
d. Once the Trainee has worked along with a certified individual, the Trainee may then independently perform any activities as directed by the certified individual.
a. The Trainee may not conduct nondestructive tests independently and may not report test results.
According to SNT-TC-1A, which of the following is not true for a Level III?
a. Should be capable of assisting in establishment of acceptance criteria.
b. Must train and examine the Level I and II personnel in his or her organization.
c. Should be familiar with other commonly used NDT methods.
d. Should be capable of establishing techniques and selecting of test methods.
b. Must train and examine the Level I and II personnel in his or her organization.
According to written instructions, an NDT Level I may be qualified to perform:
a. specific calibrations.
b. specific nondestructive tests.
c. specific evaluations.
d. all of the above, and record test results.
d. all of the above, and record test results.
May a Level I independently perform, evaluate, and sign for results of nondestructive tests with supervision and guidance from a Level II or III?
a. Yes, the intent in SNT-TC-1A is that the Level I may perform the above functions provided that they are in accordance with written instruction of a Level II or III.
b. No, the Level I may perform the above functions in accordance with written procedures, but must be under constant supervision and guidance of a Level II or Level III.
c. No, the Level I may not sign for test results.
d. No, the Level I is not allowed to take any independent action.
a. Yes, the intent in SNT-TC-1A is that the Level I may perform the above functions provided that they are in accordance with written instruction of a Level II or III.
Which of the following statements is true concerning the definitions of Trainee, Level I, II, and III in SNT-TC-1A?
a. The qualifications for Level III equal and exceed those of level II.
b. SNT-TC-1A was intended for use by employers to determine the proficiency of individuals at each level.
c. Except for a provision for a Trainee, Levels I, II, and III may not be further subdivided. Level IIIs may not perform Level II functions unless they pass Level II examinations.
d. A Trainee may perform all of the functions of a Level I if following written instructions.
a. The qualifications for Level III equal and exceed those of level II. [Show Less]