The three well-known methods of determining soil resistivity are, soil bar, soil box and______.
A. A-C Bridge
B. six pin method
C. Wenner (4-pin) method
D. holiday pipe survey
正解:C
質問 2:
Who is authorized to make a tack weld?
A. A helper
B. A qualified welder
C. The welding foreman
D. A fitter
正解:B
質問 3:
When heat treating welded joints between dissimilar ferritic metals, the temperature range shall be for which metal?
A. The average of both materials
B. The one with the higher temperature range
C. The one with the lower temperature range
D. Either one may be used
正解:B
質問 4:
The formula t = PD/2SE computes the.
A. Minimum required piping thickness
B. minimum piping thickness
C. average piping thickness
D. maximum piping thickness
正解:A
質問 5:
Who has the responsibility for qualifying welding procedures?
A. Each employer
B. Each subcontractor
C. Each welder
D. Each contractor
正解:A
質問 6:
API 570 applies to piping systems for process fluids such as:
A. Piping systems on trucks, ships and barges
B. Raw, intermediate, and finished products.
C. Firewater
D. Plumbing, sanitary sewers and storm sewers
正解:B
質問 7:
During a MT examination, shall be performed on each area.
A. at least three separate examinations
B. 100% coverage at the required sensitivity
C. prod spacing of at least
D. a calibration of each piece of magnetizing equipment
正解:B
Oouchi -
このAPI-570参考書をまずは通して一周読み解いて、本番試験に受験してスムーズに書けて、無事に受かりました。