Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
|
When conducting ultrasonic inspection, boilers, pressure vessels, and piping systems must not be in service. T or F |
False |
|
|
What method of detection is effective and widely used to detect leaks in the weld joints of tanks and containers? |
Fluorescent penetrant |
|
|
List four nondestructive weld tests. A. B. C. D. |
A. Visual B. Liquid dye penetrant C. Radiographic D. Ultrasonic |
|
|
Brazen welding is used extensively in the repair of _______ and ________ iron parts. |
Cast iron and malleable |
|
|
Which type of electrode is used to produce the weld in a gas tungsten arc welding (GTAW) process? A. Consumable tungsten B. Nonconsumable tungsten |
B. Nonconsumable tungsten |
|
|
Advantages of submerged arc welding include: 1. A protective coating is required over the electrode 2. The arc is not visible 3. Weld seams are neat and uniform in appearance 4. A skilled welder is not required to operate the machinery 5. Very little gas or fumes rise from the weld A) 2, 3, 4 B) 1, 4, 5 C) 2, 3, 5 D) 1, 3, 5 E) 3, 4, 5 |
C) 2, 3, 5 |
|
|
The basic difference between fluorescent penetrant and dye penetrant is that dye penetrant: A) Requires a “black” light to detect cracks B) Makes valuable use of penetrameters C) Involves the use of a developer compound D) Cannot be reliable in locating porosity in a weld E) Uses less compounds than fluorescent |
C) Involves the use of a developer compound |
|
|
Submerged arc welding is _____ welding process. A) A braze B) An oxy-acetylene C) An AC or DC electric D) An AC electric E) A DC |
C) An AC or DC electric |
|
|
When braze welding, the filler rod is usually: A) Alloy steel B) Aluminium C) Brass D) Antimony E) Bronze |
E) Bronze |
|
|
The current supply for electric arc welding may be a/an: 1. Alternating current 2. Direct current and straight polarity 3. Direct current and reverse polarity 4. Direct current generators A) 2, 3, 4 B) 1, 3, 4 C) 1, 2, 4 D) 1, 2, 3, 4 E) 1, 3 |
D) 1, 2, 3, 4 |
|
|
A welding electrode stamped “E6010” would have a tensile strength of: A) 60 000 psi B) 6 010 psi C) 6 100 psi D) 60 100 psi E) 6 000 psi |
A) 60 000 psi |
|
|
Rules for uses of radiographic and ultrasonic inspection are covered in the: A) ASME Section II Materials Specification B) Canadian Standards B-51 C) Rules for Care and Operation of Power Boilers Code D) ASME Section IX Welding and Brazing Qualifications E) Power Boiler Code Section I |
E) Power Boiler Code Section I |
|
|
The following grades of Pressure Welders Certificate of Competency are established under the Boilers Act. A) “A” and “B” B) “A” C) “B” and “C” D) “AC” and “DC” E) “B” |
C) “B” and “C” |
|
|
A braze welding process: A) Is a form of fusion welding B) Requires two dissimilar materials C) Heats metal to a bright red colour D) Is used in the repair of cast iron parts E) Is done with a temperature above 870ºC |
D) Is used in the repair of cast iron parts |
|
|
Non-alloy low carbon steel filler rods are most often used in: A) Electric arc welding B) Heli arc welding C) Submerged arc welding D) Oxy-acetylene welding E) Forge welding |
D) Oxy-acetylene welding |
|
|
With straight polarity: A) The welding electrode is connected to the negative terminal B) AC or DC power may be supplied to the electrode C) The welding electrode is connected to the positive terminal D) DC power is supplied to the electrode E) AC power is supplied to the electrode |
A) The welding electrode is connected to the negative terminal |
|
|
When penetrameters are used for testing welds, the method being used is: A) Dye penetrant B) Ultrasonic C) Fluorescent penetrant D) Visual E) Radiographic |
E) Radiographic |
|
|
With reverse polarity: A) The welding electrode is connected to the positive terminal B) DC power is supplied to the electrode C) The welding electrode is connected to the negative terminal D) AC power is supplied to the electrode E) AC or DC power may be supplied to the electrode |
A) The welding electrode is connected to the positive terminal |
|
|
If a welding electrode has the identifying number “E6016”, what does the “1” represent? A) AC with deep penetration B) DC reverse polarity with medium penetration C) DC with deep penetration D) AC or DC with medium penetration E) The welding position |
E) The welding position |
|
|
Electric arc temperatures may be as high as: 1. 3,000°C 2. 4,250°C 3 5,325°C 4. 7,450°C 5. 8,300°C A) 5 325°C B) 3 000°C C) 4 250°C D) 8 300°C E) 7 450°C |
D) 8 300°C |
|
|
Ultrasonic inspection involves the use of: A) High frequency vibrations B) Fluorescent penetrant dye C) Gamma rays D) Radiographic penetrameters E) Short wavelength radiation |
A) High frequency vibrations |
|
|
Destructive testing of a weld means the: A) Destruction of one complete weld of a structure or vessel B) Mechanical testing of a sample or small portion of a weld C) Raising hydrostatic pressure on a vessel to the point of rupture D) Thermal shocking a vessel to the point of fracture E) Destruction of the complete vessel after construction |
B) Mechanical testing of a sample or small portion of a weld |
|
|
When using radiographic inspections, defects such as cracks and porosity show up as: A) Lighter shadows on the penetrameter B) Lighter shadows on the photographic paper C) Darker shadows on the penetrameter D) Wave signals on a small screen E) Darker shadows on the photographic paper |
E) Darker shadows on the photographic paper |
