1. 1. Which is not a recommended method for surface cleaning of a part for
liquid penetrant examination?
a) Cleaning with organic solvents.
b) Blasting with shot or dull sand.
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, c) Cleaning with de-greasers.
d) Use of de-scaling solutions.
e) Ultrasonic cleaning methods. ANS >>> b) Blasting with shot or dull sand.
2. 2. Which of the following weld defects is most likely to be missed by
radiography in a weld
a) Undercutting.
b) Porosity.
c) Slag inclusions.
d) Cracking.
e) Burn through . ANS >>> d) Cracking.
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, 3. 3. In the choices given below, metallographic tests would be the least
informative with regard to the
a) Presence of the non-metallic inclusions.
b) Grain structure in the weld and fusion zone.
c) Ability of the material to withstand repeated fluctuating loads.
d) Extent and structure of the heat affected zone.
e) Number of weld passes. ANS >>> c) Ability of the material to withstand
repeated fluctu- ating loads.
4. 4. In producing a drawing for a scale of 1 ANS >>>50, what would be the
distance represented by a distance on
the drawing of 6 em?
a) 12 cm.
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, b) 30 cm.
c) 50 cm.
d) 240 cm.
e) 300 cm. ANS >>> e) 300 cm.
5. 5. The mechanical test used to determine the ability of a material to resist
failure by brittle fracture
requires the use of
a) A tensile test specimen.
b) A bend test specimen.
c) A compression test specimen.
mailto:https://www.stuvia.com/user/techgrades
liquid penetrant examination?
a) Cleaning with organic solvents.
b) Blasting with shot or dull sand.
mailto:https://www.stuvia.com/user/techgrades
, c) Cleaning with de-greasers.
d) Use of de-scaling solutions.
e) Ultrasonic cleaning methods. ANS >>> b) Blasting with shot or dull sand.
2. 2. Which of the following weld defects is most likely to be missed by
radiography in a weld
a) Undercutting.
b) Porosity.
c) Slag inclusions.
d) Cracking.
e) Burn through . ANS >>> d) Cracking.
mailto:https://www.stuvia.com/user/techgrades
, 3. 3. In the choices given below, metallographic tests would be the least
informative with regard to the
a) Presence of the non-metallic inclusions.
b) Grain structure in the weld and fusion zone.
c) Ability of the material to withstand repeated fluctuating loads.
d) Extent and structure of the heat affected zone.
e) Number of weld passes. ANS >>> c) Ability of the material to withstand
repeated fluctu- ating loads.
4. 4. In producing a drawing for a scale of 1 ANS >>>50, what would be the
distance represented by a distance on
the drawing of 6 em?
a) 12 cm.
mailto:https://www.stuvia.com/user/techgrades
, b) 30 cm.
c) 50 cm.
d) 240 cm.
e) 300 cm. ANS >>> e) 300 cm.
5. 5. The mechanical test used to determine the ability of a material to resist
failure by brittle fracture
requires the use of
a) A tensile test specimen.
b) A bend test specimen.
c) A compression test specimen.
mailto:https://www.stuvia.com/user/techgrades
