OPOWER ENGINEERING 4TH CLASS -
UNIT A6 REVIEW COMPLETE DETAILED
CASE STUDY
The Ultrasonic form of non-destructive examination is done to find
Select one:
a. surface discontinuities
b. sub-surface discontinuities
c. discontinuities
d. cracks - b
(4-046-3.2) A material resists indentation. It demonstrates the mechanical property called
Select one:
a. Brittleness
b. Elasticity
c. Toughness
d. Hardness - d
(4-046-2.9) Stainless steel:
Select one:
a. Is corrosion resistant
b. Has a high carbon content
c. Is not an alloy steel
d. Is magnetic - a
The purpose of flux is to:
Select one:
,a. prevent oxidation of the metals due to heat
b. clean the welds after the procedure is done
c. preheat the weld
d. promote the creation of "slag" - a
(4-046-2.8) Pig iron is:
Select one:
a. Made from cast iron
b. Low in carbon content
c. Made from iron ore
d. The same as white cast iron - c
(4-047-1.5) If a welding electrode has the following identifying number "E7015", what does the "70"
represent?
Select one:
a. 70 kPa
b. 70 000 kPa
c. 70 psi
d. 70 000 psi - d
When Radiographic Testing is being carried out in a plant:
Select one:
a. may be carried out by the on-watch Shift Supervisor.
b. the testing area must be segregated
c. a Safety Codes Officer must be present.
d. work can carry on as usual. - b
(4-047-1.13) If a welding electrode has the identifying number "E6016", what does the "1" represent.
Select one:
, a. The welding position
b. AC or DC with medium penetration
c. DC reverse polarity with medium penetration
d. AC with deep penetration - a
When carrying out a Radiographic Test on a weld, the radiation source is located on one side of the test
piece. What is put on the opposite side to record the test?
Select one:
a. a penetrameter
b. photographic film
c. a developer
d. an Image Quality Indicator - b
When performing a weld, the parent metal is grooved in the process. What is this defect called?
Select one:
a. porosity
b. incomplete fusion
c. a crack
d. an undercut - d
When referring to Penetrant Testing, what is meant by the term "dwell time"?
Select one:
a. It is the time allowed for the developer to pull penetrant from discontinuities.
b. It is the time allowed for the developer to "bleed out".
c. It is the time allowed for the penetrant to soak into discontinuities in the test piece.
d. It is the total length of time that the discontinuity remains visible. - c
(4-047-2.1) When using radiographic inspection, defects such as cracks and porosity show up as:
Select one:
UNIT A6 REVIEW COMPLETE DETAILED
CASE STUDY
The Ultrasonic form of non-destructive examination is done to find
Select one:
a. surface discontinuities
b. sub-surface discontinuities
c. discontinuities
d. cracks - b
(4-046-3.2) A material resists indentation. It demonstrates the mechanical property called
Select one:
a. Brittleness
b. Elasticity
c. Toughness
d. Hardness - d
(4-046-2.9) Stainless steel:
Select one:
a. Is corrosion resistant
b. Has a high carbon content
c. Is not an alloy steel
d. Is magnetic - a
The purpose of flux is to:
Select one:
,a. prevent oxidation of the metals due to heat
b. clean the welds after the procedure is done
c. preheat the weld
d. promote the creation of "slag" - a
(4-046-2.8) Pig iron is:
Select one:
a. Made from cast iron
b. Low in carbon content
c. Made from iron ore
d. The same as white cast iron - c
(4-047-1.5) If a welding electrode has the following identifying number "E7015", what does the "70"
represent?
Select one:
a. 70 kPa
b. 70 000 kPa
c. 70 psi
d. 70 000 psi - d
When Radiographic Testing is being carried out in a plant:
Select one:
a. may be carried out by the on-watch Shift Supervisor.
b. the testing area must be segregated
c. a Safety Codes Officer must be present.
d. work can carry on as usual. - b
(4-047-1.13) If a welding electrode has the identifying number "E6016", what does the "1" represent.
Select one:
, a. The welding position
b. AC or DC with medium penetration
c. DC reverse polarity with medium penetration
d. AC with deep penetration - a
When carrying out a Radiographic Test on a weld, the radiation source is located on one side of the test
piece. What is put on the opposite side to record the test?
Select one:
a. a penetrameter
b. photographic film
c. a developer
d. an Image Quality Indicator - b
When performing a weld, the parent metal is grooved in the process. What is this defect called?
Select one:
a. porosity
b. incomplete fusion
c. a crack
d. an undercut - d
When referring to Penetrant Testing, what is meant by the term "dwell time"?
Select one:
a. It is the time allowed for the developer to pull penetrant from discontinuities.
b. It is the time allowed for the developer to "bleed out".
c. It is the time allowed for the penetrant to soak into discontinuities in the test piece.
d. It is the total length of time that the discontinuity remains visible. - c
(4-047-2.1) When using radiographic inspection, defects such as cracks and porosity show up as:
Select one:
