RED SEAL Actual Exam Questions 100%
Correct Solutions
What AC phase are is industrial and residential electricity supplied in Canada? -
ANSWER Industrial - 3 phase
Residential - 1 phase
Which stainless steel electrode is most often used for joining mils steel to stainless?
- ANSWER E309L
Describe the conductivity of SAW flux. - ANSWER It is non-conductive when cold, but
highly conductive when molten (1300C).
What can be done to a SAW flux to restore the controlled hydrogen characteristics? -
ANSWER It can be rebaked.
What are the three chemical categories for SAW fluxes? - ANSWER Basic
Neutral
Acidic
How many principle views are there in orthographic projection? - ANSWER Six
, How long may it take for cold cracks to form? - ANSWER Up to two weeks.
What gives acetylene an advantage over natural gas or propane while torch cutting? -
ANSWER Free hydrogen reacts strongly with rust and scale, providing a cleaning
action ahead of a cut.
What is the max safe pressure for acetylene, and what happens above that pressure? -
ANSWER Above 15 psi, acetylene is explosive.
What unit of calibration is used for Flow Meters? - ANSWER LPM/CFH
How would you reduce suck back on a root weld using GTAW? - ANSWER Decrease weld
amperage.
Why is a ceramic ferrule used in Stud Welding? - ANSWER To protect the liquid
weld pool from atmosphere
When DCEP GTAW welding, what kind of cleaning takes place on the material surface?
- ANSWER Cathodic cleaning.
What's the best way to minimize root suck back of a GTAW open root weld? -
ANSWER Lower the current for the root pass.
What must be done to reuse fused SAW fluxes? - ANSWER They must be reground
and screened.
What SMAW electrode can be used to check polarity? - ANSWER 6010. In DCEN it hisses
and has a poor profile.
Correct Solutions
What AC phase are is industrial and residential electricity supplied in Canada? -
ANSWER Industrial - 3 phase
Residential - 1 phase
Which stainless steel electrode is most often used for joining mils steel to stainless?
- ANSWER E309L
Describe the conductivity of SAW flux. - ANSWER It is non-conductive when cold, but
highly conductive when molten (1300C).
What can be done to a SAW flux to restore the controlled hydrogen characteristics? -
ANSWER It can be rebaked.
What are the three chemical categories for SAW fluxes? - ANSWER Basic
Neutral
Acidic
How many principle views are there in orthographic projection? - ANSWER Six
, How long may it take for cold cracks to form? - ANSWER Up to two weeks.
What gives acetylene an advantage over natural gas or propane while torch cutting? -
ANSWER Free hydrogen reacts strongly with rust and scale, providing a cleaning
action ahead of a cut.
What is the max safe pressure for acetylene, and what happens above that pressure? -
ANSWER Above 15 psi, acetylene is explosive.
What unit of calibration is used for Flow Meters? - ANSWER LPM/CFH
How would you reduce suck back on a root weld using GTAW? - ANSWER Decrease weld
amperage.
Why is a ceramic ferrule used in Stud Welding? - ANSWER To protect the liquid
weld pool from atmosphere
When DCEP GTAW welding, what kind of cleaning takes place on the material surface?
- ANSWER Cathodic cleaning.
What's the best way to minimize root suck back of a GTAW open root weld? -
ANSWER Lower the current for the root pass.
What must be done to reuse fused SAW fluxes? - ANSWER They must be reground
and screened.
What SMAW electrode can be used to check polarity? - ANSWER 6010. In DCEN it hisses
and has a poor profile.
