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LSU CM 2112 Final ali Questions and
Correct Answers/ Latest Update / Already
Graded
Which of the followings is not a common non-destructive test for
welds?
Ans: Schmidt hammer
What is the most commonly used gas in gas welding?
Ans: Acetylene
(Gas welding) By varying the ratio of oxygen to acetylene in the gas
mixture supplied by the torch it is possible to vary the efficiency of the
combustion and alter the nature of the flame. If the oxygen supply is
slightly greater than the supply of acetylene by volume, what is known
as ....... is resulted.
Ans: An "oxidizing" flame
Laser beam welding is
Ans: A process that fuses materials with the heat from a
concentrated coherent beam impinging upon the members to
be joined
All rights reserved © 2025/ 2026 |
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Which of the followings is NOT accurate?
Ans: Gas welding refers to a group of welding processes which
produces coalescence of metals by heating them with an arc.
(shipbuilding) It is easier to obtain watertightness and oiltightness with
welded joints, compared to riveting.
Ans: True
Friction Stir Welding is a solid-state welding process which produces
coalescence of material by the heat obtained from a mechanically
induced rotating motion between tightly butted surfaces.
Ans: True
Gas welding, arc welding, and resistance welding all provide heat
sources of sufficient intensity to achieve fusion welds
Ans: True
Oxy-acetylene welding tends to be faster than other fusion welding
processes because the process temperature is high in comparison with
the melting temperature of the metal.
All rights reserved © 2025/ 2026 |
LSU CM 2112 Final ali Questions and
Correct Answers/ Latest Update / Already
Graded
Which of the followings is not a common non-destructive test for
welds?
Ans: Schmidt hammer
What is the most commonly used gas in gas welding?
Ans: Acetylene
(Gas welding) By varying the ratio of oxygen to acetylene in the gas
mixture supplied by the torch it is possible to vary the efficiency of the
combustion and alter the nature of the flame. If the oxygen supply is
slightly greater than the supply of acetylene by volume, what is known
as ....... is resulted.
Ans: An "oxidizing" flame
Laser beam welding is
Ans: A process that fuses materials with the heat from a
concentrated coherent beam impinging upon the members to
be joined
All rights reserved © 2025/ 2026 |
, Page |2
Which of the followings is NOT accurate?
Ans: Gas welding refers to a group of welding processes which
produces coalescence of metals by heating them with an arc.
(shipbuilding) It is easier to obtain watertightness and oiltightness with
welded joints, compared to riveting.
Ans: True
Friction Stir Welding is a solid-state welding process which produces
coalescence of material by the heat obtained from a mechanically
induced rotating motion between tightly butted surfaces.
Ans: True
Gas welding, arc welding, and resistance welding all provide heat
sources of sufficient intensity to achieve fusion welds
Ans: True
Oxy-acetylene welding tends to be faster than other fusion welding
processes because the process temperature is high in comparison with
the melting temperature of the metal.
All rights reserved © 2025/ 2026 |
