Lakshya Education MCQs

Question: Filler material used in welding having the lowest melting point out of the following is
B.Soft solder
C.Silver solder
D.Brazing spelter
Answer: Option B

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More Questions on This Topic :

Question 1. A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is
Question 2. Lime contains about 90% CaO. Percentage CaO present in limestone is about
  1.    25
  2.    50
  3.    70
  4.    80
Answer: Option B
Question 3. Limestone addition in the blast furnace is done to flux __________ present in the raw materials.
  1.    SiO₂
  2.    Al2O₃
  3.    MnO₂
  4.    P
Answer: Option A
Question 4. Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the
  1.    Length of the pipe
  2.    Diameter of the pipe
  3.    Density of the fluid
  4.    Velocity of the fluid
Answer: Option A
Question 5. The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called
  1.    Resilience
  2.    Toughness
  3.    Ductility
  4.    Impact strength
Answer: Option A
Question 6. Friction factor for fluid flow in pipe does not depend upon the
  1.    Pipe length
  2.    Pipe roughness
  3.    Fluid density & viscosity
  4.    Mass flow rate of fluid
Answer: Option A

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