Q.1
Which of the following process involves metallurgical fusion?
  • a) Forming
  • b) Welding
  • c) Forging
  • d) Extrusion
Q.2
In welding, two parts are joined by bringing them to a temperature of?
  • a) Above melting point temperature
  • b) Below melting point temperature
  • c) Equal to melting point temperature
  • d) Equal to Curie temperature
Q.3
In welding the strength of the joint piece could be?
  • a) Equal to that of parent metal
  • b) Greater than that of parent metal
  • c) Equal or Greater than that of parent metal
  • d) Is lesser than the parent metal
Q.4
Which of the following is a type of welding joint?
  • a) Tee joint
  • b) Lap joint
  • c) Corner joint
  • d) All of the Mentioned
Q.5
The oil substances are removed from the interface by using which of the following organic solvent?
  • a) Acetone
  • b) Carbon tetrachloride
  • c) Acetone & Carbon tetrachloride
  • d) Ethylene glycol
Q.6
Which of the following does not require fluxes to eliminate the oxides present in them?
  • a) Mild steel
  • b) Copper
  • c) Aluminium
  • d) Magnesium
Q.7
The heavier oxide films are removed by using?
  • a) Basic flux
  • b) Emery
  • c) Organic solvents
  • d) Neutral flux
Q.8
In which of the following welding process no filler material is added during joining?
  • a) Autogenous
  • b) Homogenous
  • c) Heterogenous
  • d) Either homogenous or heterogenous
Q.9
Which of the following is a type of autogenous welding?
  • a) Arc
  • b) Gas
  • c) Brazing
  • d) Resistance
Q.10
In which of the following joining process, the filler material used is the same as the parent material?
  • a) Autogenous
  • b) Homogenous
  • c) Heterogenous
  • d) Either homogenous or heterogenous
Q.11
In which of the following joining process the filler material used is different as the parent material?
  • a) Autogenous
  • b) Homogenous
  • c) Heterogenous
  • d) Either homogenous or heterogenous
Q.12
Which of the following is a type of homogenous welding?
  • a) Gas
  • b) Solid phase
  • c) Brazing
  • d) Resistance
Q.13
Which of the following is a type of heterogeneous welding?
  • a) Gas
  • b) Solid phase
  • c) Arc
  • d) Soldering
Q.14
When two insoluble materials such as iron and silver are supposed to join, which of the following joining process is used?
  • a) Autogenous
  • b) Homogenous
  • c) Heterogenous
  • d) Either homogenous or heterogenous
Q.15
For joining two insoluble materials such as iron and silver which of the following filler material is used?
  • a) Cobalt
  • b) Tin
  • c) Aluminium
  • d) Zinc
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