Related Questions

What is the method of brazing used to join relatively small assemblies made from materials that either do not oxidize at the brazing temperature or can be protected from oxidation with a flux?
A Torch brazing
B Dip brazing
C Resistance brazing
D Furnace brazing
During brazing, if the fluxes are entrapped, it results in the
A Distortion of brazed joints
B Cracking of joints
C Presence of gas pockets
D Corrosion
Commonly used flux for brazing is
A Zinc chloride
B Borax
C Ammonium chloride
D Rosin
Which of the following metals forms an amalgam with other metals?
A Tin
B Mercury
C Lead
D Zinc
Ceramic nuclear metals compared to solid nuclear metals have
A higher melting points
B low strength at high temperature
C more chances of radiation damage
D poorer corrosion resistance
There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant?
A Mercury
B Arsenic
C Aluminium
D Lead
Which of the following metals form an amalgam with other metals ?
A Lead
B Tin
C Zinc
D Mercury
An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is
A Cutting speed
B Feed rate
C Shear angle
D Tool geometry
What type of fusion welding process is used for welding sheet metals of all engineering metals (except Cu, Ag) in automobile and air craft industries, pipe and tubing production?
A Thermit welding
B Electroslag welding
C Resistance welding
D Submerged arc Welding
A metalloid possesses the characteristics of both the metals and non-metals. Which of the following is not a metalloid?
A Arsenic
B Antimony
C Lead
D None of these

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