Q. In electro discharge machining, cutting tools are usually made of
1) High speed steel
2) Tool steel
3) Carbide-tipped tool
4) Graphite
Q. Glass is made of
1) Sand & Silicate
2) Quartz & Mica
3) Sand & Silt
4) None of these
Q. Which of the following is called strategic metal?
1) Silicon
2) Titanium
3) Uranium
4) Germanium
Q. Heavy water is
1) Sea water(H2O + salt)
2) D2O2
3) H2O2
4) None of the above
Q. The operation of threading a drilled hole is called
1) Tapping
2) Broaching
3) Lapping
4) Reaming
Q. The first symbol in a grinding wheel code is the
1) Bond Type
2) Grain size
3) Structure
4) Abrasive Type
Q. Thermit welding is a form of
1) Gas welding
2) Fusion welding
3) Resistance welding
4) Arc welding
Q. Electrode gets consumed in which type of welding process?
1) Arc
2) Thermit
3) T.I.G.
4) Gas
Q. Which of the following metals can be easily drawn into the wire?
1) Lead
2) Copper
3) Tin
4) Zinc
Q. Base of a transistor is
1) Heavily doped
2) Moderately doped
3) Lightly doped
4) None of the above
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