Related Questions

Alloying elements present in Hayness stel-lite, which has superior performance than high speed steel, are
A Nickel, cobalt & chromium
B Tungsten, chromium & cobalt
C Manganese, chromium & cobalt
D Tungsten, molybdenum & nickel
The main alloying elements high speed steel in order of increasing proportion are
A Vanadium, chromium, tungsten
B Tungsten, titanium, vanadium
C Chromium, titanium, vanadium
D Tungsten, chromium, titanium
The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
A Equal to
B Less than
C More than
D None of these
Stainless steel is usually made by alloying the steel with
A Copper and nickel
B Copper and chromium
C Chromium and nickel
D Manganese and copper
Which of the following alloying elements reduces the formation of iron sulphide in steel?
A Cobalt
B Nickel
C Manganese
D Vanadium
Which of the following alloying elements when added in steel does not improve its lachinability?
A Sulphur
B Phosphorous
C Copper
D Lead
Structural steel contains following principal alloying elements
A Nickel, chromium and manganese
B Tungsten, molybdenum and phosphorous
C Lead, tin, aluminium
D Zinc, sulphur, and chromium
All of the following alloying elements of steel increases hardness but sacrifice ductility, except
A Nickel
B Vanadium
C Molybdenum
D Chromium
High speed steel drills can be operated at about _________ the speed of high carbon steel drills.
A One-half
B One-fourth
C Double
D Four times
The alloying element which can replace tungsten in high speed steels is
A Nickel
B Vanadium
C Cobalt
D Molybdenum

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