Related Questions

Which of the following alloying elements is present in maximum percentage in high speed steel.
A Molybdenum
B Chromium
C Tungsten
D Vanadium
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 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
If all the factors of productions are increased in a fixed proportion , volume of production increase proportion which is greater than the proportion of increase in the factors of production -this state can be described most appropriately by -
A Proportionate return to scale
B Disproportionate return of scale
C Increasing return to scale
D Law of scale
It all the factors of productions are increased in a fixed proportion, volume of production increase proportion which is greater than the proportion of increase in the factors of production this state can be described most appropriately by-
A Proportionate return to scale
B Disproportionate return of scale
C Increasing return to scale
D Law of scale
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
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
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
All of the following alloying elements of steel increases hardness but sacrifice ductility, except
A Nickel
B Vanadium
C Molybdenum
D Chromium

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