A. Molybdenum
B. Chromium
C. Vanadium
D. Silicon
Related Mcqs:
- Which of the following is not a principal alloying element for the structural steel ?
A. Molybdenum
B. Nickel
C. Manganese
D. Chromium - Steel containing low percentage of nickel, chromium & tungsten are termed as the _____________ steel ?
A. Wrought
B. Tool
C. Alloy
D. Plain carbon - Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part ?
A. Anodising
B. Tempering
C. Carburising
D. Annealing - Alloying elements present in Haynes stellite, 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 - All of the following alloying elements of steel increases hardness but sacrifice ductility, except________________?
A. Nickel
B. Vanadium
C. Molybdenum
D. Chromium - Which of the following alloying elements is present in maximum percentage in high speed steel ?
A. Molybdenum
B. Chromium
C. Tungsten
D. Vanadium - Presence of nickel & chromium in steel does not raise its _________________?
A. Elastic limit
B. Machining properties
C. Ductility
D. Resilience - The ‘transition temperature’ for ductile to brittle behavior of steel increases with increase in the _____________ content in steel?
A. Carbon
B. Manganese
C. Both A nor B
D. Neither A nor B - Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are ?
A. Cobalt, chromium & tungsten
B. Cobalt, chromium & nickel
C. Molybdenum, tungsten & chromium
D. Cobalt, zirconium & molybdenum - _______________ is the most important element, which controls the physical properties of steel ?
A. Manganese
B. Silicon
C. Carbon
D. Vanadium
