A. Silicon
B. Carbon
C. Phosphorous
D. Chromium
Related Mcqs:
- Solute atoms which cause yield point phenomenon in mild steel are/is_________________?
A. Aluminium
B. Boron
C. Carbon
D. Nitrogen - Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?
A. Small punches, broaches reamers and springs
B. Cutlery, screws, rivets and files
C. Mandrels, twist drills, small lathe tools and razors
D. Forgings like can shaft, structural steel plate, threading dies and drawing dies - Steel containing low percentage of nickel, chromium & tungsten are termed as the _____________ steel ?
A. Wrought
B. Tool
C. Alloy
D. Plain carbon - Brittleness induced due to the presence of sulphur in steel can be reduced by adding____________________?
A. Manganese
B. Magnesium
C. Vanadium
D. Copper - Brittleness induced due to the presence of sulphur in steel can be reduced by adding______________?
A. Manganese
B. Magnesium
C. Vanadium
D. Copper - Which of the following is not a principal alloying element for the structural steel ?
A. Molybdenum
B. Nickel
C. Manganese
D. Chromium - Presence of nickel & chromium in steel does not raise its _________________?
A. Elastic limit
B. Machining properties
C. Ductility
D. Resilience - Eutectoid composition of carbon steel at room temperature is___________________?
A. Cementite
B. Pearlite
C. Martensite
D. Ferrite - The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is___________________?
A. Full annealing
B. Bright annealing
C. Patenting
D. None of these - With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and _____________ is not affected ?
A. Impact strength
B. Percent elongation
C. Hardness
D. Both B & C
