A. 0.015
B. 0.055
C. 0.505
D. 0.805
Related Mcqs:
- Maximum change in the hardness of martensite occurs in the carbon content range of _____________ percent in steel?
A. 0.01 to 0.10
B. 0.2 to 0.4
C. 0.5 to 0.7
D. 0.8 to 1.0 - 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 - The minimum carbon content in steel should be ____________________ percent for it to respond to a hardening treatment ?
A. 0.2
B. 0.4
C. 0.6
D. 0.8 - Maximum permissible air velocity in pipelines is about ______________ metre/second ?
A. 5
B. 10
C. 20
D. 40 - Increasing sulphur content in pig iron tends to make it ________________?
A. Soft
B. Hard
C. Tough
D. Ductile & malleable - 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 - As per international norms, the maximum permissible value of noise level in the industrial environment is _____________ decibels as measured at a distance of 1.5 meters from the source of noise?
A. 110
B. 85
C. 60
D. 45 - Which of the following contributes maximum as main source of sulphur in the blast furnace charge ?
A. Sinter
B. Coke
C. Iron ore
D. Limestone - 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
