Eutectoid steel contains following percentage of carbon_______________?
Eutectoid steel contains following percentage of carbon_______________?
A. 0.02%
B. 0.3%
C. 0.63%
D. 0.8%
E. 1.2%.
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For a steel containing 0.8% carbon
Question: For a steel containing 0.8% carbon
[A].there is no critical point [B].
there is only one critical point [C].
there are two critical points [D].
there can be any number of critical points Answer: Option B
Explanation:
No answer description available for this question.
Pick up wrong statement about wrought iron ?
Pick up wrong statement about wrought iron ?A. It contains carbon of the order of 0 to 0.25%
B. It melts at 1535°C
C. It is very soft and ductile
D. It can be easily forge welded
E. It is made by adding suitable percent¬age of carbon to molten iron and subjecting the product to repeated hammering and rollingThe tensile strength of wrought iron is maximum _________________?
The tensile strength of wrought iron is maximum _________________?A. along the lines of slag distribution
B. perpendicular to lines of slag distribution
C. uniform in all directions
D. unpredictable
E. none of the aboveLead is poured into the joint between two pipes. These pipes may be made of____________________?
Lead is poured into the joint between two pipes. These pipes may be made of____________________?A. cast iron
B. vitrified clay
C. asbestos cement
D. concrete
E. mild steelMicro-structure of a material is, generally, examined by
Question: Micro-structure of a material is, generally, examined by
[A].naked eye [B].
optical microscope [C].
X-ray techniques [D].
none of these Answer: Option D
Explanation:
No answer description available for this question.
Addition of copper to aluminium results in_____________________?
Addition of copper to aluminium results in_____________________?A. improvement of casting characteristics
B. improvement of corrosion resistance
C. one of the best known age and precipitation-hardening systems
D. improving machinability
E. none of the above