1.  carbon

2.  vanadium

3.  manganese

4.  cobalt

4
Correct Answer :

vanadium


Explanation :
No Explanation available for this question

1.  nickel

2.  chromium

3.  tungsten

4.  vanadium

4
Correct Answer :

chromium


Explanation :
No Explanation available for this question

1.  mild steel

2.  alloy steel

3.  high carbon

4.  tungsten steel

4
Correct Answer :

high carbon


Explanation :
No Explanation available for this question

1.  aluminum in steel results in excessive grain growth

2.  manganese in steel induces hardness

3.  nickel and chromium in steel help in raising the elastic limit and improve the resilience and ductility

4.  tungsten in steels improves magnetic properties and harden ability

4
Correct Answer :

aluminum in steel results in excessive grain growth


Explanation :
No Explanation available for this question

1.  providing corrosion resistance

2.  improving machining properties

3.  providing high strength at elevated temperatures

4.   raising the elastic limit

4
Correct Answer :

improving machining properties


Explanation :
No Explanation available for this question

1.  sulphur, lead, phosphorous

2.  silicon, aluminum, titanium

3.  vanadium, aluminum

4.  chromium, nickel

4
Correct Answer :

sulphur, lead, phosphorous


Explanation :
No Explanation available for this question

1.  0.02%

2.  0.3%

3.  0.63%

4.  0.8%

4
Correct Answer :

0.8\%


Explanation :
No Explanation available for this question

1.  aluminum, copper etc.

2.  nickel, molybdenum etc.

3.  nickel, copper, etc.

4.  all of the above

4
Correct Answer :

nickel, molybdenum etc.


Explanation :
No Explanation available for this question

1.  nickel, copper

2.  nickel, molybdenum

3.  zinc, tin, lead

4.  nickel, lead and tin

4
Correct Answer :

nickel, copper


Explanation :
No Explanation available for this question

1.  silver and some impurities

2.  refined silver

3.  nickel, copper and zinc

4.  nickel and copper

4
Correct Answer :

nickel, copper and zinc


Explanation :
No Explanation available for this question

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