Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its__________________?

Related Mcqs:

1. Addition of ______________ to the steel helps in increasing the residual magnetism in steel used for making magnets?

   A. Chromium
   B. Nickel
   C. Tungsten
   D. Cobalt

2. Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making___________________?

   A. Nuts
   B. Bolts
   C. Chisels
   D. Studs

3. With increase in the carbon percentage in the steel, its__________________?

   A. Hardness increases
   B. Ductility reduces
   C. Tensile strength increases
   D. All A., B. and C.

4. Lead pipes are not safe for carrying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)2. Lead pipes are readily corroded by___________________?

   A. Dilute HCl
   B. Acetic acid
   C. Concentrated H2SO4
   D. None of these

5. Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2. Lead pipes are readily corroded by_________________?

   A. Dilute HCI
   B. Acetic acid
   C. Concentrated H2SO4
   D. None of these

6. High carbon steel contains more than _____________ percent carbon?

   A. 0.5
   B. 2.2
   C. 2.5
   D. 2.8

7. Carbon content in plain carbon steel is ______________ percent?

   A. 0.1 to 0.15
   B. 0.35 to 0.45
   C. 0.65 to 0.80
   D. 0.85 to 1.2

8. Carbon percentage in medium carbon steel is around__________________?

   A. 0.1 to 0.35
   B. 0.35 to 0.5
   C. 0.8 to 1.4
   D. 1 to 1. 5

9. Low carbon steels are those in which carbon percentage is around____________________?

   A. 0.1 to 0.35
   B. 0.4 to 0.7
   C. 0.8 to 1.5
   D. 1.5 to 2

10. _____________ is added in low carbon steel to raise its yield point?

    A. Sulphur
    B. Phosphorous
    C. Silicon
    D. Manganese