Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is _____________ percent?

Related Mcqs:

1. 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

2. 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

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

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

4. Carbon content in steel is ___________________ percent?

   A. 0.1-2
   B. 4-6
   C. 2-4
   D. 0.001-0.01

5. Which of the following heat treatment processes is used for softening the hardened material ?

   A. Normalising
   B. Tempering
   C. Annealing
   D. None of these

6. Maximum carbon content in cast iron is ______________ percent?

   A. 3.8
   B. 5.2
   C. 4.8
   D. 4.3

7. 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

8. Maximum permissible sulphur content in steel is ______________ percent?

   A. 0.015
   B. 0.055
   C. 0.505
   D. 0.805

9. Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making________________?

   A. Shafts
   B. Flanges
   C. Gears
   D. Shear blades

10. Hardening of steel is not possible unless it is heated ______________ critical point?

    A. Above the highest
    B. Above the lowest
    C. Between the first & second
    D. Between the second & third