Which of the following finds the least commercial use ?

Related Mcqs:

1. Which of the following has the least value of ultimate tensile strength (UTS) ?

   A. Medium carbon steel
   B. High carbon steel
   C. Cast iron
   D. Wrought iron

2. Which of the following has the least carbon percentage ?

   A. Low carbon steel
   B. Mild steel
   C. Wrought iron
   D. White cast iron

3. Which one contains the least percentage of carbon ?

   A. Wrought iron
   B. High speed steel
   C. Cast iron
   D. Pig iron

4. Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system ?

   A. High silicon iron, silicon rubber, Kel-F and Teflon
   B. Mild steel and stainless steel
   C. Cast iron, tin and aluminium
   D. Copper, nickel and Monel

5. Which of the following is a non-magnetic material ?

   A. Cobalt
   B. Zinc
   C. Nickel
   D. None of these

6. Which of the following is not used as the ceramic material in „cermets‟?

   A. Silicides
   B. Oxides
   C. Carbides
   D. Nitrides

7. Which of the following is the lightest of engineering metals ?

   A. Magnesium
   B. Aluminium
   C. Titanium
   D. Tin

8. Pick the odd man out of the following?

   A. Calorising
   B. Pack carburising
   C. Nitriding
   D. Cyaniding

9. Which of the following stainless steels is non-magnetic ?

   A. Ferritic
   B. Martenistic
   C. Austenitic
   D. None of these

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

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