The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding _______________ grinding wheel is normally used ?

Related Mcqs:

1. For grinding of softer materials, the grinding wheel should have _________________ grain size ?

   A. Finer
   B. Coarser
   C. Medium
   D. Any type of

2. Mho’s scale of hardness, which consists of 10 standard minerals is used for the measurement of _______________ hardness?

   A. Scratch
   B. Indentation
   C. Dynamic
   D. Rebound

3. A dense structure of grinding wheel is not used for the_____________________?

   A. Ductile material
   B. Hard materials
   C. Brittle materials
   D. Finishing cuts

4. Square steel key is normally strong in failure by shear & crushing. Keys are normally made of _______________ steel bars?

   A. Hot rolled mild
   B. Cold rolled mild
   C. Forged
   D. Machinable stainless

5. The following type of bonding is strongly directional in solids ?

   A. Vander Waal’s
   B. Ionic
   C. Metallic
   D. Covalent

6. Cold working of a material results in increase in hardness, which is termed as the ______________ hardening ?

   A. Cold
   B. Work
   C. Age
   D. Induction

7. Which of the following is the most suitable abrasive for grinding high tensile strength materials ?

   A. Silicon carbide
   B. Corundum
   C. Aluminium oxide
   D. Boron carbide

8. Maximum hardenability of steel depends upon its_______________________?

   A. Chemical composition
   B. Carbon content
   C. Grain size
   D. Alloying elements content

9. Diffusion co-efficient of a metal in a solid solution depends upon its ?

   A. Composition
   B. Temperature
   C. Both A. & B.
   D. Neither A. nor B.

10. Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V – b) = RT, depends upon its___________________?

    A. Pressure & temperature
    B. Pressure & specific volume
    C. Temperature & specific volume
    D. Temperature only