A. Finer
B. Coarser
C. Medium
D. Any type of
Related Mcqs:
- 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 ?
A. Hard
B. Soft
C. Silicon carbide
D. Aluminium oxide - A dense structure of grinding wheel is not used for the_____________________?
A. Ductile material
B. Hard materials
C. Brittle materials
D. Finishing cuts - 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 - Reduction in the grain size reduces the _________________ of the material?
A. Fatigue resistance
B. Tensile strength
C. Creep resistance
D. All A, B. & C - The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the ‘Curie temperature’. Its value for cobalt is ______________ °C?
A. 768
B. 1127
C. 1359
D. 1480 - With decrease in the grain size of a material, its creep resistance___________________?
A. Increases
B. Decreases
C. Remain constant
D. Either A. or B.; depends on the material - Yield strength of a polycrystalline metal with an average grain size „d’, is proportional to ____________________?
A. d1/2
B. d-1/2
C. d
D. d-1 - On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is__________________?
A. Creep
B. Toughness
C. Tensile strength
D. Fatigue - Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and ___________________?
A. Manganese
B. Silicon
C. Nickel
D. Chromium - Isotropic materials have the same _______________________ in all directions?
A. Induced stresses
B. Density
C. Elastic properties
D. Thermal properties
