A. kind of stainless steel
B. none ferrous alloy
C. polymer
D. cutting tool material
E. nickel and iron alloy having high permeability
Related Mcqs:
- Isotropic materials are those which have the same ____________________?
A. elastic properties in all directions
B. stresses induced in all directions
C. thermal properties in all directions
D. electric and magnetic properties in all directions
E. density throughout - Which of the following constituents of steels is softest and least strong ________________?
A. austenite
B. pearlite
C. ferrite
D. cementlte
E. bainite - German silver is an alloy of___________________?
A. silver and some impurities
B. refined silver
C. nickel, copper and zinc
D. nickel and copper
E. silver and gold - By severely deforming a metal in a particular direction it becomes _________________?
A. ductile
B. malleable
C. homogeneous
D. isotropic
E. anisotropic - In mottled cast iron, carbon is available in__________________?
A. free form
B. combined form
C. nodular form
D. flat form
E. partly in free and partly in combined state - Recrystallization temperature is one________________?
A. at which crystals first start forming from molten metal when it is cooled
B. at which new spherical crystals first begin to form from the old deformed one when a strained metal is heated
C. at which change of allotropic form takes place
D. at which crystals grow bigger in size
E. at which crystals are destroyed on heating - Nodular iron has____________________?
A. high maehinability
B. low melting point
C. high tensile strength
D. good fluidity
E. all of the above - Compressive strength of grey cast iron in tonnes/cm is of the order of___________________?
A. 3- 5
B. 5-7
C. 7-10
D. 10-15
E. 15-22 - Addition of manganese to aluminium results in__________________?
A. improvement of casting characteristics
B. improvement of corrosion resistance
C. one of the best known age and precipitation-hardening systems
D. improving machinability
E. none of the above - Muntz metal contains copper and zinc in the ratio of________________?
A. 50 : 50
B. 40 : 60
C. 60 : 40
D. 20 : 80
E. 80 : 20
