A. Nichrome
B. Tungsten
C. Constantan
D. German silver
The material used in the filament of electric bulbs is_________________? Read More »
Materials and Construction A. Zinc, copper and nickel
B. Cobalt, chromium and tungsten
C. Zinc, aluminium and nickel
D. Nickel, cobalt and vanadium
Constituents of stellite are__________________? Read More »
Materials and Construction A. Plasticity
B. Creep
C. Elasticity
D. Ductility
A. Surface coating
B. Heat treatment of high speed steel
C. Cold working on metals
D. None of these
Sherardizing process is used for__________________? Read More »
Materials and Construction A. Thermal & electrical insulator
B. Conductor of heat
C. Conductor of electricity
D. Both B. & C.
Graphite is a good________________? Read More »
Materials and Construction A. Ferrous oxide
B. Hydrated ferric oxide
C. Powdered iron
D. Ferric sulphide
Iron rust is_________________? Read More »
Materials and Construction A. Dilute H2SO4
B. Dilute HNO3
C. Dilute HCl
D. Hydrofluoric acid
Glass lined vessels are not used for handling/storing__________________? Read More »
Materials and Construction A. Elasticity
B. Plasticity
C. Ductility
D. Malleability
A. Tensile
B. Compressive
C. Fluctuating
D. None of these
Fatigue failure of a material results from ______________ stress? Read More »
Materials and Construction A. Tensile
B. Compressive
C. Fluctuating
D. None of these
Fatigue failure of a material results from _____________ stress? Read More »
Materials and Construction