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.Management Sciences
Category: Materials and Construction
An alloy of iron containing 4% carbon is called________________?
0
A. High carbon steel
B. Wrought iron
C. Mild steel
D. None of these
Silicon percentage in iron castings to have maximum hardness should be about__________________?
A. 0.3
B. 0.5
C. 0.8
D. 2.5
The material used in the filament of electric bulbs is_________________?
A. Nichrome
B. Tungsten
C. Constantan
D. German silver
Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as_____________________?
A. Sherardizing
B. Parkerising
C. Anodising
D. None of these
Dry chlorine can be handled in a vessel made of__________________?
A. Iron or steel
B. PVC
C. Nickel
D. Brass
Among the tin containing alloys, ______________ consumes the maximum amount of tin?
A. Solder
B. White metal
C. Pewter metal
D. Bronzes
Alinco, which is a aluminium-cobalt-nickel steel, is used for making __________________?
A. Surgical instruments
B. Powerful magnets
C. Chemical equipments
D. Boiler tubes
Cast iron compared to steel is better in__________________?
A. Ductility
B. Fluidity & castability
C. Strength
D. Malleability
Ability of a material to ______________ is indicated by its damping capacity?
A. Withstand compression
B. Absorb vibration
C. Absorb shock
D. None of these
Wrought iron is having very high ________________?
A. Hardness
B. Strength
C. Corrosion resistance
D. Susceptibility to changes in its properties by heat treatment
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