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Materials and Construction

Materials and Construction
Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as

Sheradising
None of these
Anodising
Parkerising

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Materials and Construction
Addition of nickel to copper improves its

Ductility
Hardness
Strength
Machinability

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Materials and Construction
Which of the following is the softest material?

Quartz
Calcite
Flourite
Corrundum

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Materials and Construction
Titanium metal

None of these
Is used in oceanographic and space exploration applications
Can not be welded
Exists in three allotropic forms

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Materials and Construction
Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C ?

Graphite
Monel
Kel-F and teflon
Stainless steel

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Materials and Construction
The heat treatment process applied to cold formed steel parts is

Artificial ageing
Tempering
Solution annealing
Normalising

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