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Engineering Materials

Engineering Materials
Which of the following alloys does not have copper as one of the constituents?

Delta metal
Constantan
Monel metal
Nichrome

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Engineering Materials
Crystal structure of a material is, generally, examined by

Optical microscope
Naked eye
X-ray techniques
Metallurgical microscope

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Engineering Materials
Which of the following represents the allotropic forms of iron?

Body centered cubic iron and face centered cubic iron
Alpha iron and beta iron
Alpha iron, beta iron and gamma iron
Alpha iron, gamma from and delta iron

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Engineering Materials
Manganese is added in low carbon steel to

All of these
Raise the yield point
Make the steel tougher and harder
Make the steel ductile and of good bending qualities

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Engineering Materials
The hardness and tensile strength in austenitic stainless steel can be increased by

Normalizing
Full annealing
Hardening and cold working
Martempering

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Engineering Materials
Constantan an alloy used in thermocouples is an alloy of

Copper and iron
Copper and nickel
Copper and tin
Copper and zinc

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