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Engineering Materials

Engineering Materials
Solder is an alloy consisting of

Lead and zinc
Tin and copper
Tin and lead
Tin, antimony, copper

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Engineering Materials
Phosphor bronze contains

2.5% phosphorous
1% phosphorous
0.5% of phosphorous
None of these

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Engineering Materials
Dye penetrant method is generally used to locate

Temporary defects
Superficial defects
Core defects
Surface defects

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Engineering Materials
Closed packed hexagonal space lattice is found in

Gamma-iron, aluminium, copper, lead, silver and nickel
None of these
Zinc, magnesium, cobalt, cadmium, antimony and bismuth
Alpha-iron, tungsten, chromium and molybdenum

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Engineering Materials
Maximum percentage of carbon in austenite is

0.017
0.00025
0.008
0.0026

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Engineering Materials
Manganese is added in low carbon steel to

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

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