Materials and Construction Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its Low temperature strength properties High strength to weight ratio High strength and corrosion & oxidation-resistance at elevated temperature Its ability to be cast, rolled, forged & stamped Low temperature strength properties High strength to weight ratio High strength and corrosion & oxidation-resistance at elevated temperature Its ability to be cast, rolled, forged & stamped ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The most commonly used resin for making reinforced plastic is Unsaturated polyester Nylon-6 Polyurathane Polypropylene Unsaturated polyester Nylon-6 Polyurathane Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Aluminium as a material of construction suffers from the disadvantage of Scarce availability Very high cost Very low strength to weight ratio Rather low tensile strength Scarce availability Very high cost Very low strength to weight ratio Rather low tensile strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction How many molecules per unit cell are there in a face centred cubic lettice? 8 2 6 4 8 2 6 4 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Visco-elastic behaviour of materials which is time dependent is common in Non-crystalline solids Crystalline solid Non-crystalline organic polymer Plastics Non-crystalline solids Crystalline solid Non-crystalline organic polymer Plastics ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction As the impurities are oxidised, the melting point of iron Increases Decreases May increase or decrease ; unpredictable Remains unchanged Increases Decreases May increase or decrease ; unpredictable Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
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