Materials and Construction Which of the following is produced by condensation polymerisation? Poly vinyl chloride Bakelite Polythene Polystyrene Poly vinyl chloride Bakelite Polythene Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following crystal structures characterises the ferritic stainless steel? None of these Body centred cubic Face centred cubic Simple hexagonal None of these Body centred cubic Face centred cubic Simple hexagonal ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction For spinning viscose rayon, the extrusion spinnerettes are made of Platinum or gold alloys High carbon steel Nickel Aluminium Platinum or gold alloys High carbon steel Nickel Aluminium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A material capable of undergoing large permanent deformation, when subjected to tension is termed as Brittle Ductile None of these Friable Brittle Ductile None of these Friable ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) Are used for leaf and coiled springs Do not have good resilience properties Do not require heat treatment for any of its applications Is tempered at 850°C Are used for leaf and coiled springs Do not have good resilience properties Do not require heat treatment for any of its applications Is tempered at 850°C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? High frequency transformers Induction motors Generators and small motors Armature of small motors/generators High frequency transformers Induction motors Generators and small motors Armature of small motors/generators ANSWER DOWNLOAD EXAMIANS APP
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