Materials and Construction Which of the following is produced by addition polymerisation? Phenol formaldehyde Urea-formaldehyde Polybutadiene Dacron Phenol formaldehyde Urea-formaldehyde Polybutadiene Dacron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of nitrogen in steel Makes it brittle Increases its hardness Is desirable Increases its strength Makes it brittle Increases its hardness Is desirable Increases its strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction High speed steel tools retain their hardness upto a temperature of __________ °C. 500 1100 750 900 500 1100 750 900 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The maximum percentage of chromium that can be added to steel is about 30 12 24 18 30 12 24 18 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A hardened steel essentially contains Sorbite Martensite Troostite None of these Sorbite Martensite Troostite None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Platinum and silver are corroded by Phosphoric acid None of these Caustic soda solution Sulphuric acid (10%) Phosphoric acid None of these Caustic soda solution Sulphuric acid (10%) ANSWER DOWNLOAD EXAMIANS APP
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