Chemical Engineering Basics A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent. 150 200 300 400 150 200 300 400 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? Initiation of crack from below the surface does not occur Initation of crack occurs on the surface of the machine part Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur Initiation of crack from below the surface does not occur Initation of crack occurs on the surface of the machine part Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following metals is the most prone to work hardening? Brass Aluminium Copper Lead Brass Aluminium Copper Lead ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then Its efficiency will not be affected It will not develop sufficient head to raise water It will be cavitated It will deliver low discharge of liquid Its efficiency will not be affected It will not develop sufficient head to raise water It will be cavitated It will deliver low discharge of liquid ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Capacity & power requirement for an air compressor working at high altitude compared to sea-level will be Same Less More Either more or less; depends on the climatic conditions Same Less More Either more or less; depends on the climatic conditions ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Sub zero treatment of steel is done to Suppress martensite transformation Enhance its working performance in sub zero atmosphere Induce temper brittleness after its hardening Reduce the retained austenite in hardened steel Suppress martensite transformation Enhance its working performance in sub zero atmosphere Induce temper brittleness after its hardening Reduce the retained austenite in hardened steel ANSWER DOWNLOAD EXAMIANS APP
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