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. 300 400 150 200 300 400 150 200 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Materials having __________ lattice structure are usually the most ductile. Hexagonal close packed (hcp) Face centred cubic (fcc) None of these Body centred cubic (bcc) Hexagonal close packed (hcp) Face centred cubic (fcc) None of these Body centred cubic (bcc) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following heat treatment processes is usually applied to castings ? Annealing Tempering Carburising Normalising Annealing Tempering Carburising Normalising ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following metals is the most prone to work hardening? Copper Brass Lead Aluminium Copper Brass Lead Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action. Derivative Proportional None of these Integral Derivative Proportional None of these Integral ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The ratio of thermal & electrical conductivity is same for all the metals at the same temperature ; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K) 1/T² 1/T T T² 1/T² 1/T T T² ANSWER DOWNLOAD EXAMIANS APP
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