Correct answer
A. PTFE and porcelain
Explanation
The correct answer is PTFE and porcelain.
The initial value (t = 0) of the unit step response of the transfer function [(s + 1)/(2s + 1)] is________?
Radiator of an automobile engine is a ________ type of heat exchanger?
Concentration of sulphide ores is done usually by________?
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in________?
The purpose of providing expansion bellows in the shell of tubular exchanger is to ________?
________ has a negative co-efficient of linear expansion?