Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1) ? A. w = 1/√14, Kc = 45/7 √14B. w =…
Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by__________________? A. Filling nitrogen under pressure in the stem B. Increasing the diameter of the…
The initial value (t = 0) of the unit step response of the transfer function [(s + 1)/(2s + 1)] is__________________? A. 0B. ½ C. 1 D. 2
Stabilising time for the controllers is the time required for the response to reach _____________ percent of its ultimate value? A. 63.2 B. 87.5C. 95 D. 100
Thermistors are made of__________________? A. Ultra pure metalsB. Metal oxides C. Iron-copper alloys D. Nickel-chromium alloys
A pyranometer is an instrument used for measuring the___________________? A. Beam radiationB. Global radiation C. Bright sunshine period D. None of these
The transfer function for an ideal proportional plus reset controller (reset time T) is_______________? A. Kc[1 + (1/TS)] B. Kc(1 + TS) C. Kc/(1 + TS) D. Kc/[1 + (s/T)]
Radiation thermometer cannot measure the temperature ___________________? A. Inside a pressure vessel B. Of an object without coming in contact with itC. Of liquid oxygen D. Of moving objects at high temperature
Which of the following thermocouples has the least temperature measurement range ? A. Copper-constantan B. Chromel-alumel C. Platinum-platinum/rhodium D. Iron-constantan
Platinum resistance thermometer can be used upto antimony point which is ____________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure? A. 961.93B. 630.74 C. 1064.43 D. 1261.93