i$)$ Control valve positioner used to overcome

a$)$ valve stickiness

b$)$ valve friction

c$)$ valve hysteresis

d$)$ all above

ii$)$ Step response of two equal first order systems in series is

a$)$ Overdamped

b$)$ underdamped

c$)$ critically damped

d$)$ critical stable

iii$)$ Example for pressure sensor is

a$)$ Ultrasonic meter

b$)$ Magnetic meter

c$)$ Strain gauge

d$)$ Thermocouple

iv$)$ A valve manipulates the flow of steam to the exchanger used for heating flammable solvent, valve type is

a$)$ Air to open valve

b$)$ Air to close valve

c$)$ Full open valve

d$)$ Half open valve