Process Control and Instrumentation Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is 36 54 12 68 36 54 12 68 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the Object is transparent Enhancement or attentuation of redia-tion occurs in the sighting path Object has varying emissivity Object and surrounding are at almost the same temperature Object is transparent Enhancement or attentuation of redia-tion occurs in the sighting path Object has varying emissivity Object and surrounding are at almost the same temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change? Water Mercury Methyl alcohal Carbon-tetrachloride Water Mercury Methyl alcohal Carbon-tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is Carbon tetrachloride Paraffin Water Ethylene glycol Carbon tetrachloride Paraffin Water Ethylene glycol ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The unit step response of the transfer function 1/(s² + 2s + 3) Has a damped oscillatory characteristics Is overdamped Has a non-zero slope at the origin Is unstable Has a damped oscillatory characteristics Is overdamped Has a non-zero slope at the origin Is unstable ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermometers is not suitable for distant reading upto 60 metres? Resistance thermometer Constant volume gas thermometer Vapor pressure thermometer Mercury in glass thermometer Resistance thermometer Constant volume gas thermometer Vapor pressure thermometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP