Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object and surrounding are at almost the same temperature Object has varying emissivity Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object and surrounding are at almost the same temperature Object has varying emissivity ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Positioning controllers are used for Temperature changes High loads Low loads Flow rate changes Temperature changes High loads Low loads Flow rate changes ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The open loop transfer function of a control system is KR/(1 + TS) . This represents A first order time lag A second order system A first order system Dead time system A first order time lag A second order system A first order system Dead time system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following controllers has maximum offset? P-I-D controller P-controller P-D controller P-I controller P-I-D controller P-controller P-D controller P-I controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Vapour actuated pressure spring thermometer does not require ambient temperature compensation. Ambient temperature compensation is provided in gas or liquid expansion pressure spring thermometer by Making the volume of thermometer bulb as large as conveniently possible Reducing the volume of the capillary to a minimum Reducing the volume of the receiving element to a minimum All of these Making the volume of thermometer bulb as large as conveniently possible Reducing the volume of the capillary to a minimum Reducing the volume of the receiving element to a minimum All of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a Mercury thermometer Dilatometer Bimetallic thermometer Beckman thermometer Mercury thermometer Dilatometer Bimetallic thermometer Beckman thermometer ANSWER DOWNLOAD EXAMIANS APP
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