Process Control and Instrumentation Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C. Mercury thermometer None of these Bimetallic thermometer Radiation pyrometer Mercury thermometer None of these Bimetallic thermometer Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells used in temperature measurements should have Low emissivity High transmissivity of radiation Very thick walls Polished surface Low emissivity High transmissivity of radiation Very thick walls Polished surface ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) nRT/V V/nRT nRT/P p/nRT nRT/V V/nRT nRT/P p/nRT ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their High viscosity index Low flash point Low electrical conductivity Low thermal conductivity High viscosity index Low flash point Low electrical conductivity Low thermal conductivity 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 All of these Reducing the volume of the capillary to a minimum Reducing the volume of the receiving element to a minimum Making the volume of thermometer bulb as large as conveniently possible All of these Reducing the volume of the capillary to a minimum Reducing the volume of the receiving element to a minimum ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The closed loop pole of a stable second order system could be Both real and negative Complex conjugate with positive real parts One real positive and the other real negative Both real and positive Both real and negative Complex conjugate with positive real parts One real positive and the other real negative Both real and positive ANSWER DOWNLOAD EXAMIANS APP
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